@Override
  public void onResume() {
    super.onResume();
    createView();   

  }
@Override
public void onPause() {
  super.onPause();  
/ 在程序退出(Activity銷毀）時銷毀懸浮窗口
  if(floatView!=null && windowManager !=null) {    windowManager.removeView(floatView);    floatView=null;    windowManager = null;    windowManagerParams = null;  }}
private void createView() {
    if(floatView!=null) return ;
    CmsAPI cmsAPI = RestAdapterUtils.getRestAPI(Config.NEW_CMS_URL, CmsAPI.class, this);
    cmsAPI.getFloatingAd(new Callback<AdFloating>() {//請求數(shù)據(jù)

                 @Override
                 public void success(AdFloating adFloating, Response response) {

                   if (adFloating != null && "0".equals(adFloating.getErrorCode())) {
                     long startTime = adFloating.getStarttime();
                     long endTime = adFloating.getEndtime();
                     long currentTime = System.currentTimeMillis();
//                     LOGD(startTime + " +++++ "+endTime +" "+currentTime +"  "+(currentTime > startTime && currentTime < endTime));
                     if (currentTime > startTime && currentTime < endTime) {//活動的有效期
                       floatView = new FloatView(getApplicationContext());

                       floatView.setOnClickListener(MainActivity.this);
                       int height = 240;
                       int width = 110;
                       float ratio= 1.35f;
                       if (!TextUtils.isEmpty(adFloating.getImg2())) {
                         try {
                           height = Integer.parseInt(adFloating.getImg2h());
                           width = Integer.parseInt(adFloating.getImg2w());
                           ratio = (float) width / height;
                         } catch (Exception e) {
                           ratio = 1.35f;
                         }
                       }
//
                       floatView.setAspectRatio(ratio);//圖片的大小
                       floatView.setImageURI(Uri.parse(adFloating.getImg2()));//設(shè)置圖片的網(wǎng)絡(luò)地址
//                       floatView.setImageResource(R.drawable.face_icon); // 這里簡單的用自帶的icon來做演示

                       // 獲取WindowManager
                       windowManager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
                       // 設(shè)置LayoutParams(全局變量）相關(guān)參數(shù)
                       windowManagerParams = ((MiGuApplication) getApplication()).getWindowParams();
                       windowManagerParams.type = WindowManager.LayoutParams.TYPE_PHONE; // 設(shè)置window type
                       windowManagerParams.format = PixelFormat.RGBA_8888; // 設(shè)置圖片格式，效果為背景透明
                       // 設(shè)置Window flag
                       windowManagerParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
                           | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
                      /*
                      * 注意，flag的值可以為：
                      * LayoutParams.FLAG_NOT_TOUCH_MODAL 不影響后面的事件
                      * LayoutParams.FLAG_NOT_FOCUSABLE 不可聚焦
                      * LayoutParams.FLAG_NOT_TOUCHABLE 不可觸摸
                      */
                       // 調(diào)整懸浮窗口至左上角，便于調(diào)整坐標
                       windowManagerParams.gravity = Gravity.LEFT | Gravity.TOP;
                       // 以屏幕左上角為原點，設(shè)置x、y初始值
                       DisplayMetrics dm = new DisplayMetrics();
                       getWindowManager().getDefaultDisplay().getMetrics(dm);
                       int screenWidth = dm.widthPixels;
                       int screenHeigh = dm.heightPixels;
                       int x = screenWidth - SystemTools.dip2px(MainActivity.this, 100);
                       int y= screenHeigh - SystemTools.dip2px(MainActivity.this, 200);
                       windowManagerParams.x = x;
                       windowManagerParams.y = y;
                       // 設(shè)置懸浮窗口長寬數(shù)據(jù)
                       windowManagerParams.width = width;//設(shè)置窗口的寬度為圖片大小
                       windowManagerParams.height =height;//設(shè)置窗口的高度為圖片大小
//                       windowManagerParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
//                       windowManagerParams.height =WindowManager.LayoutParams.WRAP_CONTENT;
                       // 顯示myFloatView圖像
                       windowManager.addView(floatView, windowManagerParams);
                       return;
                     }

                   }
                 }

                 @Override
                 public void failure(RetrofitError error) {//網(wǎng)絡(luò)請求數(shù)據(jù)失敗
                  LOGE(error.getMessage());
                 }
               });

  }
  public void onClick(View v) {//圖片的點擊事件
    Intent intent = new Intent(MainActivity.this, ActivitiesDetails.class);
    startActivity(intent);
  }

public class FloatView extends SimpleDraweeView {
  private float mTouchX;
  private float mTouchY;
  private float x;
  private float y;
  private float mStartX;
  private float mStartY;
  private OnClickListener mClickListener;
  private WindowManager windowManager = (WindowManager) getContext()
      .getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
  // 此windowManagerParams變量為獲取的全局變量，用以保存懸浮窗口的屬性
  private WindowManager.LayoutParams windowManagerParams = ((MiGuApplication) getContext()
      .getApplicationContext()).getWindowParams();

  public FloatView(Context context) {
    super(context);
  }

  public FloatView(Context context, AttributeSet attrs) {
    super(context, attrs);
  }
  private long curtime=0;
  @Override
  public boolean onTouchEvent(MotionEvent event) {
//獲取到狀態(tài)欄的高度
    Rect frame = new Rect();
    getWindowVisibleDisplayFrame(frame);
    int statusBarHeight = frame.top;
    System.out.println("statusBarHeight:"+statusBarHeight);
// 獲取相對屏幕的坐標，即以屏幕左上角為原點
    x = event.getRawX();
    y = event.getRawY() - statusBarHeight; // statusBarHeight是系統(tǒng)狀態(tài)欄的高度
    switch (event.getAction()) {
      case MotionEvent.ACTION_DOWN: // 捕獲手指觸摸按下動作
// 獲取相對View的坐標，即以此View左上角為原點
        mTouchX = event.getX();
        mTouchY = event.getY();
        mStartX = x;
        mStartY = y;
        break;
      case MotionEvent.ACTION_MOVE: // 捕獲手指觸摸移動動作
        updateViewPosition();
        curtime=System.currentTimeMillis();
        break;
      case MotionEvent.ACTION_UP: // 捕獲手指觸摸離開動作
//        if(System.currentTimeMillis()-curtime>100){
//          break;
//        }
        updateViewPosition();
        mTouchX = mTouchY = 0;
        if (Math.abs(x - mStartX) < 5 && Math.abs(y - mStartY) < 5) {//輕微拖動算點擊
          if(mClickListener!=null) {
            mClickListener.onClick(this);
          }
        }
        break;
    }
    return true;
  }
  @Override
  public void setOnClickListener(OnClickListener l) {
    this.mClickListener = l;
  }
  private void updateViewPosition() {
// 更新浮動窗口位置參數(shù)
    windowManagerParams.x = (int) (x - mTouchX);
    windowManagerParams.y = (int) (y - mTouchY);
    windowManager.updateViewLayout(this, windowManagerParams); // 刷新顯示
  }
}