前序
按项目交互要求,需要把视频通话界面,缩小至悬浮窗显示,基本实现思路这个比较好想,就是启用一个service,在里面用WindowManager去addView来展示悬浮窗画面。基本效果是有了,但填坑之路才刚开始。。
坑一:WindowManager.LayoutParam.type的选取
选择TYPE_TOAST,如果期间有toast弹出,在android7.1.1会崩溃
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
wmParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
} else {
wmParams.type = WindowManager.LayoutParams.TYPE_PHONE;
}
注意:在android9.0以上就算按照上面方法设置,如果不提前授予悬浮窗权限,也会崩溃
坑二:SingleInstance和onActivityResult搭配问题
当处于悬浮窗口时,此时通话界面会推到后台,要调用moveTaskToBack(true),如果通话的Activity的启动模式不设置为SingleInstance,就会导致整个应用退到后台,不是我们想要的效果,为了只把VIdeoCallActivity(通话界面)退到后台,那么此界面就必须得在单独的一个栈里,所以要设置为SingleInstance。
用一个启动模式为SingleInstance的Activity去打开一个界面,在onActivityResult是拿不到结果的,所以只能用startActivity,然后再VIdeoCallActivity判断悬浮是否已打开,如果打开,则悬浮显示。
坑三:跳转开启悬浮窗设置界面的机型适配问题
适配了市面上大部分厂商机型,小米、华为、魅族、oppo、vivo、360、锤子
跳转开启权限工具类
悬浮窗服务FloatVideoWindowService
FloatVideoWindowService extends Service {
private static final String TAG = "FloatVideoWindowService";
private WindowManager mWindowManager;
private WindowManager.LayoutParams wmParams;
private View mFloatingLayout;
private RelativeLayout smallSizePreviewLayout;
private BaseVCManager mVCManager;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return new MyBinder();
}
public class MyBinder extends Binder {
public FloatVideoWindowService getService() {
return FloatVideoWindowService.this;
}
}
@Override
public void onCreate() {
super.onCreate();
initWindow();//设置悬浮窗基本参数(位置、宽高等)
initFloating();//悬浮框点击事件的处理
mVCManager = VideoChatStateManager.getInstance().getManager();
initSurface();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy() {
LogUtil.d(TAG, "onDestroy");
if (mFloatingLayout != null) {
// 移除悬浮窗口
mWindowManager.removeView(mFloatingLayout);
}
}
/**
* 初始化预览窗口
*/
private synchronized void initSurface() {
if (mVCManager != null) {
mVCManager.switchToFloatWindow(this, smallSizePreviewLayout);
}
}
/**
* 设置悬浮框基本参数(位置、宽高等)
*/
private void initWindow() {
mWindowManager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
wmParams = getParams();
// 悬浮窗默认显示以左上角为起始坐标
wmParams.gravity = Gravity.RIGHT | Gravity.TOP;
//悬浮窗的开始位置,因为设置的是从左上角开始,所以屏幕左上角是x=0;y=0
wmParams.x = AndroidUtil.dpToPx(this, 10);
wmParams.y = 110;
//得到容器,通过这个inflater来获得悬浮窗控件
LayoutInflater inflater = LayoutInflater.from(getApplicationContext());
// 获取浮动窗口视图所在布局
mFloatingLayout = inflater.inflate(R.layout.view_videochat_services_float_layout, null);
// 添加悬浮窗的视图
mWindowManager.addView(mFloatingLayout, wmParams);
}
private WindowManager.LayoutParams getParams() {
wmParams = new WindowManager.LayoutParams();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
wmParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
} else {
wmParams.type = WindowManager.LayoutParams.TYPE_PHONE;
}
//wmParams.windowAnimations = R.style.default_style;
//设置可以显示在状态栏上
wmParams.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;
int fullCropWidth = ScreenUtil.getPxWidth(this);
int cropHeight = fullCropWidth * 4 / 3;
//设置悬浮窗口长宽数据
wmParams.width = (int) (fullCropWidth * 0.26);
wmParams.height = (int) (cropHeight * 0.26);
return wmParams;
}
private void initFloating() {
smallSizePreviewLayout = mFloatingLayout.findViewById(R.id.small_size_preview);
//悬浮框点击事件
smallSizePreviewLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//HomeApi.startHomeActivity(FloatVideoWindowService.this);
Intent intent = new Intent(new Intent(FloatVideoWindowService.this, VideoChatActivity.class));
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
});
//悬浮框触摸事件,设置悬浮框可拖动
smallSizePreviewLayout.setOnTouchListener(new FloatingListener());
}
/**
* 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;
private int 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;
private class FloatingListener implements View.OnTouchListener {
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
isMove = false;
mTouchStartX = (int) event.getRawX();
mTouchStartY = (int) event.getRawY();
mStartX = (int) event.getX();
mStartY = (int) event.getY();
break;
case MotionEvent.ACTION_MOVE:
int mTouchCurrentX = (int) event.getRawX();
int mTouchCurrentY = (int) event.getRawY();
wmParams.x -= mTouchCurrentX - mTouchStartX;
wmParams.y += mTouchCurrentY - mTouchStartY;
mWindowManager.updateViewLayout(mFloatingLayout, wmParams);
mTouchStartX = mTouchCurrentX;
mTouchStartY = mTouchCurrentY;
break;
case MotionEvent.ACTION_UP:
int mStopX = (int) event.getX();
int mStopY = (int) event.getY();
if (Math.abs(mStartX - mStopX) >= 1 || Math.abs(mStartY - mStopY) >= 1) {
isMove = true;
}
break;
default:
LogUtil.d(TAG, "onTouch: other");
}
//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;
}
}
}
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