I am trying to ask for permission from user but getting the black screen only and also lacking the app. Is their any wayout to update the same so I can get the permission from user.
MainActivity.this
public class MainActivity extends AppCompatActivity {
private BottomNavigationView mBottomNavigationView;
private ActionBar toolbar;
public static final int PERMISSION_FOR_INTERNET = 200;
DatabaseHelperClass dbClass;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = getSupportActionBar();
toolbar.hide();
checkforPermissions();
CheckFirstTimeLoad();
mBottomNavigationView = (BottomNavigationView) findViewById(R.id.bottomNavigationView);
mBottomNavigationView.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
CallFragment(new HomeFragment());
}
public void checkforPermissions(){
String[] permission = {Manifest.permission.INTERNET,
Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};
if (ContextCompat.checkSelfPermission(this.getApplicationContext(),
permission[0]) == PackageManager.PERMISSION_GRANTED
&& ContextCompat.checkSelfPermission(this.getApplicationContext(),
permission[1]) == PackageManager.PERMISSION_GRANTED
&& ContextCompat.checkSelfPermission(this.getApplicationContext(),
permission[2]) == PackageManager.PERMISSION_GRANTED){
} else {
checkforPermissions();
}
}
Please check the Manifest File. However, I added the permission code. AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.bhagatsoftinc.nearby">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher_main"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_main_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity"></activity>
<activity android:name=".WelcomeActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="AIzaSyDZOy6D7hVvtqu6iZy3hP395vZLSYbW1HI"/>
</application>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
First of all this
<uses-permission
android:name="android.permission.INTERNET" />
is a normal permission, you do not need to ask it at runtime just declare it in manifest , it will be granted automatically
Now here is the example code to ask location permissions
Step 1:-
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
Step 2:-
in onCreate() do this
public static final int REQUEST_ID_MULTIPLE_PERMISSIONS = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// rest of the code here
checkAndroidVersion();
}
Step 3:-
this method checkAndroidVersion();
public void checkAndroidVersion() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (checkAndRequestPermissions()) {
// do your work here
} else
{
}
} else {
// do your work here
}
}
Step 4:-
this method
checkAndRequestPermissions()
public boolean checkAndRequestPermissions() {
int location = ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION);
List<String> listPermissionsNeeded = new ArrayList<>();
if (location != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(Manifest.permission.ACCESS_FINE_LOCATION);
}
if (!listPermissionsNeeded.isEmpty()) {
ActivityCompat.requestPermissions(MainActivity.this, listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]), REQUEST_ID_MULTIPLE_PERMISSIONS);
return false;
}
return true;
}
Step 5:-
Handle onRequestPermission() method
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
Log.d("in main on request", "Permission callback called-------");
switch (requestCode) {
case REQUEST_ID_MULTIPLE_PERMISSIONS: {
Map<String, Integer> perms = new HashMap<>();
perms.put(Manifest.permission.ACCESS_FINE_LOCATION, PackageManager.PERMISSION_GRANTED);
// Fill with actual results from user
if (grantResults.length > 0) {
for (int i = 0; i < permissions.length; i++)
perms.put(permissions[i], grantResults[i]);
// Check for both permissions
if (perms.get(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
Log.d("in main on request", "location services permission granted");
// do your work here
} else {
Log.d("in fragment on request", "Some permissions are not granted ask again ");
//permission is denied (this is the first time, when "never ask again" is not checked) so ask again explaining the usage of permission
// // shouldShowRequestPermissionRationale will return true
//show the dialog or snackbar saying its necessary and try again otherwise proceed with setup.
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION)) {
showDialogOK("Location services services are required for this app",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case DialogInterface.BUTTON_POSITIVE:
checkAndRequestPermissions();
break;
case DialogInterface.BUTTON_NEGATIVE:
// proceed with logic by disabling the related features or quit the app.
break;
}
}
});
}
//permission is denied (and never ask again is checked)
//shouldShowRequestPermissionRationale will return false
else {
Toast.makeText(MainActivity.this, "Go to settings and enable permissions", Toast.LENGTH_LONG)
.show();
// //proceed with logic by disabling the related features or quit the app.
}
}
}
}
}
}
public void showDialogOK(String message, DialogInterface.OnClickListener okListener) {
new AlertDialog.Builder(MainActivity.this)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", okListener)
.create()
.show();
}