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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<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) {//Dauer der Aktivität
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);//Bildgröße
floatView.setImageURI(Uri.parse(adFloating.getImg2))));//Setzen Sie die Netzwerkadresse des Bildes
// floatView.setImageResource(R.drawable.face_icon); // Hier wird eine einfache Demonstration mit dem integrierten Icon durchgeführt
// Get WindowManager
windowManager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
// Set parameters related to LayoutParams (global variables)
windowManagerParams = ((MiGuApplication) getApplication()).getWindowParams();
windowManagerParams.type = WindowManager.LayoutParams.TYPE_PHONE; // Set window type
windowManagerParams.format = PixelFormat.RGBA_8888; // Set image format, effect is background transparent
// Set Window flag
windowManagerParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
/*
* Note that the value of flag can be:
* LayoutParams.FLAG_NOT_TOUCH_MODAL does not affect subsequent events
* LayoutParams.FLAG_NOT_FOCUSABLE not focusable
* LayoutParams.FLAG_NOT_TOUCHABLE not touchable
*/
// Adjust the floating window to the top-left corner for easy adjustment of coordinates
windowManagerParams.gravity = Gravity.LEFT | Gravity.TOP;
// Set the initial values of x and y with the top-left corner of the screen as the origin
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;
// Die Abmessungen des schwebenden Fensters einstellen
windowManagerParams.width = width;//Die Breite des Fensters auf die Bildgröße einstellen
windowManagerParams.height = height;//Die Höhe des Fensters auf die Bildgröße einstellen
// windowManagerParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
// windowManagerParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
// Das Bild von myFloatView anzeigen
windowManager.addView(floatView, windowManagerParams);
return;
}
}
}
@Override
public void failure(RetrofitError error) {//Fehlschlag bei der Netzwerkdatenanfrage
LOGE(error.getMessage());
}
});
}
public void onClick(View v) {//Klickereignis des Bildes
Intent intent = new Intent(MainActivity.this, ActivitiesDetails.class);
startActivity(intent);
}
Bildeingabeanlage:
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);
// dieser windowManagerParams Variable ist die erfasste globale Variable, um die Eigenschaften des floating Fensters zu speichern
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) {
//Erfassen Sie die Höhe des Statusbars
Rect frame = new Rect();
getWindowVisibleDisplayFrame(frame);
int statusBarHeight = frame.top;
System.out.println("statusBarHeight:")+statusBarHeight);
// Erfassen Sie die relative Koordinate zum Bildschirm, d.h. mit dem linken oberen Ecke des Bildschirms als Ursprung
x = event.getRawX();
y = event.getRawY() - statusBarHeight; // statusBarHeight ist die Höhe des Systems Statusbars
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: // Erfassen Sie den Druck der Fingerspitze
// Erfassen Sie die relative Koordinate zum View, d.h. mit dem linken oberen Ecke dieses Views als Ursprung
mTouchX = event.getX();
mTouchY = event.getY();
mStartX = x;
mStartY = y;
break;
case MotionEvent.ACTION_MOVE: // Erfassen Sie den Bewegung der Fingerspitze
updateViewPosition();
curtime=System.currentTimeMillis();
break;
case MotionEvent.ACTION_UP: // Erfassen Sie den Abgang der Fingerspitze
// 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呐喊教程。
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