Android權限判斷checkPermission

判斷本程序是否擁有某權限的方法：

private static final String EXTERNAL_STORAGE_PERMISSION = "android.permission.WRITE_EXTERNAL_STORAGE";

private static boolean hasExternalStoragePermission(Context context) {
        int perm = context.checkCallingOrSelfPermission(EXTERNAL_STORAGE_PERMISSION);
        return perm == PackageManager.PERMISSION_GRANTED;
    }

private static final String EXTERNAL_STORAGE_PERMISSION = "android.permission.WRITE_EXTERNAL_STORAGE";

private static boolean hasExternalStoragePermission(Context context) {
		int perm = context.checkCallingOrSelfPermission(EXTERNAL_STORAGE_PERMISSION);
		return perm == PackageManager.PERMISSION_GRANTED;
	}

判斷某個程序是否擁有某權限的方法：

private static boolean checkPermission(Context context, String permName, String pkgName){
        PackageManager pm = context.getPackageManager();
        if(PackageManager.PERMISSION_GRANTED == pm.checkPermission(permName, pkgName)){
            System.out.println(pkgName + "has permission : " + permName);
            return true;
        }else{
            //PackageManager.PERMISSION_DENIED == pm.checkPermission(permName, pkgName)
            System.out.println(pkgName + "not has permission : " + permName);
            return false;
        }
    }

private static boolean checkPermission(Context context, String permName, String pkgName){
		PackageManager pm = context.getPackageManager();
		if(PackageManager.PERMISSION_GRANTED == pm.checkPermission(permName, pkgName)){
			System.out.println(pkgName + "has permission : " + permName);
			return true;
		}else{
			//PackageManager.PERMISSION_DENIED == pm.checkPermission(permName, pkgName)
			System.out.println(pkgName + "not has permission : " + permName);
			return false;
		}
	}

來自為知筆記(Wiz)