Android 实现可任意拖动的悬浮窗功能(类似悬浮球）

2023-07-24 02:05:04 80

最近开发项目中，有个在屏幕上任意拖动的悬浮窗功能，其实就是利用WindowManager的api来完成这个需求，具体的实现的功能如下：
1.自定义view

importandroid.content.Context;
importandroid.content.Intent;
importandroid.os.Handler;
importandroid.os.Message;
importandroid.util.Log;
importandroid.util.TypedValue;
importandroid.view.MotionEvent;
importandroid.view.View;
importandroid.view.ViewConfiguration;
importandroid.view.WindowManager;
importandroid.widget.LinearLayout;
importcom.xinrui.recordscreen.R;
importjava.lang.reflect.Field;
/**
*
*/
publicclassRecordScreenViewextendsLinearLayoutimplementsView.OnClickListener{
privateWindowManagermWindowManager;
privateWindowManager.LayoutParamsmLayoutParams;
privatelongmLastDownTime;
privatefloatmLastDownX;
privatefloatmLastDownY;
privatebooleanmIsLongTouch;
privatebooleanmIsTouching;
privatefloatmTouchSlop;
privatefinalstaticlongLONG_CLICK_LIMIT=20;
privatefinalstaticintTIME_COUNT=0;
privateintmStatusBarHeight;
privateintmCurrentMode,time=0;
privatefinalstaticintMODE_NONE=0x000;
privatefinalstaticintMODE_MOVE=0x001;
privateintmOffsetToParent;
privateintmOffsetToParentY;
privateContextmContext;
publicRecordScreenView(Contextcontext){
super(context);
this.mContext=context;
mWindowManager=(WindowManager)getContext().getSystemService(Context.WINDOW_SERVICE);
initView();
}
privatevoidinitView(){
Viewview=inflate(getContext(),R.layout.layout_ball,this)；
mTouchSlop=ViewConfiguration.get(getContext()).getScaledTouchSlop();
mCurrentMode=MODE_NONE;
recordtime(0);
mStatusBarHeight=getStatusBarHeight();
mOffsetToParent=dip2px(25);
mOffsetToParentY=mStatusBarHeight+mOffsetToParent;
view.setOnTouchListener(newOnTouchListener(){
@Override
publicbooleanonTouch(Viewv,finalMotionEventevent){
switch(event.getAction()){
caseMotionEvent.ACTION_DOWN:
mIsTouching=true;
mLastDownTime=System.currentTimeMillis();
mLastDownX=event.getX();
mLastDownY=event.getY();
postDelayed(newRunnable(){
@Override
publicvoidrun(){
if(isLongTouch()){
mIsLongTouch=true;
}
}
},LONG_CLICK_LIMIT);
break;
caseMotionEvent.ACTION_MOVE:
if(!mIsLongTouch&&isTouchSlop(event)){
returntrue;
}
if(mIsLongTouch&&(mCurrentMode==MODE_NONE||mCurrentMode==MODE_MOVE)){
mLayoutParams.x=(int)(event.getRawX()-mOffsetToParent);
mLayoutParams.y=(int)(event.getRawY()-mOffsetToParentY);
mWindowManager.updateViewLayout(RecordScreenView.this,mLayoutParams);//不断刷新悬浮窗的位置
mCurrentMode=MODE_MOVE;
}
break;
caseMotionEvent.ACTION_CANCEL:
caseMotionEvent.ACTION_UP:
mIsTouching=false;
if(mIsLongTouch){
mIsLongTouch=false;
}
mCurrentMode=MODE_NONE;
break;
}
returntrue;
}
});
}
privatebooleanisLongTouch(){
longtime=System.currentTimeMillis();
if(mIsTouching&&mCurrentMode==MODE_NONE&&(time-mLastDownTime>=LONG_CLICK_LIMIT)){
returntrue;
}
returnfalse;
}
/**
*判断是否是轻微滑动
*
*@paramevent
*@return
*/
privatebooleanisTouchSlop(MotionEventevent){
floatx=event.getX();
floaty=event.getY();
if(Math.abs(x-mLastDownX)c=Class.forName("com.android.internal.R$dimen");
Objecto=c.newInstance();
Fieldfield=c.getField("status_bar_height");
intx=(Integer)field.get(o);
statusBarHeight=getResources().getDimensionPixelSize(x);
}catch(Exceptione){
e.printStackTrace();
}
returnstatusBarHeight;
}
publicintdip2px(floatdip){
return(int)TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP,dip,getContext().getResources().getDisplayMetrics()
);
}
}

2.添加windowManager添加view

importandroid.content.Context;
importandroid.graphics.PixelFormat;
importandroid.view.Gravity;
importandroid.view.WindowManager;
importandroid.view.WindowManager.LayoutParams;

/**
*Createdbywangxiandengon2016/11/25.
*/

publicclassFloatWindowManager{
privatestaticRecordScreenViewmBallView;

privatestaticWindowManagermWindowManager;


publicstaticvoidaddBallView(Contextcontext){
if(mBallView==null){
WindowManagerwindowManager=getWindowManager(context);
intscreenWidth=windowManager.getDefaultDisplay().getWidth();
intscreenHeight=windowManager.getDefaultDisplay().getHeight();
mBallView=newRecordScreenView(context);
LayoutParamsparams=newLayoutParams();
params.x=screenWidth/2;
params.y=screenHeight/2+150;
params.width=LayoutParams.WRAP_CONTENT;
params.height=LayoutParams.WRAP_CONTENT;
params.gravity=Gravity.LEFT|Gravity.TOP;
params.type=LayoutParams.TYPE_APPLICATION_OVERLAY;
params.format=PixelFormat.RGBA_8888;
params.flags=LayoutParams.FLAG_NOT_TOUCH_MODAL
|LayoutParams.FLAG_NOT_FOCUSABLE;
mBallView.setLayoutParams(params);
windowManager.addView(mBallView,params);
}
}

publicstaticvoidremoveBallView(Contextcontext){
if(mBallView!=null){
WindowManagerwindowManager=getWindowManager(context);
windowManager.removeView(mBallView);
mBallView=null;
}
}

privatestaticWindowManagergetWindowManager(Contextcontext){
if(mWindowManager==null){
mWindowManager=(WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
}
returnmWindowManager;
}
}

3.Acitivity中调用

importandroid.app.Activity;
importandroid.content.Intent;
importandroid.os.Build;
importandroid.os.Bundle;
importandroid.provider.Settings;
importandroid.util.Log;
importandroid.widget.Toast;

importcom.xinrui.recordscreen.view.FloatWindowManager;

publicclassMainActivityextendsActivity{

@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
if(Build.VERSION.SDK_INT>=23){
//设置中请求开启悬浮窗权限
if(!Settings.canDrawOverlays(this)){
Intentintent=newIntent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
Toast.makeText(this,MainActivity.this.getResources().getString(R.string.open_float),Toast.LENGTH_SHORT).show();
}else{
initView();
}
}
}

privatevoidinitView(){
FloatWindowManager.addBallView(MainActivity.this);
finish();
}
}

5.AndroidManifest.xml






//悬浮窗权限

总结

到此这篇关于Android实现可任意拖动的悬浮窗功能(类似悬浮球）的文章就介绍到这了,更多相关Android任意拖动的悬浮窗内容请搜索毛票票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毛票票！

Android 实现可任意拖动的悬浮窗功能(类似悬浮球）

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