Attendez l'autorisation de l'utilisateur

Vous pouvez gérer la réponse de l'utilisateur méthode de remplacement

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

de votre activité.

J'ai travaillé il le dessous de façon à:

1 - a Créé un Boolean de l'aide pour vérifier les autorisations accordées:

public class UtilPermissions {
    public static boolean hasPermissions(Context context, String... allPermissionNeeded)
    {
        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
                && context != null && allPermissionNeeded != null) 
            for (String permission : allPermissionNeeded) 
                if (ActivityCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED)
                     return false;
        return true;
    }
}

2 - a Créé un Splash écran:

public class Splash extends Activity {
    private static final int PERMISSION_ALL = 0;
    private Handler h;
    private Runnable r;
  /*  
    SharedPreferences mPrefs;
    final String settingScreenShownPref = "settingScreenShown";
    final String versionCheckedPref = "versionChecked";
  */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        h = new Handler();
        r = new Runnable() {
            @Override
            public void run() {
                Toast.makeText(Splash.this, "Runnable started", Toast.LENGTH_SHORT).show();

  /*          //(OPTIONAL) these lines to check if the `First run` ativity is required
                int versionCode = BuildConfig.VERSION_CODE;
                String versionName = BuildConfig.VERSION_NAME;

                mPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
                SharedPreferences.Editor editor = mPrefs.edit();

                Boolean settingScreenShown = mPrefs.getBoolean(settingScreenShownPref, false);
                int savedVersionCode = mPrefs.getInt(versionCheckedPref, 1);

                if (!settingScreenShown || savedVersionCode != versionCode) {
                    startActivity(new Intent(Splash.this, FirstRun.class));
                    editor.putBoolean(settingScreenShownPref, true);
                    editor.putInt(versionCheckedPref, versionCode);
                    editor.commit();
                }
                else
  */
                startActivity(new Intent(Splash.this, MainActivity.class));
                finish();    
            }
        };

        String[] PERMISSIONS = {
                READ_PHONE_STATE,
                MODIFY_AUDIO_SETTINGS,
                ACCESS_FINE_LOCATION,
                READ_SMS
        };

        if(!UtilPermissions.hasPermissions(this, PERMISSIONS)){
            ActivityCompat.requestPermissions(this, PERMISSIONS, PERMISSION_ALL);
        }
        else
            h.postDelayed(r, 1500);
    }

  //Put the below OnRequestPermissionsResult code here
}

3 - Créé le OnRequestPermissionsResult comme ci-dessous:

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

    int index = 0;
    Map<String, Integer> PermissionsMap = new HashMap<String, Integer>();
    for (String permission : permissions){
        PermissionsMap.put(permission, grantResults[index]);
        index++;
    }

    if((PermissionsMap.get(ACCESS_FINE_LOCATION) != 0)
            || PermissionsMap.get(READ_SMS) != 0){
        Toast.makeText(this, "Location and SMS permissions are a must", Toast.LENGTH_SHORT).show();
        finish();
    }
    else
    {
        h.postDelayed(r, 1500);
    }
}

4 Définis par la Splash écran comme Launcher dans le AndroidManifest.xml:

<activity
    android:name=".MainActivity"
    android:label="@string/app_name"
    android:theme="@style/AppTheme.NoActionBar">
</activity>

<activity
    android:name=".Splash"
    android:configChanges="orientation|keyboardHidden|screenSize"
    android:theme="@style/SplashTheme">

    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

5 - Dans la styles.xml défini le SplashTheme:

<style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
    <item name="android:windowBackground">@drawable/Splash</item>
</style>

6 - Le @drawable/Splash.xmls est:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:drawable="@color/lightgray"/>

    <item>
        <bitmap
            android:gravity="center"
            android:src="@mipmap/ic_launcher"/>
    </item>

</layer-list>

7 - Dans le values/colors.xmls la lightgray couleur a été définie comme ci-dessous:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="lightgray">#D3D3D3</color>
</resources>