Android-悬浮窗功能的实现（附Java、KT实现源码）

fun zoom(v: View) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (!Settings.canDrawOverlays(this)) {
Toast.makeText(this, “当前无权限，请授权”, Toast.LENGTH_SHORT)
GlobalDialogSingle(this, “”, “当前未获取悬浮窗权限”, “去开启”, DialogInterface.OnClickListener { dialog, which ->
dialog.dismiss()
startActivityForResult(Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse(“package:” + packageName)), 0)
}).show()

} else {
moveTaskToBack(true)
val intent = Intent(this@Main2Activity, FloatWinfowServices::class.java)
hasBind = bindService(intent, mVideoServiceConnection, Context.BIND_AUTO_CREATE)
}
}
}

internal var mVideoServiceConnection: ServiceConnection = object : ServiceConnection {

override fun onServiceConnected(name: ComponentName, service: IBinder) {
// 获取服务的操作对象
val binder = service as FloatWinfowServices.MyBinder
binder.service
}

override fun onServiceDisconnected(name: ComponentName) {}
}

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent) {
if (requestCode == 0) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (!Settings.canDrawOverlays(this)) {
Toast.makeText(this, “授权失败”, Toast.LENGTH_SHORT).show()
} else {
Handler().postDelayed({
val intent = Intent(this@Main2Activity, FloatWinfowServices::class.java)
intent.putExtra(“rangeTime”, rangeTime)
hasBind = bindService(intent, mVideoServiceConnection, Context.BIND_AUTO_CREATE)
moveTaskToBack(true)
}, 1000)

}
}
}
}

override fun onRestart() {
super.onRestart()
Log.d(“RemoteView”, “重新显示了”)
//不显示悬浮框
if (hasBind) {
unbindService(mVideoServiceConnection)
hasBind = false
}

}

override fun onNewIntent(intent: Intent) {
super.onNewIntent(intent)
}

override fun onDestroy() {
super.onDestroy()
}
}

• 新建悬浮窗Service

新建悬浮窗Service FloatWinfowServices，因为我们使用的BindService，我们在onBind方法中初始化service中的布局

override fun onBind(intent: Intent): IBinder? {
initWindow()
//悬浮框点击事件的处理
initFloating()
return MyBinder()
}

service中我们通过WindowManager来添加一个布局显示。

/**

• 初始化窗口
  */
  private fun initWindow() {
  winManager = application.getSystemSer