当系统存在多个launcher时,若没有设置默认launcher,开机启动后会弹出提示框,罗列所有launcher,用户选择并设置了默认launcher后,按home键以及以后重启都会进入默认的launcher。
现在,我希望系统能直接就进入我设定的launcher而不是弹出框后选择然后设置
网上大部分的做法就是修改
packages/apps/Provision/src/com/android/DefaultActivity.java
和
frameworks/base/services/java/com/android/server/pm/PackageManagerService.java
两个文件,给个相对比较好看一点的链接
我按照这个做不能达到预期的效果,
/添加内容
后期修改包名,发现开机自启动出现问题,然后弄了两天,终于差不多弄清楚了。果然,欠下的债迟早得还!
其实修改DefaultActivity.java就能够完成开机自启动,只是当时我的程序有问题,所以没有达到预期效果
当然下面修改ActivityManagerService.java也能完成开机自启动
这两者的区别在于DefaultActivity.java只是在第一次启动时执行,如果修改了默认launcher后不可恢复
ActivityManagerService.java在每次启动时执行,每次都默认启动设定的launcher,当然,如果设定的launcher存在的话,设置其他的launcher为默认会无效,因为重新启动时setDefaultLauncher()会将当前默认launcher清除。只有在卸载了设定默认启动的launcher后才能设置其他launcher为默认启动.
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修改多次搜索关键字,得到另一篇文章,大致看了下,感觉不会有效,但是已经绝望了就试了试,竟然解决了问题
这篇文章有借鉴之处,直接使用时会发现有些字段是上下文中没有的,故写下此文记录一下。
修改文件
frameworks\base\services\java\com\android\server\am\ActivityManagerService.java
添加一个方法:
private void setDefaultLauncher() { // get default component String packageName = "com.coship.factorytest";//默认launcher包名 String className = "com.coship.factorytest.MainActivity";默认launcher入口 IPackageManager pm = ActivityThread.getPackageManager(); //判断指定的launcher是否存在 if(hasApkInstalled(packageName)) { Slog.i(TAG, "defautl packageName = " + packageName + ", default className = " + className); //清除当前默认launcher ArrayListintentList = new ArrayList (); ArrayList cnList = new ArrayList (); mContext.getPackageManager().getPreferredActivities(intentList, cnList, null); IntentFilter dhIF = null; for(int i = 0; i < cnList.size(); i++) { dhIF = intentList.get(i); if(dhIF.hasAction(Intent.ACTION_MAIN) && dhIF.hasCategory(Intent.CATEGORY_HOME)) { mContext.getPackageManager().clearPackagePreferredActivities(cnList.get(i).getPackageName()); } } //获取所有launcher activity Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_HOME); List list = new ArrayList (); try { list = pm.queryIntentActivities(intent, intent.resolveTypeIfNeeded(mContext.getContentResolver()), PackageManager.MATCH_DEFAULT_ONLY); }catch (RemoteException e) { throw new RuntimeException("Package manager has died", e); } // get all components and the best match IntentFilter filter = new IntentFilter(); filter.addAction(Intent.ACTION_MAIN); filter.addCategory(Intent.CATEGORY_HOME); filter.addCategory(Intent.CATEGORY_DEFAULT); final int N = list.size(); Slog.d(TAG, "N:::::hyhyhyhy:::: = " + N); //设置默认launcher ComponentName launcher = new ComponentName(packageName, className); ComponentName[] set = new ComponentName[N]; int defaultMatch = 0; for (int i = 0; i < N; i++) { ResolveInfo r = list.get(i); set[i] = new ComponentName(r.activityInfo.packageName, r.activityInfo.name); Slog.d(TAG, "r.activityInfo.packageName:::::hyhyhyhy:::: = " + r.activityInfo.packageName); Slog.d(TAG, "r.activityInfo.name:::::hyhyhyhy:::: = " + r.activityInfo.name); if(launcher.getClassName().equals(r.activityInfo.name)) { defaultMatch = r.match; } } try { pm.addPreferredActivity(filter, defaultMatch, set, launcher); } catch (RemoteException e) { throw new RuntimeException("com.coship.factorytest.MainActivity : Package manager has died", e); } }//end if } private static boolean hasApkInstalled(String pkgname) { try { mSelf.mContext.getPackageManager().getPackageInfo(pkgname,0); } catch(Exception e) { Slog.d(TAG, "PackageManager.NameNotFoundException: = " + e.getMessage()); return false; } return true; }
然后在ActivityManagerService类中的
boolean startHomeActivityLocked()
方法第一行调用上面添加的
setDefaultLauncher()
boolean startHomeActivityLocked() { if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL && mTopAction == null) { // We are running in factory test mode, but unable to find // the factory test app, so just sit around displaying the // error message and don't try to start anything. return false; }/// setDefaultLauncher();/// Intent intent = new Intent( mTopAction, mTopData != null ? Uri.parse(mTopData) : null); intent.setComponent(mTopComponent); if (mFactoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { intent.addCategory(Intent.CATEGORY_HOME); } ActivityInfo aInfo = intent.resolveActivityInfo(mContext.getPackageManager(), STOCK_PM_FLAGS); if (aInfo != null) { intent.setComponent(new ComponentName( aInfo.applicationInfo.packageName, aInfo.name)); // Don't do this if the home app is currently being // instrumented. Proce***ecord app = getProce***ecordLocked(aInfo.processName, aInfo.applicationInfo.uid); if (app == null || app.instrumentationClass == null) { intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); mMainStack.startActivityLocked(null, intent, null, null, 0, aInfo, null, null, 0, 0, 0, false, false, null); } } return true; }
添加后的方法全部内容如上,重新编译android,烧录,开机就能够自动进入自定义的launcher
可以通过系统设置取消该launcher的默认设置,取消之后按home键会弹出launcher选择提示框
frameworks\base\core\java\com\android\internal\app\ResolverActivity.java
ResolverActivity类就是选择打开方式的弹出框