see 08/18 log

utilcode/lib/src/main/java/com/blankj/utilcode/util/ScreenUtils.java

@@ -41,12 +41,11 @@ public final class ScreenUtils {
      */
     public static int getScreenWidth() {
         WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
         Point point = new Point();
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            //noinspection ConstantConditions
             wm.getDefaultDisplay().getRealSize(point);
         } else {
-            //noinspection ConstantConditions
             wm.getDefaultDisplay().getSize(point);
         }
         return point.x;
@@ -59,17 +58,42 @@ public final class ScreenUtils {
      */
     public static int getScreenHeight() {
         WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
         Point point = new Point();
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            //noinspection ConstantConditions
             wm.getDefaultDisplay().getRealSize(point);
         } else {
-            //noinspection ConstantConditions
             wm.getDefaultDisplay().getSize(point);
         }
         return point.y;
     }
 
+    /**
+     * Return the application's width of screen, in pixel.
+     *
+     * @return the application's width of screen, in pixel
+     */
+    public static int getAppScreenWidth() {
+        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
+        Point point = new Point();
+        wm.getDefaultDisplay().getSize(point);
+        return point.x;
+    }
+
+    /**
+     * Return the application's height of screen, in pixel.
+     *
+     * @return the application's height of screen, in pixel
+     */
+    public static int getAppScreenHeight() {
+        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
+        Point point = new Point();
+        wm.getDefaultDisplay().getSize(point);
+        return point.y;
+    }
+
     /**
      * Return the density of screen.
      *

utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/screen/ScreenActivity.kt

@@ -95,6 +95,8 @@ class ScreenActivity : BaseTitleActivity() {
         SpanUtils.with(screenAboutTv)
                 .appendLine("getScreenWidth: " + ScreenUtils.getScreenWidth())
                 .appendLine("getScreenHeight: " + ScreenUtils.getScreenHeight())
+                .appendLine("getAppScreenWidth: " + ScreenUtils.getAppScreenWidth())
+                .appendLine("getAppScreenHeight: " + ScreenUtils.getAppScreenHeight())
                 .appendLine("getScreenDensity: " + ScreenUtils.getScreenDensity())
                 .appendLine("getScreenDensityDpi: " + ScreenUtils.getScreenDensityDpi())
                 .appendLine("isFullScreen: " + ScreenUtils.isFullScreen(this))

utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/helper/DialogHelper.kt

 package com.blankj.utilcode.pkg.helper
 
 import android.graphics.Bitmap
+import android.graphics.drawable.ColorDrawable
 import android.support.v7.app.AlertDialog
 import android.text.method.ScrollingMovementMethod
+import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
+import android.view.Window
 import android.widget.Button
 import android.widget.EditText
 import android.widget.ImageView
 import android.widget.TextView
 import com.blankj.utilcode.pkg.R
-import com.blankj.utilcode.util.ActivityUtils
-import com.blankj.utilcode.util.KeyboardUtils
-import com.blankj.utilcode.util.PermissionUtils
+import com.blankj.utilcode.util.*
 import com.blankj.utilcode.util.PermissionUtils.OnRationaleListener.ShouldRequest
-import com.blankj.utilcode.util.ToastUtils
 
 /**
  * ```
@@ -56,7 +56,9 @@ object DialogHelper {
         val topActivity = ActivityUtils.getTopActivity()
         if (!ActivityUtils.isActivityAlive(topActivity)) return
         val dialogView = LayoutInflater.from(topActivity).inflate(R.layout.dialog_keyboard, null)
-        val dialog = AlertDialog.Builder(topActivity).setView(dialogView).create()
+        val dialog = AlertDialog.Builder(topActivity)
+                .setView(dialogView)
+                .create()
         dialog.setCanceledOnTouchOutside(false)
         val keyboardDialogEt = dialogView.findViewById<EditText>(R.id.keyboardDialogEt)
         val listener = View.OnClickListener { v ->
@@ -74,15 +76,18 @@ object DialogHelper {
         dialogView.findViewById<View>(R.id.keyboardDialogShowSoftInputBtn).setOnClickListener(listener)
         dialogView.findViewById<View>(R.id.keyboardDialogToggleSoftInputBtn).setOnClickListener(listener)
         dialogView.findViewById<View>(R.id.keyboardDialogCloseBtn).setOnClickListener(listener)
-        dialog.show()
 
-//        val attributes = dialog.window.attributes
-//        attributes.y = SizeUtils.dp2px(300f)
-//        attributes.height = ScreenUtils.getScreenHeight() / 2
-//        dialog.window.attributes = attributes
-//        dialog.window.decorView.setPadding(0, 0, 0, 0)
+        val window = dialog.window
+        window.requestFeature(Window.FEATURE_NO_TITLE)
+
+        dialog.show()
 
-        KeyboardUtils.fixAndroidBug5497(dialog.window)
+        window.setBackgroundDrawable(ColorDrawable(0))
+        val attributes = dialog.window.attributes
+        attributes.gravity = Gravity.BOTTOM
+        attributes.width = ScreenUtils.getAppScreenWidth()
+        attributes.height = ScreenUtils.getAppScreenHeight() //* 2 / 5
+        dialog.window.attributes = attributes
     }
 
     fun showFragmentDialog(info: CharSequence) {

utilcode/pkg/src/main/res/layout/dialog_keyboard.xml

@@ -3,6 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="@color/mediumGray"
     android:fillViewport="true">
 
     <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"