Updated flash screen with new arch

app/src/main/AndroidManifest.xml

@@ -35,7 +35,7 @@
             android:name="a.f"
             android:configChanges="keyboardHidden|orientation|screenSize"
             android:screenOrientation="nosensor"
-            android:theme="@style/AppTheme.NoDrawer" />
+            android:theme="@style/MagiskTheme.Flashing" />
 
         <!-- Superuser -->
 

app/src/main/java/com/topjohnwu/magisk/Const.java

@@ -35,6 +35,9 @@ public class Const {
 
     public static final int USER_ID = Process.myUid() / 100000;
 
+    // Generic
+    public static final String MAGISK_INSTALL_LOG_FILENAME = "magisk_install_log_%s.log";
+
     public static final class MAGISK_VER {
         public static final int MIN_SUPPORT = 18000;
     }

app/src/main/java/com/topjohnwu/magisk/di/ViewModelsModule.kt

@@ -1,6 +1,8 @@
 package com.topjohnwu.magisk.di
 
+import android.net.Uri
 import com.topjohnwu.magisk.ui.MainViewModel
+import com.topjohnwu.magisk.ui.flash.FlashViewModel
 import com.topjohnwu.magisk.ui.hide.HideViewModel
 import com.topjohnwu.magisk.ui.home.HomeViewModel
 import com.topjohnwu.magisk.ui.log.LogViewModel
@@ -17,4 +19,5 @@ val viewModelModules = module {
     viewModel { HideViewModel(get(), get()) }
     viewModel { ModuleViewModel(get(), get()) }
     viewModel { LogViewModel(get(), get()) }
+    viewModel { (action: String, uri: Uri?) -> FlashViewModel(action, uri, get()) }
 }

app/src/main/java/com/topjohnwu/magisk/model/events/ViewEvents.kt

@@ -3,6 +3,7 @@ package com.topjohnwu.magisk.model.events
 import android.app.Activity
 import com.skoumal.teanity.viewevents.ViewEvent
 import com.topjohnwu.magisk.model.entity.Repo
+import io.reactivex.subjects.PublishSubject
 
 
 data class OpenLinkEvent(val url: String) : ViewEvent()
@@ -25,4 +26,11 @@ class OpenFilePickerEvent : ViewEvent()
 class OpenChangelogEvent(val item: Repo) : ViewEvent()
 class InstallModuleEvent(val item: Repo) : ViewEvent()
 
-class PageChangedEvent : ViewEvent()
+class PageChangedEvent : ViewEvent()
+
+class PermissionEvent(
+    val permissions: List<String>,
+    val callback: PublishSubject<Boolean>
+) : ViewEvent()
+
+class BackPressEvent : ViewEvent()

app/src/main/java/com/topjohnwu/magisk/model/flash/FlashResultListener.kt

@@ -0,0 +1,7 @@
+package com.topjohnwu.magisk.model.flash
+
+interface FlashResultListener {
+
+    fun onResult(isSuccess: Boolean)
+
+}

app/src/main/java/com/topjohnwu/magisk/model/flash/Flashing.kt

@@ -13,7 +13,7 @@ sealed class Flashing(
     uri: Uri,
     private val console: MutableList<String>,
     log: MutableList<String>,
-    private val resultListener: (Result<Boolean>) -> Unit
+    private val resultListener: FlashResultListener
 ) : FlashZip(uri, console, log) {
 
     override fun onResult(success: Boolean) {
@@ -21,14 +21,14 @@ sealed class Flashing(
             console.add("! Installation failed")
         }
 
-        resultListener(Result.success(success))
+        resultListener.onResult(success)
     }
 
     class Install(
         uri: Uri,
         console: MutableList<String>,
         log: MutableList<String>,
-        resultListener: (Result<Boolean>) -> Unit = {}
+        resultListener: FlashResultListener
     ) : Flashing(uri, console, log, resultListener) {
 
         override fun onResult(success: Boolean) {
@@ -44,7 +44,7 @@ sealed class Flashing(
         uri: Uri,
         console: MutableList<String>,
         log: MutableList<String>,
-        resultListener: (Result<Boolean>) -> Unit = {}
+        resultListener: FlashResultListener
     ) : Flashing(uri, console, log, resultListener) {
 
         private val context: Context by inject()

app/src/main/java/com/topjohnwu/magisk/model/flash/Patching.kt

@@ -6,8 +6,8 @@ import com.topjohnwu.superuser.Shell
 
 sealed class Patching(
     private val console: MutableList<String>,
-    logs: List<String>,
+    logs: MutableList<String>,
-    private val resultListener: (Result<Boolean>) -> Unit
+    private val resultListener: FlashResultListener
 ) : MagiskInstaller(console, logs) {
 
     override fun onResult(success: Boolean) {
@@ -17,14 +17,14 @@ sealed class Patching(
             Shell.sh("rm -rf $installDir").submit()
             console.add("! Installation failed")
         }
-        resultListener(Result.success(success))
+        resultListener.onResult(success)
     }
 
     class File(
         private val uri: Uri,
         console: MutableList<String>,
-        logs: List<String>,
+        logs: MutableList<String>,
-        resultListener: (Result<Boolean>) -> Unit = {}
+        resultListener: FlashResultListener
     ) : Patching(console, logs, resultListener) {
         override fun operations() =
             extractZip() && handleFile(uri) && patchBoot() && storeBoot()
@@ -32,8 +32,8 @@ sealed class Patching(
 
     class SecondSlot(
         console: MutableList<String>,
-        logs: List<String>,
+        logs: MutableList<String>,
-        resultListener: (Result<Boolean>) -> Unit = {}
+        resultListener: FlashResultListener
     ) : Patching(console, logs, resultListener) {
         override fun operations() =
             findSecondaryImage() && extractZip() && patchBoot() && flashBoot() && postOTA()
@@ -41,8 +41,8 @@ sealed class Patching(
 
     class Direct(
         console: MutableList<String>,
-        logs: List<String>,
+        logs: MutableList<String>,
-        resultListener: (Result<Boolean>) -> Unit = {}
+        resultListener: FlashResultListener
     ) : Patching(console, logs, resultListener) {
         override fun operations() =
             findImage() && extractZip() && patchBoot() && flashBoot()

app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskActivity.kt

@@ -16,6 +16,7 @@ import com.ncapdevi.fragnav.FragNavController
 import com.ncapdevi.fragnav.FragNavTransactionOptions
 import com.skoumal.teanity.viewevents.ViewEvent
 import com.topjohnwu.magisk.Config
+import com.topjohnwu.magisk.model.events.BackPressEvent
 import com.topjohnwu.magisk.model.events.PermissionEvent
 import com.topjohnwu.magisk.model.events.ViewActionEvent
 import com.topjohnwu.magisk.model.navigation.MagiskAnimBuilder
@@ -36,7 +37,8 @@ abstract class MagiskActivity<ViewModel : MagiskViewModel, Binding : ViewDataBin
 
     protected open val defaultPosition: Int = 0
 
-    protected val navigationController by lazy {
+    protected val navigationController get() = if (navHostId == 0) null else _navigationController
+    private val _navigationController by lazy {
         if (navHostId == 0) throw IllegalStateException("Did you forget to override \"navHostId\"?")
         FragNavController(supportFragmentManager, navHostId)
     }
@@ -54,7 +56,7 @@ abstract class MagiskActivity<ViewModel : MagiskViewModel, Binding : ViewDataBin
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        navigationController.apply {
+        navigationController?.apply {
             rootFragmentListener = this@MagiskActivity
             initialize(defaultPosition, savedInstanceState)
         }
@@ -62,13 +64,14 @@ abstract class MagiskActivity<ViewModel : MagiskViewModel, Binding : ViewDataBin
 
     override fun onSaveInstanceState(outState: Bundle) {
         super.onSaveInstanceState(outState)
-        navigationController.onSaveInstanceState(outState)
+        navigationController?.onSaveInstanceState(outState)
     }
 
     @CallSuper
     override fun onEventDispatched(event: ViewEvent) {
         super.onEventDispatched(event)
         when (event) {
+            is BackPressEvent -> onBackPressed()
             is MagiskNavigationEvent -> navigateTo(event)
             is ViewActionEvent -> event.action(this)
             is PermissionEvent -> withPermissions(*event.permissions.toTypedArray()) {
@@ -86,15 +89,15 @@ abstract class MagiskActivity<ViewModel : MagiskViewModel, Binding : ViewDataBin
     override fun navigateTo(event: MagiskNavigationEvent) {
         val directions = event.navDirections
 
-        navigationController.defaultTransactionOptions = FragNavTransactionOptions.newBuilder()
+        navigationController?.defaultTransactionOptions = FragNavTransactionOptions.newBuilder()
             .customAnimations(event.animOptions)
             .build()
 
-        navigationController.currentStack
+        navigationController?.currentStack
             ?.indexOfFirst { it.javaClass == event.navOptions.popUpTo }
             ?.let { if (it == -1) null else it } // invalidate if class is not found
             ?.let { if (event.navOptions.inclusive) it + 1 else it }
-            ?.let { navigationController.popFragments(it) }
+            ?.let { navigationController?.popFragments(it) }
 
         when (directions.isActivity) {
             true -> navigateToActivity(event)
@@ -127,21 +130,21 @@ abstract class MagiskActivity<ViewModel : MagiskViewModel, Binding : ViewDataBin
         when (val index = baseFragments.indexOfFirst { it.java.name == destination.name }) {
             -1 -> destination.newInstance()
                 .apply { arguments = event.navDirections.args }
-                .let { navigationController.pushFragment(it) }
+                .let { navigationController?.pushFragment(it) }
             // When it's desired that fragments of same class are put on top of one another edit this
-            else -> navigationController.switchTab(index)
+            else -> navigationController?.switchTab(index)
         }
     }
 
     override fun onBackPressed() {
-        val fragment = navigationController.currentFrag as? MagiskFragment<*, *>
+        val fragment = navigationController?.currentFrag as? MagiskFragment<*, *>
 
         if (fragment?.onBackPressed() == true) {
             return
         }
 
         try {
-            navigationController.popFragment()
+            navigationController?.popFragment() ?: throw UnsupportedOperationException()
         } catch (e: UnsupportedOperationException) {
             super.onBackPressed()
         }

app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskFragment.kt

@@ -5,6 +5,7 @@ import androidx.databinding.ViewDataBinding
 import androidx.fragment.app.Fragment
 import com.skoumal.teanity.view.TeanityFragment
 import com.skoumal.teanity.viewevents.ViewEvent
+import com.topjohnwu.magisk.model.events.BackPressEvent
 import com.topjohnwu.magisk.model.events.PermissionEvent
 import com.topjohnwu.magisk.model.events.ViewActionEvent
 import com.topjohnwu.magisk.model.navigation.MagiskNavigationEvent
@@ -27,6 +28,7 @@ abstract class MagiskFragment<ViewModel : MagiskViewModel, Binding : ViewDataBin
     override fun onEventDispatched(event: ViewEvent) {
         super.onEventDispatched(event)
         when (event) {
+            is BackPressEvent -> magiskActivity.onBackPressed()
             is MagiskNavigationEvent -> navigateTo(event)
             is ViewActionEvent -> event.action(requireActivity())
             is PermissionEvent -> magiskActivity.withPermissions(*event.permissions.toTypedArray()) {

app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskViewModel.kt

@@ -2,6 +2,7 @@ package com.topjohnwu.magisk.ui.base
 
 import android.app.Activity
 import com.skoumal.teanity.viewmodel.LoadingViewModel
+import com.topjohnwu.magisk.model.events.BackPressEvent
 import com.topjohnwu.magisk.model.events.PermissionEvent
 import com.topjohnwu.magisk.model.events.ViewActionEvent
 import com.topjohnwu.magisk.utils.Event
@@ -23,4 +24,7 @@ abstract class MagiskViewModel : LoadingViewModel(), Event.AutoListener {
         val subject = PublishSubject.create<Boolean>()
         return subject.doOnSubscribe { PermissionEvent(permissions.toList(), subject).publish() }
     }
+
+    fun back() = BackPressEvent().publish()
+
 }

app/src/main/java/com/topjohnwu/magisk/ui/flash/FlashActivity.java

@@ -1,274 +0,0 @@
-package com.topjohnwu.magisk.ui.flash;
-
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-import android.widget.LinearLayout;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.widget.Toolbar;
-import androidx.recyclerview.widget.RecyclerView;
-
-import com.topjohnwu.magisk.Const;
-import com.topjohnwu.magisk.R;
-import com.topjohnwu.magisk.model.adapters.StringListAdapter;
-import com.topjohnwu.magisk.tasks.FlashZip;
-import com.topjohnwu.magisk.tasks.MagiskInstaller;
-import com.topjohnwu.magisk.ui.base.BaseActivity;
-import com.topjohnwu.magisk.utils.RootUtils;
-import com.topjohnwu.magisk.utils.Utils;
-import com.topjohnwu.superuser.CallbackList;
-import com.topjohnwu.superuser.Shell;
-import com.topjohnwu.superuser.internal.UiThreadHandler;
-
-import java.io.File;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Calendar;
-import java.util.Collections;
-import java.util.List;
-import java.util.Locale;
-
-import butterknife.BindColor;
-import butterknife.BindView;
-import butterknife.OnClick;
-
-public class FlashActivity extends BaseActivity {
-
-    @BindView(R.id.toolbar) Toolbar toolbar;
-    @BindView(R.id.button_panel) LinearLayout buttonPanel;
-    @BindView(R.id.reboot) Button reboot;
-    @BindView(R.id.recyclerView) RecyclerView rv;
-    @BindColor(android.R.color.white) int white;
-
-    private List<String> console, logs;
-
-    @OnClick(R.id.reboot)
-    void reboot() {
-        RootUtils.reboot();
-    }
-
-    @OnClick(R.id.save_logs)
-    void saveLogs() {
-        runWithExternalRW(() -> {
-            Calendar now = Calendar.getInstance();
-            String filename = String.format(Locale.US,
-                    "magisk_install_log_%04d%02d%02d_%02d%02d%02d.log",
-                    now.get(Calendar.YEAR), now.get(Calendar.MONTH) + 1,
-                    now.get(Calendar.DAY_OF_MONTH), now.get(Calendar.HOUR_OF_DAY),
-                    now.get(Calendar.MINUTE), now.get(Calendar.SECOND));
-
-            File logFile = new File(Const.EXTERNAL_PATH, filename);
-            try (FileWriter writer = new FileWriter(logFile)) {
-                for (String s : logs) {
-                    writer.write(s);
-                    writer.write('\n');
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-                return;
-            }
-            Utils.toast(logFile.getPath(), Toast.LENGTH_LONG);
-        });
-    }
-
-    @OnClick(R.id.close)
-    public void close() {
-        finish();
-    }
-
-    @Override
-    public void onBackPressed() {
-        // Prevent user accidentally press back button
-    }
-
-    @Override
-    public int getDarkTheme() {
-        return R.style.AppTheme_NoDrawer_Dark;
-    }
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_flash);
-        new FlashActivity_ViewBinding(this);
-
-        setSupportActionBar(toolbar);
-        ActionBar ab = getSupportActionBar();
-        if (ab != null) {
-            ab.setTitle(R.string.flashing);
-        }
-        setFloating();
-        setFinishOnTouchOutside(false);
-        if (!Shell.rootAccess())
-            reboot.setVisibility(View.GONE);
-
-        logs = Collections.synchronizedList(new ArrayList<>());
-        console = new ConsoleList();
-        rv.setAdapter(new ConsoleAdapter());
-
-        Intent intent = getIntent();
-        Uri uri = intent.getData();
-
-        switch (intent.getStringExtra(Const.Key.FLASH_ACTION)) {
-            case Const.Value.FLASH_ZIP:
-                new FlashModule(uri).exec();
-                break;
-            case Const.Value.UNINSTALL:
-                new Uninstall(uri).exec();
-                break;
-            case Const.Value.FLASH_MAGISK:
-                new DirectInstall().exec();
-                break;
-            case Const.Value.FLASH_INACTIVE_SLOT:
-                new SecondSlot().exec();
-                break;
-            case Const.Value.PATCH_FILE:
-                new PatchFile(uri).exec();
-                break;
-        }
-    }
-
-    private class ConsoleAdapter extends StringListAdapter<ConsoleAdapter.ViewHolder> {
-
-        ConsoleAdapter() {
-            super(console, true);
-        }
-
-        @Override
-        protected int itemLayoutRes() {
-            return R.layout.list_item_console;
-        }
-
-        @NonNull
-        @Override
-        public ViewHolder createViewHolder(@NonNull View v) {
-            return new ViewHolder(v);
-        }
-
-        class ViewHolder extends StringListAdapter.ViewHolder {
-
-            public ViewHolder(@NonNull View itemView) {
-                super(itemView);
-                txt.setTextColor(white);
-            }
-
-            @Override
-            protected int textViewResId() {
-                return R.id.txt;
-            }
-        }
-    }
-
-    private class ConsoleList extends CallbackList<String> {
-
-        ConsoleList() {
-            super(new ArrayList<>());
-        }
-
-        private void updateUI() {
-            rv.getAdapter().notifyItemChanged(size() - 1);
-            rv.postDelayed(() -> rv.smoothScrollToPosition(size() - 1), 10);
-        }
-
-        @Override
-        public void onAddElement(String s) {
-            logs.add(s);
-            updateUI();
-        }
-
-        @Override
-        public String set(int i, String s) {
-            String ret = super.set(i, s);
-            UiThreadHandler.run(this::updateUI);
-            return ret;
-        }
-    }
-
-    private class FlashModule extends FlashZip {
-
-        FlashModule(Uri uri) {
-            super(uri, console, logs);
-        }
-
-        @Override
-        protected void onResult(boolean success) {
-            if (success) {
-                Utils.loadModules();
-            } else {
-                console.add("! Installation failed");
-                reboot.setVisibility(View.GONE);
-            }
-            buttonPanel.setVisibility(View.VISIBLE);
-        }
-    }
-
-    private class Uninstall extends FlashModule {
-
-        Uninstall(Uri uri) {
-            super(uri);
-        }
-
-        @Override
-        protected void onResult(boolean success) {
-            if (success)
-                UiThreadHandler.handler.postDelayed(Shell.su("pm uninstall " + getPackageName())::exec, 3000);
-            else
-                super.onResult(false);
-        }
-    }
-
-    private abstract class BaseInstaller extends MagiskInstaller {
-        BaseInstaller() {
-            super(console, logs);
-        }
-
-        @Override
-        protected void onResult(boolean success) {
-            if (success) {
-                console.add("- All done!");
-            } else {
-                Shell.sh("rm -rf " + installDir).submit();
-                console.add("! Installation failed");
-                reboot.setVisibility(View.GONE);
-            }
-            buttonPanel.setVisibility(View.VISIBLE);
-        }
-    }
-
-    private class DirectInstall extends BaseInstaller {
-
-        @Override
-        protected boolean operations() {
-            return findImage() && extractZip() && patchBoot() && flashBoot();
-        }
-    }
-
-    private class SecondSlot extends BaseInstaller {
-
-        @Override
-        protected boolean operations() {
-            return findSecondaryImage() && extractZip() && patchBoot() && flashBoot() && postOTA();
-        }
-    }
-
-    private class PatchFile extends BaseInstaller {
-
-        private Uri uri;
-
-        PatchFile(Uri u) {
-            uri = u;
-        }
-
-        @Override
-        protected boolean operations() {
-            return extractZip() && handleFile(uri) && patchBoot() && storeBoot();
-        }
-    }
-
-}

app/src/main/java/com/topjohnwu/magisk/ui/flash/FlashActivity.kt

@@ -0,0 +1,24 @@
+package com.topjohnwu.magisk.ui.flash
+
+import com.topjohnwu.magisk.Const
+import com.topjohnwu.magisk.R
+import com.topjohnwu.magisk.databinding.ActivityFlashBinding
+import com.topjohnwu.magisk.ui.base.MagiskActivity
+import org.koin.androidx.viewmodel.ext.android.viewModel
+import org.koin.core.parameter.parametersOf
+
+open class FlashActivity : MagiskActivity<FlashViewModel, ActivityFlashBinding>() {
+
+    override val layoutRes: Int = R.layout.activity_flash
+    override val viewModel: FlashViewModel by viewModel {
+        val uri = intent.data
+        val action = intent.getStringExtra(Const.Key.FLASH_ACTION) ?: let { finish();"" }
+        parametersOf(action, uri)
+    }
+
+    override fun onBackPressed() {
+        if (viewModel.loading) return
+        super.onBackPressed()
+    }
+
+}

app/src/main/java/com/topjohnwu/magisk/ui/flash/FlashViewModel.kt

@@ -0,0 +1,104 @@
+package com.topjohnwu.magisk.ui.flash
+
+import android.Manifest.permission.READ_EXTERNAL_STORAGE
+import android.Manifest.permission.WRITE_EXTERNAL_STORAGE
+import android.content.res.Resources
+import android.net.Uri
+import android.os.Handler
+import androidx.core.os.postDelayed
+import androidx.databinding.ObservableArrayList
+import com.skoumal.teanity.databinding.ComparableRvItem
+import com.skoumal.teanity.extensions.subscribeK
+import com.skoumal.teanity.util.DiffObservableList
+import com.skoumal.teanity.util.KObservableField
+import com.skoumal.teanity.viewevents.SnackbarEvent
+import com.topjohnwu.magisk.BR
+import com.topjohnwu.magisk.Const
+import com.topjohnwu.magisk.R
+import com.topjohnwu.magisk.model.entity.recycler.ConsoleRvItem
+import com.topjohnwu.magisk.model.flash.FlashResultListener
+import com.topjohnwu.magisk.model.flash.Flashing
+import com.topjohnwu.magisk.model.flash.Patching
+import com.topjohnwu.magisk.ui.base.MagiskViewModel
+import com.topjohnwu.magisk.utils.*
+import com.topjohnwu.superuser.Shell
+import me.tatarka.bindingcollectionadapter2.ItemBinding
+import java.io.File
+
+class FlashViewModel(
+    action: String,
+    uri: Uri?,
+    private val resources: Resources
+) : MagiskViewModel(), FlashResultListener {
+
+    val canShowReboot = Shell.rootAccess()
+    val showRestartTitle = KObservableField(false)
+
+    val behaviorText = KObservableField(resources.getString(R.string.flashing))
+
+    val items = DiffObservableList(ComparableRvItem.callback)
+    val itemBinding = ItemBinding.of<ComparableRvItem<*>> { itemBinding, _, item ->
+        item.bind(itemBinding)
+        itemBinding.bindExtra(BR.viewModel, this@FlashViewModel)
+    }
+
+    private val rawItems = ObservableArrayList<String>()
+
+    init {
+        rawItems.sendUpdatesTo(items) { it.map { ConsoleRvItem(it) } }
+
+        state = State.LOADING
+
+        val uri = uri ?: Uri.EMPTY
+        when (action) {
+            Const.Value.FLASH_ZIP -> Flashing
+                .Install(uri, rawItems, rawItems, this)
+                .exec()
+            Const.Value.UNINSTALL -> Flashing
+                .Uninstall(uri, rawItems, rawItems, this)
+                .exec()
+            Const.Value.FLASH_MAGISK -> Patching
+                .Direct(rawItems, rawItems, this)
+                .exec()
+            Const.Value.FLASH_INACTIVE_SLOT -> Patching
+                .SecondSlot(rawItems, rawItems, this)
+                .exec()
+            Const.Value.PATCH_FILE -> Patching
+                .File(uri, rawItems, rawItems, this)
+                .exec()
+        }
+    }
+
+    override fun onResult(isSuccess: Boolean) {
+        state = if (isSuccess) State.LOADED else State.LOADING_FAILED
+        behaviorText.value = when {
+            isSuccess -> resources.getString(R.string.done)
+            else -> resources.getString(R.string.failure)
+        }
+
+        if (isSuccess) {
+            Handler().postDelayed(500) {
+                showRestartTitle.value = true
+            }
+        }
+    }
+
+    fun savePressed() = withPermissions(READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE)
+        .map { now }
+        .map { it.toTime(timeFormatFull) }
+        .map { Const.MAGISK_INSTALL_LOG_FILENAME.format(it) }
+        .map { File(Const.EXTERNAL_PATH, it) }
+        .map { file ->
+            val log = items.filterIsInstance<ConsoleRvItem>()
+                .joinToString("\n") { it.item }
+            file.writeText(log)
+            file.path
+        }
+        .subscribeK { SnackbarEvent(it).publish() }
+        .add()
+
+    fun restartPressed() = RootUtils.reboot()
+
+    fun backPressed() = back()
+
+}

app/src/main/java/com/topjohnwu/magisk/utils/DataBindingAdapters.kt

@@ -1,6 +1,7 @@
 package com.topjohnwu.magisk.utils
 
 import android.view.View
+import android.widget.TextView
 import androidx.annotation.ColorInt
 import androidx.annotation.DrawableRes
 import androidx.appcompat.widget.AppCompatImageView
@@ -9,10 +10,15 @@ import androidx.databinding.BindingAdapter
 import androidx.databinding.InverseBindingAdapter
 import androidx.databinding.InverseBindingListener
 import androidx.drawerlayout.widget.DrawerLayout
+import androidx.interpolator.view.animation.FastOutSlowInInterpolator
 import androidx.viewpager.widget.ViewPager
 import com.google.android.material.navigation.NavigationView
+import com.skoumal.teanity.extensions.subscribeK
 import com.topjohnwu.magisk.R
 import com.topjohnwu.magisk.model.entity.state.IndeterminateState
+import io.reactivex.Observable
+import io.reactivex.disposables.Disposable
+import java.util.concurrent.TimeUnit
 
 
 @BindingAdapter("onNavigationClick")
@@ -80,4 +86,28 @@ fun setPositionChangedListener(view: ViewPager, listener: InverseBindingListener
             positionOffsetPixels: Int
         ) = listener.onChange()
     })
+}
+
+@BindingAdapter("invisibleScale")
+fun setInvisibleWithScale(view: View, isInvisible: Boolean) {
+    view.animate()
+        .scaleX(if (isInvisible) 0f else 1f)
+        .scaleY(if (isInvisible) 0f else 1f)
+        .setInterpolator(FastOutSlowInInterpolator())
+        .start()
+}
+
+@BindingAdapter("movieBehavior", "movieBehaviorText")
+fun setMovieBehavior(view: TextView, isMovieBehavior: Boolean, text: String) {
+    (view.tag as? Disposable)?.dispose()
+    if (isMovieBehavior) {
+        val observer = Observable
+            .interval(150, TimeUnit.MILLISECONDS)
+            .subscribeK {
+                view.text = text.replaceRandomWithSpecial()
+            }
+        view.tag = observer
+    } else {
+        view.text = text
+    }
 }

app/src/main/java/com/topjohnwu/magisk/utils/XList.kt

@@ -1,6 +1,49 @@
 package com.topjohnwu.magisk.utils
 
+import androidx.databinding.ObservableList
+import com.skoumal.teanity.extensions.subscribeK
+import com.skoumal.teanity.util.DiffObservableList
+import io.reactivex.disposables.Disposable
+
 fun <T> MutableList<T>.update(newList: List<T>) {
     clear()
     addAll(newList)
+}
+
+fun <T1, T2> ObservableList<T1>.sendUpdatesTo(
+    target: DiffObservableList<T2>,
+    mapper: (List<T1>) -> List<T2>
+) {
+    addOnListChangedCallback(object :
+        ObservableList.OnListChangedCallback<ObservableList<T1>>() {
+        override fun onChanged(sender: ObservableList<T1>?) {
+            updateAsync(sender ?: return)
+        }
+
+        override fun onItemRangeRemoved(sender: ObservableList<T1>?, p0: Int, p1: Int) {
+            updateAsync(sender ?: return)
+        }
+
+        override fun onItemRangeMoved(sender: ObservableList<T1>?, p0: Int, p1: Int, p2: Int) {
+            updateAsync(sender ?: return)
+        }
+
+        override fun onItemRangeInserted(sender: ObservableList<T1>?, p0: Int, p1: Int) {
+            updateAsync(sender ?: return)
+        }
+
+        override fun onItemRangeChanged(sender: ObservableList<T1>?, p0: Int, p1: Int) {
+            updateAsync(sender ?: return)
+        }
+
+        private var updater: Disposable? = null
+
+        private fun updateAsync(sender: List<T1>) {
+            updater?.dispose()
+            updater = sender.toSingle()
+                .map { mapper(it) }
+                .map { it to target.calculateDiff(it) }
+                .subscribeK { target.update(it.first, it.second) }
+        }
+    })
 }

app/src/main/java/com/topjohnwu/magisk/utils/XString.kt

@@ -0,0 +1,11 @@
+package com.topjohnwu.magisk.utils
+
+val specialChars = arrayOf('!', '@', '#', '$', '%', '&', '?')
+
+fun String.replaceRandomWithSpecial(): String {
+    var random: Char
+    do {
+        random = random()
+    } while (random == '.')
+    return replace(random, specialChars.random())
+}

app/src/main/java/com/topjohnwu/magisk/utils/XTime.kt

@@ -0,0 +1,18 @@
+package com.topjohnwu.magisk.utils
+
+import java.text.ParseException
+import java.text.SimpleDateFormat
+import java.util.*
+
+val now get() = System.currentTimeMillis()
+
+fun Long.toTime(format: SimpleDateFormat) = format.format(this).orEmpty()
+fun String.toTime(format: SimpleDateFormat) = try {
+    format.parse(this)?.time ?: -1
+} catch (e: ParseException) {
+    -1L
+}
+
+private val locale get() = Locale.getDefault()
+val timeFormatFull by lazy { SimpleDateFormat("YYYY/MM/DD_HH:mm:ss", locale) }
+val timeFormatStandard by lazy { SimpleDateFormat("YYYY-MM-DD'T'HH:mm:ss'Z'", locale) }

app/src/main/res/drawable/ic_back.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@color/colorText"
+        android:pathData="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" />
+</vector>

app/src/main/res/drawable/ic_restart.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000"
+        android:pathData="M12,4C14.1,4 16.1,4.8 17.6,6.3C20.7,9.4 20.7,14.5 17.6,17.6C15.8,19.5 13.3,20.2 10.9,19.9L11.4,17.9C13.1,18.1 14.9,17.5 16.2,16.2C18.5,13.9 18.5,10.1 16.2,7.7C15.1,6.6 13.5,6 12,6V10.6L7,5.6L12,0.6V4M6.3,17.6C3.7,15 3.3,11 5.1,7.9L6.6,9.4C5.5,11.6 5.9,14.4 7.8,16.2C8.3,16.7 8.9,17.1 9.6,17.4L9,19.4C8,19 7.1,18.4 6.3,17.6Z" />
+</vector>

app/src/main/res/layout/activity_flash.xml

@@ -1,61 +1,150 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_height="match_parent"
+    xmlns:tools="http://schemas.android.com/tools">
-    android:background="@color/flashing_background_color"
-    android:orientation="vertical">
 
-    <include layout="@layout/toolbar" />
+    <data>
 
-    <HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+        <variable
-        xmlns:app="http://schemas.android.com/apk/res-auto"
+            name="viewModel"
+            type="com.topjohnwu.magisk.ui.flash.FlashViewModel" />
+
+    </data>
+
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
         android:layout_width="match_parent"
-        android:layout_height="0dp"
+        android:layout_height="match_parent">
-        android:layout_weight="1">
 
-        <androidx.recyclerview.widget.RecyclerView
+        <com.google.android.material.appbar.AppBarLayout
-            android:id="@+id/recyclerView"
+            android:layout_width="match_parent"
-            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:theme="@style/AppBarLayoutTheme.Flashing">
+
+            <androidx.appcompat.widget.Toolbar
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                app:contentInsetLeft="0dp"
+                app:contentInsetStart="0dp"
+                app:popupTheme="@style/ToolbarPopupTheme.Flashing">
+
+                <androidx.constraintlayout.widget.ConstraintLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:animateLayoutChanges="true">
+
+                    <FrameLayout
+                        invisibleScale="@{viewModel.loading}"
+                        android:layout_width="0dp"
+                        android:layout_height="match_parent"
+                        android:background="?attr/selectableItemBackgroundBorderless"
+                        android:onClick="@{() -> viewModel.backPressed()}"
+                        app:layout_constraintDimensionRatio="1:1"
+                        app:layout_constraintLeft_toLeftOf="parent">
+
+                        <androidx.appcompat.widget.AppCompatImageView
+                            style="@style/Widget.Icon"
+                            android:layout_gravity="center"
+                            android:background="@android:color/transparent"
+                            app:srcCompat="@drawable/ic_back"
+                            app:tint="@android:color/white" />
+
+                    </FrameLayout>
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/Widget.Text.Emphasize"
+                        movieBehavior="@{viewModel.loading}"
+                        movieBehaviorText="@{viewModel.behaviorText}"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:fontFamily="monospace"
+                        android:textColor="@android:color/white"
+                        app:layout_constraintBottom_toBottomOf="parent"
+                        app:layout_constraintLeft_toLeftOf="parent"
+                        app:layout_constraintRight_toRightOf="parent"
+                        app:layout_constraintTop_toTopOf="parent"
+                        tools:text="Flashing..." />
+
+                    <FrameLayout
+                        invisibleScale="@{viewModel.loading}"
+                        android:layout_width="0dp"
+                        android:layout_height="match_parent"
+                        android:background="?attr/selectableItemBackgroundBorderless"
+                        android:onClick="@{() -> viewModel.savePressed()}"
+                        app:layout_constraintDimensionRatio="1:1"
+                        app:layout_constraintRight_toRightOf="parent">
+
+                        <androidx.appcompat.widget.AppCompatImageView
+                            style="@style/Widget.Icon"
+                            android:layout_gravity="center"
+                            android:background="@android:color/transparent"
+                            app:srcCompat="@drawable/ic_save"
+                            app:tint="@android:color/white" />
+
+                    </FrameLayout>
+
+                </androidx.constraintlayout.widget.ConstraintLayout>
+
+            </androidx.appcompat.widget.Toolbar>
+
+        </com.google.android.material.appbar.AppBarLayout>
+
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:paddingStart="8dp"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior">
-            android:paddingEnd="8dp"
-            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
 
-    </HorizontalScrollView>
+            <androidx.recyclerview.widget.RecyclerView
+                itemBinding="@{viewModel.itemBinding}"
+                items="@{viewModel.items}"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:orientation="vertical"
+                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+                tools:listitem="@layout/item_console" />
 
-    <LinearLayout
+            <com.google.android.material.card.MaterialCardView
-        android:id="@+id/button_panel"
+                invisibleScale="@{!viewModel.loaded || !viewModel.canShowReboot}"
-        style="?android:buttonStyle"
+                android:layout_width="wrap_content"
-        android:layout_width="match_parent"
+                android:layout_height="wrap_content"
-        android:layout_height="wrap_content"
+                android:layout_margin="@dimen/margin_generic"
-        android:layout_marginTop="10dp"
+                app:cardBackgroundColor="@color/colorSecondary"
-        android:orientation="horizontal"
+                app:cardCornerRadius="26dp"
-        android:visibility="gone">
+                app:cardPreventCornerOverlap="true"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintRight_toRightOf="parent">
 
-        <Button
+                <LinearLayout
-            android:id="@+id/close"
+                    android:layout_width="wrap_content"
-            style="?android:borderlessButtonStyle"
+                    android:layout_height="wrap_content"
-            android:layout_width="0dp"
+                    android:animateLayoutChanges="true"
-            android:layout_height="50dp"
+                    android:background="?attr/selectableItemBackground"
-            android:layout_weight="1"
+                    android:gravity="center"
-            android:text="@string/close" />
+                    android:onClick="@{() -> viewModel.restartPressed()}"
+                    android:padding="@dimen/margin_generic_half">
 
-        <Button
+                    <androidx.appcompat.widget.AppCompatImageView
-            android:id="@+id/save_logs"
+                        style="@style/Widget.Icon"
-            style="?android:borderlessButtonStyle"
+                        android:layout_width="wrap_content"
-            android:layout_width="0dp"
+                        android:layout_height="wrap_content"
-            android:layout_height="50dp"
+                        android:background="@android:color/transparent"
-            android:layout_weight="1"
+                        app:srcCompat="@drawable/ic_restart"
-            android:text="@string/menuSaveLog" />
+                        app:tint="@color/colorTextTinted" />
 
-        <Button
+                    <androidx.appcompat.widget.AppCompatTextView
-            android:id="@+id/reboot"
+                        style="@style/Widget.Text.Emphasize.Tinted"
-            style="?android:borderlessButtonStyle"
+                        gone="@{!viewModel.showRestartTitle}"
-            android:layout_width="0dp"
+                        android:layout_width="wrap_content"
-            android:layout_height="50dp"
+                        android:layout_height="wrap_content"
-            android:layout_weight="1"
+                        android:layout_marginLeft="@dimen/margin_generic_half"
-            android:text="@string/reboot" />
+                        android:paddingRight="@dimen/margin_generic_half"
+                        android:text="@string/reboot" />
 
-    </LinearLayout>
+                </LinearLayout>
 
-</LinearLayout>
+            </com.google.android.material.card.MaterialCardView>
+
+        </androidx.constraintlayout.widget.ConstraintLayout>
+
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</layout>

app/src/main/res/values/strings.xml

@@ -99,7 +99,9 @@
 
     <string name="dtbo_patched_title">DTBO was patched!</string>
     <string name="dtbo_patched_reboot">Magisk Manager has patched dtbo.img. Please reboot.</string>
-    <string name="flashing">Flashing</string>
+    <string name="flashing">Flashing…</string>
+    <string name="done">Done!</string>
+    <string name="failure">Failed</string>
     <string name="hide_manager_title">Hiding Magisk Manager…</string>
     <string name="hide_manager_fail_toast">Hide Magisk Manager failed.</string>
     <string name="open_link_failed_toast">No application found to open the link.</string>