Basic error in AndroidManifest.xml for SMS receiving permission

Question

I know that this has been asked a dozen times before, but I still get the permission error with this xml config. I have scoured the other responses on this. I am using API level 23. Can someone please point out the mistake ? The error is the obvious:

09-12 09:13:40.016 1295-1309/? W/BroadcastQueue﹕ Permission Denial: receiving Intent { act=android.provider.Telephony.SMS_RECEIVED flg=0x8000010 (has extras) } to com.example.richard.simplesmstoast/.SmsReceiver requires android.permission.RECEIVE_SMS due to sender com.android.phone (uid 1001)

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

    <activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <receiver
        android:name=".SmsReceiver"
        android:enabled="true"
        android:exported="true">
        <intent-filter android:priority="999" >
            <action android:name="android.provider.Telephony.SMS_RECEIVED" />
        </intent-filter>
    </receiver>
</application>

<uses-permission android:name="android.permission.RECEIVE_SMS"/>

Answer 1

Problem lays in new permissions model for Android M (api 23):

Quickview

• If your app targets the M Preview SDK, it prompts users to grant permissions at runtime, instead of install time.
• Users can revoke permissions at any time from the app Settings screen.
• Your app needs to check that it has the permissions it needs every time it runs.

for SMS case documentation bring an example:

For example, suppose an app lists in its manifest that it needs the SEND_SMS and RECEIVE_SMS permissions, which both belong to android.permission-group.SMS. When the app needs to send a message, it requests the SEND_SMS permission. The system shows the user a dialog box asking if the app can have access to SMS. If the user agrees, the system grants the app the SEND_SMS permission it requested. Later, the app requests RECEIVE_SMS. The system automatically grants this permission, since the user had already approved a permission in the same permission group.

Solutions:

• right way - request permission at first.
• lazy way - set targetSdk 22

Answer 2

First, RECEIVE_SMS permission must be declared in AndroidManifest.xml.

...
<uses-permission android:name="android.permission.RECEIVE_SMS" />
...
<receiver
    android:name=".receiver.IncomingSmsReceiver"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="android.provider.Telephony.SMS_RECEIVED" />
    </intent-filter>
</receiver>

Then, from API level 23, we need to request RECEIVE_SMS permission at run time. This is important to notice. https://developer.android.com/training/permissions/requesting.html

public class MainActivity extends AppCompatActivity {

    private static final int PERMISSIONS_REQUEST_RECEIVE_SMS = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        // Request the permission immediately here for the first time run
        requestPermissions(Manifest.permission.RECEIVE_SMS, PERMISSIONS_REQUEST_RECEIVE_SMS);
    }


    private void requestPermissions(String permission, int requestCode) {
        // Here, thisActivity is the current activity
        if (ContextCompat.checkSelfPermission(this, permission)
                != PackageManager.PERMISSION_GRANTED) {

            // Should we show an explanation?
            if (ActivityCompat.shouldShowRequestPermissionRationale(this, permission)) {

                // Show an explanation to the user *asynchronously* -- don't block
                // this thread waiting for the user's response! After the user
                // sees the explanation, try again to request the permission.
                Toast.makeText(this, "Granting permission is necessary!", Toast.LENGTH_LONG).show();

            } else {

                // No explanation needed, we can request the permission.

                ActivityCompat.requestPermissions(this,
                        new String[]{permission},
                        requestCode);

                // requestCode is an
                // app-defined int constant. The callback method gets the
                // result of the request.
            }
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
        switch (requestCode) {
            case PERMISSIONS_REQUEST_RECEIVE_SMS: {
                // If request is cancelled, the result arrays are empty.
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                    // permission was granted, yay! Do the
                    // contacts-related task you need to do.

                    NotificationUtil.getInstance().show(this, NotificationUtil.CONTENT_TYPE.INFO,
                            getResources().getString(R.string.app_name),
                            "Permission granted!");

                } else {

                    // permission denied, boo! Disable the
                    // functionality that depends on this permission.

                    NotificationUtil.getInstance().show(this, NotificationUtil.CONTENT_TYPE.ERROR,
                            getResources().getString(R.string.app_name),
                            "Permission denied! App will not function correctly");
                }
                return;
            }

            // other 'case' lines to check for other
            // permissions this app might request
        }
    }
}

Hope this help you.