前言
本文例子实现了点击显示悬浮窗口，同时窗口可播放视频，拖动位置，点击关闭及返回
APP
悬浮窗口.gif
原理
WindowManagerViewWindowManager.LayoutParams实现
首先，需要添加相对应悬浮窗权限：
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />在
Activity
public boolean requestOverlayPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (!Settings.canDrawOverlays(this)) {
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
startActivityForResult(intent, REQUEST_OVERLAY_CODE);
return true;
} else {
return false;
}
}
return false;
}获取权限后，我们可以首先初始化我们要显示的视图，并且设置相对应的事件，这里我们采用了
VideoView
private View initFloatView() {
View view = View.inflate(this, R.layout.view_floating_window, null);
// 设置视频封面
final ImageView mThumb = (ImageView) view.findViewById(R.id.thumb_floating_view);
Glide.with(this).load(R.drawable.thumb).into(mThumb);
// 悬浮窗关闭
view.findViewById(R.id.close_floating_view).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mFloatingWindow.dismiss();
}
});
// 返回前台页面
view.findViewById(R.id.back_floating_view).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mFloatingWindow.setTopApp(FloatingWindowActivity.this);
}
});
final VideoView videoView = view.findViewById(R.id.video_view);
//视频内容设置
videoView.setVideoPath("https://stream7.iqilu.com/10339/article/202002/18/2fca1c77730e54c7b500573c2437003f.mp4");
// 视频准备完毕，隐藏正在加载封面，显示视频
videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
mThumb.setVisibility(View.GONE);
}
});
// 循环播放
videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
videoView.start();
}
});
// 开始播放视频
videoView.start();
return view;
}通过获取窗口管理
WindowManagerWindowManager.LayoutParamsWindowManageraddView
public void showFloatingWindowView(Context context, View view) {
// 悬浮窗显示视图
mShowView = view;
// 获取系统窗口管理服务
mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
// 悬浮窗口参数设置及返回
mFloatParams = getParams();
// 设置窗口触摸移动事件
mShowView.setOnTouchListener(new FloatViewMoveListener());
// 悬浮窗生成
mWindowManager.addView(mShowView, mFloatParams);
}WindowManager.LayoutParamsWindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
private WindowManager.LayoutParams getParams() {
WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
//设置悬浮窗口类型
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
layoutParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
} else {
layoutParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
}
//设置悬浮窗口属性
layoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
| WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR
| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
//设置悬浮窗口透明
layoutParams.format = PixelFormat.TRANSLUCENT;
//设置悬浮窗口长宽数据
layoutParams.width = 600;
layoutParams.height = 340;
//设置悬浮窗显示位置
layoutParams.gravity = Gravity.START | Gravity.TOP;
layoutParams.x = 100;
layoutParams.y = 100;
return layoutParams;
}窗口触摸移动事件，主要通过获取触摸位置，通过
WindowManagerupdateViewLayout
private class FloatViewMoveListener implements View.OnTouchListener {
//开始触控的坐标，移动时的坐标（相对于屏幕左上角的坐标）
private int mTouchStartX;
private int mTouchStartY;
//开始时的坐标和结束时的坐标（相对于自身控件的坐标）
private int mStartX, mStartY;
//判断悬浮窗口是否移动，这里做个标记，防止移动后松手触发了点击事件
private boolean isMove;
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
int action = motionEvent.getAction();
int x = (int) motionEvent.getX();
int y = (int) motionEvent.getY();
switch (action) {
case MotionEvent.ACTION_DOWN:
isMove = false;
mTouchStartX = (int) motionEvent.getRawX();
mTouchStartY = (int) motionEvent.getRawY();
mStartX = x;
mStartY = y;
break;
case MotionEvent.ACTION_MOVE:
int mTouchCurrentX = (int) motionEvent.getRawX();
int mTouchCurrentY = (int) motionEvent.getRawY();
mFloatParams.x += mTouchCurrentX - mTouchStartX;
mFloatParams.y += mTouchCurrentY - mTouchStartY;
mWindowManager.updateViewLayout(mShowView, mFloatParams);
mTouchStartX = mTouchCurrentX;
mTouchStartY = mTouchCurrentY;
float deltaX = x - mStartX;
float deltaY = y - mStartY;
if (Math.abs(deltaX) >= 5 || Math.abs(deltaY) >= 5) {
isMove = true;
}
break;
case MotionEvent.ACTION_UP:
break;
default:
break;
}
//如果是移动事件不触发OnClick事件，防止移动的时候一放手形成点击事件
return isMove;
}
}关闭悬浮窗，调用
WindowManagerremoveView
public void dismiss() {
if (mWindowManager != null && mShowView != null) {
mWindowManager.removeView(mShowView);
}
}悬浮窗点击返回前台方法：
public void setTopApp(Context context) {
//获取ActivityManager
ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
//获得当前运行的task(任务)
List<ActivityManager.RunningTaskInfo> taskInfoList = null;
if (activityManager != null) {
taskInfoList = activityManager.getRunningTasks(100);
}
if (taskInfoList != null) {
for (ActivityManager.RunningTaskInfo taskInfo : taskInfoList) {
//找到本应用的 task，并将它切换到前台
if (taskInfo.topActivity != null && taskInfo.topActivity.getPackageName().equals(context.getPackageName())) {
activityManager.moveTaskToFront(taskInfo.id, 0);
break;
}
}
}
}关于悬浮窗的一些基本操作到这里就基本结束了，具体的布局内容及操作，欢迎查看具体的源码实现： Github开发记录
到此这篇关于Android视频悬浮窗口实现的示例代码的文章就介绍到这了,更多相关Android视频悬浮窗口 内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
您可能感兴趣的文章:android实现桌面移动悬浮窗口Android手机悬浮窗口小案例Android中悬浮窗口的实现原理实例分析android 添加随意拖动的桌面悬浮窗口
