Android 动态权限获取

最新推荐文章于 2023-03-02 20:09:27 发布

原创最新推荐文章于 2023-03-02 20:09:27 发布 · 383 阅读

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文章标签：

#读写 #权限 #动态权限

1. 定义需要动态获取的权限(下面是以读写外部存储卡权限为例)

private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static String[] PERMISSIONS_STORAGE = {
   Manifest.permission.READ_EXTERNAL_STORAGE,
   Manifest.permission.WRITE_EXTERNAL_STORAGE
};

2. 手动申请权限

private void verifyStoragmissions(Activity activity) {
    int permission1 = ActivityCompat.checkSelfPermission(activity,"android.permission.READ_EXTERNAL_STORAGE");
    int permission2 = ActivityCompat.checkSelfPermission(activity,"android.permission.WRITE_EXTERNAL_STORAGE");
    if (permission1 != PackageManager.PERMISSION_GRANTED || permission2 != PackageManager.PERMISSION_GRANTED){
        ActivityCompat.requestPermissions(activity, PERMISSIONS_STORAGE, REQUEST_EXTERNAL_STORAGE);
    }
}

3. 判断用户是否授权权限，重写onRequestPermissionsResult函数接收用户授权情况

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {

int n = grantResults.length;
if (n < 1)
   return ;
for (int i = 0; i < n; i++){
    if (PackageManager.PERMISSION_GRANTED != grantResults[i]){ //用户未授予权限定义中对应的权限
       //未授权，不能执行需要权限的操作。
    }else{
       //已授权可以执行相应操作
    }
}
}