[英]Permission Requests causes infinite loop in OnResume
In API >= 23, we are required to ask users for permission at run-time. 在API> = 23中,我们需要在运行时向用户请求权限。 But for some reason, the permissions are causing onResume to be called infinitely. 但由于某种原因,权限导致onResume被无限调用。 What causes this? 是什么导致这个?
@Override
protected void onResume() {
super.onResume();
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.ANYPERMISSION},1);
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
}
When you show dialog of permission question, Acitvity goes to onPause
, and when dialog hides, it goes to onResume
. 当您显示权限问题对话框时,Acitvity将转到onPause
,当对话框隐藏时,它将转到onResume
。 You have to change place of asking of permission. 你必须改变要求许可的地方。
A small piece of code for permissions to complete previous response :) 一小段代码,用于完成先前响应的权限:)
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (Build.VERSION.SDK_INT >= 23)
ensurePermissions(
Manifest.permission.GET_ACCOUNTS,
Manifest.permission.WRITE_EXTERNAL_STORAGE
);
}
and: 和:
@TargetApi(23)
private void ensurePermissions(String... permissions) {
boolean request = false;
for (String permission : permissions)
if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
request = true;
break;
}
if (request) {
requestPermissions(permissions, REQUEST_CODE_PERMISSION);
}
}
first, your app needs to check whether you have been granted a particular permission before asking runtime permission. 首先,您的应用需要在询问运行时权限之前检查您是否已被授予特定权限。
if (ContextCompat.checkSelfPermission(this.getApplicationContext(),
android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
} else {
ActivityCompat.requestPermissions(this, new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_CODE);
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.