Android7.0中如何使用MTK设置默认桌面

这篇文章主要讲解了"Android7.0中如何使用MTK设置默认桌面"，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习"Android7.0中如何使用MTK设置默认桌面"吧！

1.找到安装应用的文件

frameworks\base\services\core\java\com\android\server\pm\PackageManagerService.java try {   PackageParser.Package newPackage = scanPackageTracedLI(pkg, policyFlags, scanFlags,     System.currentTimeMillis(), user);   updateSettingsLI(newPackage, installerPackageName, null, res, user);   if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {      prepareAppDataAfterInstallLIF(newPackage);  Log.d("yh", "pkgName " +pkgName); // 由于客户的应用保密 这里使用点心桌面的包名---com.dianxinos.dxhome if (pkgName.equals("com.dianxinos.dxhome")){  //发送广播  Intent intent = new  Intent("android.intent.action.UPDATE_LANUCHER_APPS");  mContext.sendBroadcast(intent); }    //------------------------   } else {    // Remove package from internal structures, but keep around any    // data that might have already existed    deletePackageLIF(pkgName, UserHandle.ALL, false, null,      PackageManager.DELETE_KEEP_DATA, res.removedInfo, true, null);   }  } catch (PackageManagerException e) {   res.setError("Package couldn't be installed in " + pkg.codePath, e);  }  Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER); }

2.由于设置默认桌面时，是在Settings中设置的所以广播接收者在settings中添加并设置默认桌面（添加文件-packages\apps\Settings\src\com\android\settings下-UpdateLanucherReceiver.java）

package com.android.settings;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.ComponentName;import android.content.IntentFilter;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import java.util.ArrayList;import android.util.Log;import android.content.pm.ActivityInfo;import java.util.List;public class UpdateLanucherReceiver extends BroadcastReceiver {  public UpdateLanucherReceiver() { }  @Override public void onReceive(Context context, Intent intent) {  if (intent.getAction().equals("android.intent.action.UPDATE_LANUCHER_APPS")) { Log.e("yhyh" ," onReceive");  final PackageManager mPm = context.getPackageManager();   // 点心桌面的包名类名 com.dianxinos.dxhome / com.nd.hilauncherdev.launcher.Launcher设置默认桌面 ComponentName DefaultLauncher=new ComponentName(" com.dianxinos.dxhome",     "com.nd.hilauncherdev.launcher.Launcher");   ArrayList homeActivities = new ArrayList();   ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities);   ComponentName[]mHomeComponentSet = new ComponentName[homeActivities.size()];   for (int i = 0; i < homeActivities.size(); i++) {    final ResolveInfo candidate = homeActivities.get(i);    Log.e("yhyh","homeActivitie: candidate = "+candidate);    final ActivityInfo activityInfo= candidate.activityInfo;    ComponentName activityName = new ComponentName(activityInfo.packageName, activityInfo.name);    mHomeComponentSet[i] = activityName;   }   IntentFilter mHomeFilter = new IntentFilter(Intent.ACTION_MAIN);   mHomeFilter.addCategory(Intent.CATEGORY_HOME);   mHomeFilter.addCategory(Intent.CATEGORY_DEFAULT);   ListActivities=new ArrayList();   mPm.replacePreferredActivity(mHomeFilter, IntentFilter.MATCH_CATEGORY_EMPTY,mHomeComponentSet, DefaultLauncher);    //刷新桌面  Intent intent2 = new Intent(Intent.ACTION_MAIN);   intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);   intent2.addCategory(Intent.CATEGORY_HOME);   context.startActivity(intent2); } }}

3.packages\apps\Settings\AndroidManifest.xml

感谢各位的阅读，以上就是"Android7.0中如何使用MTK设置默认桌面"的内容了，经过本文的学习后，相信大家对Android7.0中如何使用MTK设置默认桌面这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是，小编将为大家推送更多相关知识点的文章，欢迎关注！