android浮层图片拖动并且可点击效果

概述最近产品出了个新需求，页面上出现浮层并且可点击，代码实现如下：Activity中实现浮层图片：

最近产品出了个新需求，页面上出现浮层并且可点击，代码实现如下：

Activity中实现浮层图片：

@OverrIDe  public voID onResume() {    super.onResume();    createVIEw();     }@OverrIDepublic voID onPause() {  super.onPause();  / 在程序退出(Activity销毁）时销毁悬浮窗口  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>() {//请求数据                 @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) {//活动的有效期                       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);//图片的大小                       floatVIEw.setimageURI(Uri.parse(adfloating.getimg2()));//设置图片的网络地址//                       floatVIEw.setimageResource(R.drawable.face_icon); // 这里简单的用自带的icon来做演示                       // 获取WindowManager                       windowManager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);                       // 设置LayoutParams(全局变量）相关参数                       windowManagerParams = ((MiGuApplication) getApplication()).getwindowParams();                       windowManagerParams.type = WindowManager.LayoutParams.TYPE_PHONE; // 设置window type                       windowManagerParams.format = PixelFormat.RGBA_8888; // 设置图片格式，效果为背景透明                       // 设置Window flag                       windowManagerParams.flags = WindowManager.LayoutParams.FLAG_NOT_touch_MODAL                           | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;                      /*                      * 注意，flag的值可以为：                      * LayoutParams.FLAG_NOT_touch_MODAL 不影响后面的事件                      * LayoutParams.FLAG_NOT_FOCUSABLE 不可聚焦                      * LayoutParams.FLAG_NOT_touchABLE 不可触摸                      */                       // 调整悬浮窗口至左上角，便于调整坐标                       windowManagerParams.gravity = Gravity.left | Gravity.top;                       // 以屏幕左上角为原点，设置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;                       // 设置悬浮窗口长宽数据                       windowManagerParams.wIDth = wIDth;//设置窗口的宽度为图片大小                       windowManagerParams.height =height;//设置窗口的高度为图片大小//                       windowManagerParams.wIDth = WindowManager.LayoutParams.WRAP_CONTENT;//                       windowManagerParams.height =WindowManager.LayoutParams.WRAP_CONTENT;                       // 显示myfloatVIEw图像                       windowManager.addVIEw(floatVIEw,windowManagerParams);                       return;                     }                   }                 }                 @OverrIDe                 public voID failure(RetrofitError error) {//网络请求数据失败                  LOGE(error.getMessage());                 }               });  }  public voID onClick(VIEw v) {//图片的点击事件    Intent intent = new Intent(MainActivity.this,ActivitIEsDetails.class);    startActivity(intent);  }

图片控件：

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变量为获取的全局变量，用以保存悬浮窗口的属性  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) {//获取到状态栏的高度    Rect frame = new Rect();    getwindowVisibledisplayFrame(frame);    int statusbarHeight = frame.top;    System.out.println("statusbarHeight:"+statusbarHeight);// 获取相对屏幕的坐标，即以屏幕左上角为原点    x = event.getRawX();    y = event.getRawY() - statusbarHeight; // statusbarHeight是系统状态栏的高度    switch (event.getAction()) {      case MotionEvent.ACTION_DOWN: // 捕获手指触摸按下动作// 获取相对VIEw的坐标，即以此VIEw左上角为原点        mtouchX = event.getX();        mtouchY = event.getY();        mStartX = x;        mStartY = y;        break;      case MotionEvent.ACTION_MOVE: // 捕获手指触摸移动动作        updateVIEwposition();        curtime=System.currentTimeMillis();        break;      case MotionEvent.ACTION_UP: // 捕获手指触摸离开动作//        if(System.currentTimeMillis()-curtime>100){//          break;//        }        updateVIEwposition();        mtouchX = mtouchY = 0;        if (Math.abs(x - mStartX) < 5 && Math.abs(y - mStartY) < 5) {//轻微拖动算点击          if(mClickListener!=null) {            mClickListener.onClick(this);          }        }        break;    }    return true;  }  @OverrIDe  public voID setonClickListener(OnClickListener l) {    this.mClickListener = l;  }  private voID updateVIEwposition() {// 更新浮动窗口位置参数    windowManagerParams.x = (int) (x - mtouchX);    windowManagerParams.y = (int) (y - mtouchY);    windowManager.updateVIEwLayout(this,windowManagerParams); // 刷新显示  }}

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