Android 8.1 预置应用开机自启动

近来接到项目需求，要求将预置应用设置为开机自启动，具体修改参照如下：

方法一：

/packages/apps/Launcher3/src/com/android/launcher3/model/LoaderTask.java

    private void loadWorkspace() {if (LauncherAppState.PROFILE_STARTUP) {Trace.beginSection("Loading Workspace");}final Context context = mApp.getContext();final ContentResolver contentResolver = context.getContentResolver();final PackageManagerHelper pmHelper = new PackageManagerHelper(context);final boolean isSafeMode = pmHelper.isSafeMode();final boolean isSdCardReady = Utilities.isBootCompleted();final MultiHashMap<UserHandle, String> pendingPackages = new MultiHashMap<>();boolean clearDb = false;try {ImportDataTask.performImportIfPossible(context);} catch (Exception e) {// Migration failed. Clear workspace.clearDb = true;}
+        Intent startIntent = new Intent();
+        startIntent.setClassName("uAppPackageName","uAppActivityName");
+        context.startActivity(startIntent);if (!clearDb && GridSizeMigrationTask.ENABLED &&!GridSizeMigrationTask.migrateGridIfNeeded(context)) {// Migration failed. Clear workspace.clearDb = true;}

方法二：

/frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java

        mAnrManager.writeEvent(AnrManager.EVENT_BOOT_COMPLETED);
+        Intent startIntent = new Intent();
+        startIntent = mContext.getPackageManager().getLaunchIntentForPackage("uAppPackageName");
+        ifstartIntent != null){
+            mContext.startActivity(startIntent);
+        } else {
+            android.util.Log.i("jc", "getLaunchIntentForPackage failed" );
+        }

重新编译验证，修改生效，预置应用已设置为开机自启动