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。
<!-- Preserve original launcher activity from Nougat. -->
<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>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data android:name="android.app.shortcuts" android:resource="@xml/shortcuts" />
</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。
