之前接了需求要让视频播放时可以像优酷视频那样在悬浮窗里播放,并且悬浮窗和主播放页面之间要实现无缝切换,项目中使用的是自封装的ijkplayer
这个要求就代表不能在悬浮窗中新建视频控件,所以需要在悬浮窗中复用主页面的视频控件,以达到无缝衔接的效果。
主页面对应的视频控件的父view
用FrameLayout作为添加视频控件的ParentView,通过addview方法将新建的播放器控件添加到父控件内部
vw_live = new IjkVideoView(this);
video_frame = findViewById(R.id.vw_live); video_frame.addView(vw_live);
主播放界面的启动模式
播放主界面的activity的启动模式不能为默认,因为我们要保证播放主界面在显示悬浮窗的时候退到后台,但是整个的应用不能退到后台,所以activity的启动模式改为singleInstance
android:launchMode="singleInstance"
退到后台我们通过moveTaskToBack(true)方法;
moveTaskToBack(true);
可以让播放界面退到后台而整个应用不会退回后台
权限请求
要使用悬浮窗需要申请权限
if (!Settings.canDrawOverlays(this)) { Toast.makeText(this, "当前无权限,请授权", Toast.LENGTH_SHORT); startActivityForResult(new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName())), 2); }
悬浮窗
@SuppressLint("ClickableViewAccessibility") public void showFloatingWindowView(IjkVideoView view) { // 悬浮窗显示视图 LayoutInflater layoutInflater = LayoutInflater.from(activity); mShowView = layoutInflater.inflate(R.layout.video_floating_window_layout, null);; // 获取系统窗口管理服务 mWindowManager = (WindowManager) activity.getSystemService(Context.WINDOW_SERVICE); // 悬浮窗口参数设置及返回 mFloatParams = getParams(); //floatingWindow内部控件实例 init(view); // 设置窗口触摸移动事件 mShowView.setOnTouchListener(new FloatViewMoveListener()); // 悬浮窗生成 mWindowManager.addView(mShowView, mFloatParams); } private void init(IjkVideoView viewGroup){ videoLayout = mShowView.findViewById(R.id.floating_video); videoLayout.removeAllViews(); if (viewGroup != null){ ijkVideoView = viewGroup; videoLayout.addView(ijkVideoView,new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT ,ViewGroup.LayoutParams.MATCH_PARENT)); } mBtnCloseFloatingWindow = mShowView.findViewById(R.id.close_floating_view); mBtnCloseFloatingWindow.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { } }); mBtnBackFloatingWindow = (ImageView)mShowView.findViewById(R.id.back_floating_view); mBtnBackFloatingWindow.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { } }); } 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 = 500; 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; }
悬浮窗的xml,可通过自定义获得自己想要的效果
悬浮窗的滑动,我们可以通过自定义点击监听实现
/** * 浮窗移动/点击监听 */ 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; } }
悬浮窗的消失,在这里调用videoLayout.removeAllViews()是为了将复用的视频控件的父View清空,返回主播放activity的时候调用addview方法不会再报 child view has Parent,you have to call removeView()的错
public void dismiss() { if (mWindowManager != null && mShowView != null) { videoLayout.removeAllViews(); if (mShowView.getParent() != null){ mWindowManager.removeView(mShowView); } } }
启动悬浮窗
public videoFloatingWindow(Context context){ super(context); this.activity = context; }
对于悬浮窗的调用
用hasBind来记录是否调用了悬浮窗
private void startFloatingWindow(){ if (!Settings.canDrawOverlays(this)) { Toast.makeText(this, "当前无权限,请授权", Toast.LENGTH_SHORT); startActivityForResult(new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName())), 2); } else { video_frame.removeView(vw_live); videoFloatingWindow.getInstance(this).showFloatingWindowView(vw_live); hasBind = true; moveTaskToBack(true); } }
注意
一.由于主界面activity使用了singleInstance启动模式,所以从悬浮窗返回主界面activity时,要添加flag
Intent intent = new Intent(activity, activity.getClass()); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); activity.startActivity(intent);
二.当主界面的activity退回后台,再重新进入主界面的时候,注意,不再调用onCreate方法,而是调用onNewIntent,所以重写onNewIntent方法,重新进入主界面,悬浮窗消失
@Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); Log.d("RemoteView", "重新显示了"); //不显示悬浮框 if (hasBind){ videoFloatingWindow.getInstance(this).dismiss(); video_frame.removeAllViews(); if (vw_live != null){ video_frame.addView(vw_live); } hasBind = false; } }
总结
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