详解android6.0版本下悬浮窗实现

2024-02-27 05:43:03 215

悬浮窗在安卓中实现起来还是比较容易的，这几天在网上温习了相关资料，运行在我安卓6.0手机上才发现，原来在6.0手机上不是行的。

第一反应肯定是权限相关问题，做了相关处理后，果然让悬浮窗原形毕露了。直接贴代码。

publicclassMainActivityextendsAppCompatActivity{
privatestaticfinalintALERT_WINDOW_PERMISSION_CODE=100;
privateButtonstart_float;

@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
start_float=(Button)findViewById(R.id.start_float);
this.start_float.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewview){
if(Build.VERSION.SDK_INT>22){
sdk23Permission();
}else{
startService(newIntent(MainActivity.this,FloatService.class));
finish();
}
}
});
}

/**
*@description安卓6.0下权限处理
*@authorldm
*@time2017/3/2015:00
*/
publicvoidsdk23Permission(){
if(!Settings.canDrawOverlays(this)){
Toast.makeText(MainActivity.this,"当前无权限使用悬浮窗，请授权！",Toast.LENGTH_SHORT).show();
Intentintent=newIntent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
Uri.parse("package:"+getPackageName()));
startActivityForResult(intent,ALERT_WINDOW_PERMISSION_CODE);
}else{
startService(newIntent(MainActivity.this,FloatService.class));
finish();
}
}

/**
*用户返回
*/
protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){
if(requestCode==ALERT_WINDOW_PERMISSION_CODE){
if(!Settings.canDrawOverlays(this)){
Toast.makeText(MainActivity.this,"权限授予失败，无法开启悬浮窗",Toast.LENGTH_SHORT).show();
}else{
startService(newIntent(MainActivity.this,FloatService.class));
finish();
}

}
}
}

对应Service:

publicclassFloatServiceextendsService{
@Nullable
@Override
publicIBinderonBind(Intentintent){
returnnull;
}

@Override
publicvoidonCreate(){
FloatViewUtils.getInstance(this).addFloatView();
super.onCreate();
}
}

简单地FloatView:

publicclassFloatViewextendsView{
publicstaticfinalintWIDTH=150;
publicstaticfinalintHEIGHT=150;
privatePaintcirclePaint;
privatePainttextPaint;
privatestaticfinalStringtext="50%";

publicFloatView(Contextcontext){
this(context,null,0);
}

publicFloatView(Contextcontext,@NullableAttributeSetattrs){
this(context,attrs,0);
}

publicFloatView(Contextcontext,@NullableAttributeSetattrs,intdefStyleAttr){
super(context,attrs,defStyleAttr);
initPaints();
}

/**
*@description初始化相关画笔Paint
*@authorldm
*@time2017/3/20
*/
privatevoidinitPaints(){
circlePaint=newPaint();
circlePaint.setAntiAlias(true);
circlePaint.setColor(Color.GRAY);
textPaint=newPaint();
//设置抗锯齿
textPaint.setAntiAlias(true);
//设置字体大小
textPaint.setTextSize(30);
//设置颜色
textPaint.setColor(Color.WHITE);
//设置（仿）粗体
textPaint.setFakeBoldText(true);
}

@Override
protectedvoidonMeasure(intwidthMeasureSpec,intheightMeasureSpec){
setMeasuredDimension(WIDTH,HEIGHT);
}

@Override
protectedvoidonDraw(Canvascanvas){
super.onDraw(canvas);
canvas.drawCircle(WIDTH/2,HEIGHT/2,WIDTH/2,circlePaint);
floattextWidth=textPaint.measureText(text);
floatx=WIDTH/2-textWidth/2;
Paint.FontMetricsfms=textPaint.getFontMetrics();
floatdy=-(fms.descent+fms.ascent)/2;
floaty=HEIGHT/2+dy;
canvas.drawText(text,x,y,textPaint);
}
}

以及FloatView管理工具类：

publicclassFloatViewUtils{
privatestaticFloatViewUtilsinstance;
privateContextmContext;
privateWindowManagermanager;
privateFloatViewfloatView;

privateFloatViewUtils(ContextmContext){
this.mContext=mContext;
manager=(WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE);
floatView=newFloatView(mContext);
}

publicstaticFloatViewUtilsgetInstance(ContextmContext){
if(null==instance){
synchronized(FloatViewUtils.class){
if(null==instance){
instance=newFloatViewUtils(mContext);
}
}
}
returninstance;
}

publicvoidaddFloatView(){
WindowManager.LayoutParamslp=newWindowManager.LayoutParams();
//悬浮窗口大小
lp.width=floatView.WIDTH;
lp.height=floatView.HEIGHT;
//调整悬浮窗口位置
lp.gravity=Gravity.LEFT|Gravity.CENTER;
//以屏幕左上角为原点，设置x、y初始值
//lp.x=0;
//lp.y=0;
//设置悬浮窗口类型
lp.type=WindowManager.LayoutParams.TYPE_PHONE;
//设置悬浮窗口不接受焦点及触摸事件
lp.flags=WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
//设置图片格式，效果为背景透明
lp.format=PixelFormat.RGBA_8888;
manager.addView(floatView,lp);
}
}

最后不要忘记在AndroidManifest.xml中添加权限（当然还有注册Service）：

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毛票票。

详解android6.0版本下悬浮窗实现

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