Android 查询及获取应用程序 Package 及 Acticity 名称的方法_android 查看当前应用的包名

<uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"/>

   
 public boolean isTargetPackageName(Context context, String packageName){
        PackageManager packageManager = context.getPackageManager();
        try {
            packageManager.getApplicationInfo(packageName, 0);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return false;
    }
 

    public List<String> getAllApplicationPackages(Context context) {
        //1. 创建泛型为String类型的List类型对象packageList,用于缓存所有获取到的应用包名
        List<String> packageList = new ArrayList<String>();
        try{
            //2. 通过getPackageManager()获取PackageManager类型的对象manager
            PackageManager manager = context.getPackageManager();
            //3. 通过调用manager.getInstalledPackages()获取的泛型为PackageInfo类型的List类型对象packageInfoList
            List<PackageInfo> packageInfoList = manager.getInstalledPackages(0);
            //4. 创建PackageInfo类型的变量info，用于接收packageInfoList对象中存储的PackageInfo类型数据
            //，然后通过for循环遍历info
            for (PackageInfo info : packageInfoList) {
                //5.将从info中获取到的应用包名packageName缓存到packageList对象中
                packageList.add(info.packageName);
                Log.i("MainActivity", "----------packageName = " + info.packageName);
            }
        } catch (Exception e){
            e.printStackTrace();
        }
        return packageList;
    }