Optimized NavigationView, the way to exit.

Add vibration and shadow to tool buttons.

app/src/main/java/com/fatapp/oxygentoolbox/util/VibratorController.java

@@ -0,0 +1,32 @@
+package com.fatapp.oxygentoolbox.util;
+
+import android.app.Service;
+import android.os.Vibrator;
+
+public class VibratorController {
+    private static boolean hasVib;
+    private static Vibrator sVib;
+
+    public static void init() {
+        sVib = (Vibrator) ResourceUtil.getApplication().getSystemService(Service.VIBRATOR_SERVICE);
+        hasVib = sVib.hasVibrator();
+    }
+
+    public static void vibrate(long milliseconds) {
+        if (hasVib) {
+            sVib.vibrate(milliseconds);
+        }
+    }
+
+    public static void vibrate(long[] pattern,int repeat){
+        if (hasVib) {
+            sVib.vibrate(pattern,repeat);
+        }
+    }
+
+    public static void cancel(){
+        if (hasVib) {
+            sVib.cancel();
+        }
+    }
+}