Fixes #732: Add support for runtime permissions

1 files changed, 25 insertions, 0 deletions

diff --git a/app/src/main/java/github/daneren2005/dsub/activity/SubsonicActivity.java b/app/src/main/java/github/daneren2005/dsub/activity/SubsonicActivity.java
index ab846ba0..d987f403 100644
--- a/app/src/main/java/github/daneren2005/dsub/activity/SubsonicActivity.java
+++ b/app/src/main/java/github/daneren2005/dsub/activity/SubsonicActivity.java
@@ -32,12 +32,15 @@ import android.os.Bundle;
 import android.os.Environment;
 import android.os.Handler;
 import android.support.design.widget.NavigationView;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
 import android.support.v7.app.ActionBarDrawerToggle;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentTransaction;
 import android.support.v4.widget.DrawerLayout;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
+import android.support.v7.app.AppCompatDelegate;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;
 import android.view.KeyEvent;
@@ -81,6 +84,8 @@ import github.daneren2005.dsub.util.Util;
 import github.daneren2005.dsub.view.UpdateView;
 import github.daneren2005.dsub.util.UserUtil;
 
+import static android.Manifest.*;
+
 public class SubsonicActivity extends AppCompatActivity implements OnItemSelectedListener {
 	private static final String TAG = SubsonicActivity.class.getSimpleName();
 	private static ImageLoader IMAGE_LOADER;
@@ -89,6 +94,7 @@ public class SubsonicActivity extends AppCompatActivity implements OnItemSelecte
 	protected static boolean actionbarColored;
 	private static final int MENU_GROUP_SERVER = 10;
 	private static final int MENU_ITEM_SERVER_BASE = 100;
+	private static final int PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE = 1;
 
 	private final List<Runnable> afterServiceAvailable = new ArrayList<>();
 	private boolean drawerIdle = true;
@@ -165,6 +171,25 @@ public class SubsonicActivity extends AppCompatActivity implements OnItemSelecte
 			};
 			Util.getPreferences(this).registerOnSharedPreferenceChangeListener(preferencesListener);
 		}
+
+		if (ContextCompat.checkSelfPermission(this, permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
+			ActivityCompat.requestPermissions(this, new String[]{ permission.WRITE_EXTERNAL_STORAGE }, PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
+		}
+	}
+
+	@Override
+	public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
+		switch (requestCode) {
+			case PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE: {
+				// If request is cancelled, the result arrays are empty.
+				if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+
+				} else {
+					Util.toast(this, R.string.permission_external_storage_failed);
+					finish();
+				}
+			}
+		}
 	}
 
 	@Override