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當系統存在多個launcher時,若沒有設置默認launcher,開機啟動后會彈出提示框,羅列所有launcher,用戶選擇并設置了默認launcher后,按home鍵以及以后重啟都會進入默認的launcher。
現在,我希望系統能直接就進入我設定的launcher而不是彈出框后選擇然后設置
網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
兩個文件,給個相對比較好看一點的鏈接http://blog.csdn.net/z_guijin/article/details/8964890
我按照這個做不能達到預期的效果,
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后期修改包名,發現開機自啟動出現問題,然后弄了兩天,終于差不多弄清楚了。果然,欠下的債遲早得還!
其實修改DefaultActivity.java就能夠完成開機自啟動,只是當時我的程序有問題,所以沒有達到預期效果
當然下面修改ActivityManagerService.java也能完成開機自啟動
這兩者的區別在于
DefaultActivity.java只是在第一次啟動時執行,如果修改了默認launcher后不可恢復
ActivityManagerService.java在每次啟動時執行,每次都默認啟動設定的launcher,當然,如果設定的launcher存在的話,設置其他的launcher為默認會無效,因為重新啟動時setDefaultLauncher()會將當前默認launcher清除。只有在卸載了設定默認啟動的launcher后才能設置其他launcher為默認啟動.
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修改多次搜索關鍵字,得到另一篇文章,大致看了下,感覺不會有效,但是已經絕望了就試了試,竟然解決了問題http://blog.csdn.net/jia4525036/article/details/18036765
這篇文章有借鑒之處,直接使用時會發現有些字段是上下文中沒有的,故寫下此文記錄一下。
修改文件
frameworks\base\services\java\com\android\server\am\ActivityManagerService.java
添加一個方法:
private void setDefaultLauncher() { // get default component String packageName = "com.coship.factorytest";//默認launcher包名 String className = "com.coship.factorytest.MainActivity";////默認launcher入口 IPackageManager pm = ActivityThread.getPackageManager(); //判斷指定的launcher是否存在 if(hasApkInstalled(packageName)) { Slog.i(TAG, "defautl packageName = " + packageName + ", default className = " + className); //清除當前默認launcher ArrayList<IntentFilter> intentList = new ArrayList<IntentFilter>(); ArrayList<ComponentName> cnList = new ArrayList<ComponentName>(); 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()); } } //獲取所有launcher activity Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_HOME); List<ResolveInfo> list = new ArrayList<ResolveInfo>(); 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); //設置默認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類中的
boolean startHomeActivityLocked()
方法第一行調用上面添加的
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; }
添加后的方法全部內容如上,重新編譯android,燒錄,開機就能夠自動進入自定義的launcher
可以通過系統設置取消該launcher的默認設置,取消之后按home鍵會彈出launcher選擇提示框
frameworks\base\core\java\com\android\internal\app\ResolverActivity.java
ResolverActivity類就是選擇打開方式的彈出框
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