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();

}

@Override

public 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() {//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

}

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。