应用程序请求未显示 [英] App requests aren't showing up
问题描述
我的应用中有地图活动。我正在尝试请求它的位置权限，但请求权限没有显示。我不知道为什么......
I have a map activity in my app. I'm trying to request location permissions on it, but the request permissions are not showing up. I have no idea why...
这是我的完整代码：
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private static final String FIREBASE_URL="https://****.firebaseio.com/";
private Firebase firebaseRef;
private LocationManager locationManager;
private GoogleMap mMap;
SupportMapFragment mapFrag;
boolean bPermissionGranted;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps2);
Firebase.setAndroidContext(this);
firebaseRef = new Firebase(FIREBASE_URL);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
setUpMapIfNeeded();
}
private void setUpMapIfNeeded() {
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
if (mMap != null) {
CameraUpdate center = CameraUpdateFactory.newLatLng(new LatLng(32.065483, 34.824550));
CameraUpdate zoom = CameraUpdateFactory.zoomTo(10);
mMap.moveCamera(center);
mMap.animateCamera(zoom);
}
}
}
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
public void checkLocationPermission() {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (shouldShowRequestPermissionRationale(Manifest.permission.ACCESS_FINE_LOCATION)) {
showMessageOKCancel("You need to accept location permissions for using these services!,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
{
Toast.makeText(MapsActivity.this, "came here 1", Toast.LENGTH_SHORT).show();
requestPermissions(new String[]{Manifest.permission.WRITE_CONTACTS},
MY_PERMISSIONS_REQUEST_LOCATION);
}
}
});
return;
}
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
Toast.makeText(MapsActivity.this, "came here 2", Toast.LENGTH_SHORT).show();
return;
}
else
{
mMap.setMyLocationEnabled(true);
Toast.makeText(MapsActivity.this, "came here 3", Toast.LENGTH_SHORT).show();
}
}
}
private void showMessageOKCancel(String message, DialogInterface.OnClickListener okListener) {
new AlertDialog.Builder(MapsActivity.this)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", null)
.create()
.show();
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_LOCATION: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay!
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
mMap.setMyLocationEnabled(true);
}
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
Toast.makeText(this, "Permission Denied", Toast.LENGTH_LONG).show();
}
return;
}
}
}
@Override
public void onMapReady(final GoogleMap googleMap) {
mMap=googleMap;
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
checkLocationPermission();
}
最后，吐司来了这里2出现。我想这是因为请求没有显示出来。
除了这些行之外，我是否需要在清单中写一些东西？：
In the end, the toast "came here 2 showing up". I guess it is because the requests are not showing up. Do I need to write something in the manifest except of these line?:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
也许我需要写一些东西来使用这些权限？
Maybe I need to write something to use these permissions?
再看一下logcat，我发现这个日志 I / Choreographer：跳过了46帧！应用程序可能在其主线程上做了太多工作。
After looking again in the logcat, I've found this log I/Choreographer: Skipped 46 frames! The application may be doing too much work on its main thread.
这是什么意思？
推荐答案
在这个问题上花了好几天之后，我发现请求权限没有显示的原因是因为TabHost。
After spending days about this issue, I found out that the reason that the request permissions are not showing up is because of the TabHost.
我试图从一个Map活动中请求权限，这是MainActivity中TabHost的一部分。现在我明白不可能从TabHost中的活动请求权限。
I've tried to request permissions from a Map Activity which was a part of TabHost in a MainActivity. Now I understood that it is impossible requesting permissions from an activity in TabHost.
在我将请求权限代码从MapActivity移动到MainActivity之后，它运行了。
After I've moved the request permissions code from the MapActivity to the MainActivity, It worked.
这篇关于应用程序请求未显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
