Handler-Optimized

优化后的Handler

 private WeakReference<ClassName> mActivityWeakReference = new WeakReference<ClassName>(this);
 
    private final Handler mHandler = new InnerHandler(mActivityWeakReference);
    
    private static class InnerHandler extends Handler {
        WeakReference<ClassName> activityWeakReference;
        InnerHandler(WeakReference<ClassName> activityWeakReference) {
            this.activityWeakReference = activityWeakReference;
        }
        public void handleMessage(android.os.Message msg) {
         if (activityWeakReference.get()!=null){
             
         }
        }
    }