change style

app/src/main/java/com/lizongying/mytv/MyApplication.kt

@@ -1,6 +1,23 @@
 package com.lizongying.mytv
 
 import android.app.Application
+import android.content.Context
+import android.util.DisplayMetrics
+import android.view.WindowManager
 
 class MyApplication : Application() {
+    private lateinit var displayMetrics: DisplayMetrics
+
+    override fun onCreate() {
+        super.onCreate()
+
+        displayMetrics = DisplayMetrics()
+        val windowManager = getSystemService(Context.WINDOW_SERVICE) as WindowManager
+//        windowManager.defaultDisplay.getRealMetrics(displayMetrics)
+        windowManager.defaultDisplay.getMetrics(displayMetrics)
+    }
+
+    fun getDisplayMetrics(): DisplayMetrics {
+        return displayMetrics
+    }
 }