KotlinStudy/Android/Demo1/MyDialog.kt

import android.app.Activity
import android.app.Dialog
import android.graphics.Color
import android.os.Build
import android.view.Display
import android.view.Window
import android.view.WindowInsets
import android.view.WindowManager

class MyDialog(context: Activity) : Dialog(context) {
    private val activityContext:Activity= context
   
    private fun initView() {
        //获取display
        val display: Display = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
            context.display!!
        } else {
            activityContext.windowManager.defaultDisplay
        }
        //Android R后设置全屏的方式变了
        if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.R) {
            //全屏
            window!!.insetsController?.hide(WindowInsets.Type.statusBars())
            //保留状态栏
            window!!.insetsController?.hide(WindowInsets.Type.navigationBars())
        }else{
            window!!.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN)
        }
        //设置LayoutParams
        window!!.setLayout(WindowManager.LayoutParams.MATCH_PARENT,WindowManager.LayoutParams.MATCH_PARENT)
        //设置attribute
        val attributes = window?.attributes!!
        attributes.flags=WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
        window!!.attributes = attributes
        //设置高宽及padding
        window!!.decorView.minimumHeight=display.mode.physicalHeight
        window!!.decorView.minimumWidth=display.mode.physicalWidth
        //如果未设置背景颜色或设置在padding之后,则无法全屏，这里设置的透明底
        window!!.decorView.setBackgroundColor(Color.parseColor("#10000000"))
        window!!.decorView.setPadding(0,0,0,0)
    }
    override fun show() {
        //在展示前设置参数
        initView()
        super.show()
    }
}