diff --git a/Android/Demo1/MyDialog.kt b/Android/Demo1/MyDialog.kt
new file mode 100644
index 0000000..e1ae6a1
--- /dev/null
+++ b/Android/Demo1/MyDialog.kt
@@ -0,0 +1,48 @@
+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+1440
+        //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()
+    }
+}
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