Android 通过包名或类名启动APP

2019-11-09 15:17:54

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PRivate void doStartapplicationWithPackageName(String packagename) { // 通过包名获取此APP详细信息，包括Activities、services、versioncode、name等等 PackageInfo packageinfo = null; try { packageinfo = mContext.getPackageManager().getPackageInfo("你项目的包名", 0); Log.e("==包名==",packageinfo.toString()); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } if (packageinfo == null) { return; } // 创建一个类别为CATEGORY_LAUNCHER的该包名的Intent Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null); resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER); resolveIntent.setPackage(packageinfo.packageName); // 通过getPackageManager()的queryIntentActivities方法遍历 List<ResolveInfo> resolveinfoList = mContext.getPackageManager() .queryIntentActivities(resolveIntent, 0); ResolveInfo resolveinfo = resolveinfoList.iterator().next(); if (resolveinfo != null) { // packagename = 参数packname String packageName = resolveinfo.activityInfo.packageName; // 这个就是我们要找的该APP的LAUNCHER的Activity[组织形式：packagename.mainActivityname] String className = resolveinfo.activityInfo.name; // LAUNCHER Intent Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_LAUNCHER); // 设置ComponentName参数1:packagename参数2:MainActivity路径 ComponentName cn = new ComponentName(packageName, className); intent.setComponent(cn); mContext.startActivity(intent); } }

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