文件管理器闪退，重启不可恢复

一、背景

最近测试设置存储，发现拷贝、复制，必现设置闪退报错，而且不可以恢复

二、log 查看

01-10 16:35:21.428 14609 14609 D AndroidRuntime: Shutting down VM

01-10 16:35:21.428 14609 14609 E AndroidRuntime: FATAL EXCEPTION: main

01-10 16:35:21.428 14609 14609 E AndroidRuntime: Process: com.android.documentsui, PID: 14609

01-10 16:35:21.428 14609 14609 E AndroidRuntime: java.lang.IllegalStateException: Launcher activity not found for package com.android.documentsui

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.Parcel.createException(Parcel.java:1958)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.Parcel.readException(Parcel.java:1918)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.Parcel.readException(Parcel.java:1868)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.content.pm.IShortcutService$Stub$Proxy.setDynamicShortcuts(IShortcutService.java:423)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.content.pm.ShortcutManager.setDynamicShortcuts(ShortcutManager.java:92)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.documentsui.ShortcutsUpdater.update(ShortcutsUpdater.java:60)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.documentsui.files.-$$Lambda$fW6dnoH4q61dZKfQpx8CIejn0Qo.accept(Unknown Source:4)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.documentsui.sidebar.RootsFragment$5.onLoadFinished(RootsFragment.java:236)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.documentsui.sidebar.RootsFragment$5.onLoadFinished(RootsFragment.java:212)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.app.LoaderManagerImpl$LoaderInfo.callOnLoadFinished(LoaderManager.java:497)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.app.LoaderManagerImpl$LoaderInfo.onLoadComplete(LoaderManager.java:465)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.content.Loader.deliverResult(Loader.java:157)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.documentsui.roots.RootsLoader.deliverResult(RootsLoader.java:67)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.documentsui.roots.RootsLoader.deliverResult(RootsLoader.java:31)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.content.AsyncTaskLoader.dispatchOnLoadComplete(AsyncTaskLoader.java:272)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.content.AsyncTaskLoader$LoadTask.onPostExecute(AsyncTaskLoader.java:96)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.AsyncTask.finish(AsyncTask.java:695)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.AsyncTask.access$600(AsyncTask.java:180)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.Looper.loop(Looper.java:193)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6718)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: Caused by: android.os.RemoteException: Remote stack trace:

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.internal.util.Preconditions.checkState(Preconditions.java:163)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.server.pm.ShortcutService.fillInDefaultActivity(ShortcutService.java:1713)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at com.android.server.pm.ShortcutService.setDynamicShortcuts(ShortcutService.java:1755)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.content.pm.IShortcutService$Stub.onTransact(IShortcutService.java:63)

01-10 16:35:21.428 14609 14609 E AndroidRuntime: at android.os.Binder.execTransact(Binder.java:731)

01-10 16:35:21.428 14609 14609 E AndroidRuntime:

01-10 16:35:21.431 497 943 W ActivityManager: Force finishing activity com.android.documentsui/.files.FilesActivity

三、分析过程

通过log发现 Launcher activity not found for package com.android.documentsui

查看代码发现 1 AndroidManifest.xml 的launcher 中的图标被干掉了，导致在拷贝复制的，找不到这个activity

恢复加入即可。

<activity-alias

android:name=".LauncherActivity"

android:targetActivity=".files.LauncherActivity"

android:enabled="@bool/is_launcher_enabled"

android:label="@string/launcher_label"

android:icon="@drawable/launcher_icon" >

<intent-filter>

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity-alias>

四、解决方案

为了，兼顾文件管理器正常，而且保留这个图标去掉，

继续去掉这个图标，我们可以在launcher3 中去操作，在

package\apps\Launcher2\src\com\android\launcher3\model\LoaderTask.java 操作

在这个文件的这个函数里面操作即可

private void loadAllApps() {

final long loadTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;

final List<UserHandle> profiles = mUserManager.getUserProfiles();

// Clear the list of apps

mBgAllAppsList.clear();

for (UserHandle user : profiles) {

// Query for the set of apps

final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;

final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);

if (DEBUG_LOADERS) {

Log.d(TAG, "getActivityList took "

+ (SystemClock.uptimeMillis()-qiaTime) + "ms for user " + user);

Log.d(TAG, "getActivityList got " + apps.size() + " apps for user " + user);

}

// Fail if we don't have any apps

// TODO: Fix this. Only fail for the current user.

if (apps == null || apps.isEmpty()) {

return;

}

boolean quietMode = mUserManager.isQuietModeEnabled(user);

// Create the ApplicationInfos

for (int i = 0; i < apps.size(); i++) {

LauncherActivityInfo app = apps.get(i);

// This builds the icon bitmaps.

mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);

}

ManagedProfileHeuristic.onAllAppsLoaded(mApp.getContext(), apps, user);

}

五、搞定。

文件管理器闪退，重启不可恢复

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