see 12/12 log

Author: Blankj

launcher/app/__bus__.json

@@ -1,4 +1,5 @@
 {
   "SubUtilActivity#start": "void com.blankj.subutil.pkg.feature.SubUtilActivity.start(android.content.Context)",
-  "CoreUtilActivity#start": "void com.blankj.utilcode.pkg.feature.CoreUtilActivity.start(android.content.Context)"
+  "CoreUtilActivity#start": "void com.blankj.utilcode.pkg.feature.CoreUtilActivity.start(android.content.Context)",
+  "showDialog": "void com.blankj.launcher.app.UtilsApp.showDialog()"
 }

launcher/app/src/main/java/com/blankj/launcher/app/UtilsApp.java

@@ -1,8 +1,21 @@
 package com.blankj.launcher.app;
 
+import android.app.Activity;
 import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.ImageView;
 
 import com.blankj.base.BaseApplication;
+import com.blankj.subutil.pkg.helper.DialogHelper;
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utilcode.util.BusUtils;
+import com.blankj.utilcode.util.ImageUtils;
+import com.blankj.utilcode.util.LogUtils;
+import com.blankj.utilcode.util.Utils;
 
 /**
  * <pre>
@@ -29,6 +42,54 @@ protected void attachBaseContext(Context base) {
     public void onCreate() {
         super.onCreate();
         sInstance = this;
+        AppUtils.registerAppStatusChangedListener(this, new Utils.OnAppStatusChangedListener() {
+            @Override
+            public void onForeground() {
+
+                LogUtils.i();
+            }
+
+            @Override
+            public void onBackground() {
+                Activity topActivity = ActivityUtils.getTopActivity();
+                if (topActivity == null) return;
+                View decorView = topActivity.getWindow().getDecorView();
+                Bitmap bitmapForView = getBitmapForView(decorView);
+                Bitmap bitmap = ImageUtils.fastBlur(bitmapForView, 0.125f, 2, true);
+
+
+                WindowManager windowManager = topActivity.getWindowManager();
+                WindowManager.LayoutParams mParams = new WindowManager.LayoutParams();
+
+                mParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_PANEL;
+                mParams.height = WindowManager.LayoutParams.MATCH_PARENT;
+                mParams.width = WindowManager.LayoutParams.MATCH_PARENT;
+                ImageView view = new ImageView(topActivity);
+                view.setImageBitmap(bitmap);
+                windowManager.addView(view, mParams);
+                LogUtils.i();
+            }
+        });
+    }
+
+
+
+    private Bitmap getBitmapForView(View src) {
+        Bitmap bitmap = Bitmap.createBitmap(
+                src.getWidth(),
+                src.getHeight(),
+                Bitmap.Config.ARGB_8888
+        );
+
+        Canvas canvas = new Canvas(bitmap);
+        src.draw(canvas);
+
+        return bitmap;
+    }
+
+    @BusUtils.Subscribe(name = "showDialog")
+    public static void showDialog(){
+        DialogHelper.showOpenAppSettingDialog();
     }
 }
 

launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.kt

@@ -51,6 +51,8 @@ class MainActivity : BaseDrawerActivity() {
         launcherMainSubUtilBtn.setOnClickListener {
             BusUtils.post<Any>("SubUtilActivity#start", this)
         }
+
+        BusUtils.post<Any>("showDialog")
     }
 
     override fun doBusiness() {

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

@@ -1108,17 +1108,16 @@ public static Bitmap fastBlur(final Bitmap src,
                                   @FloatRange(
                                           from = 0, to = 25, fromInclusive = false
                                   ) final float radius) {
-        return fastBlur(src, scale, radius, false);
+        return fastBlur(src, scale, radius, false, false);
     }
 
     /**
      * Return the blur bitmap fast.
      * <p>zoom out, blur, zoom in</p>
      *
-     * @param src     The source of bitmap.
-     * @param scale   The scale(0...1).
-     * @param radius  The radius(0...25).
-     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @param src    The source of bitmap.
+     * @param scale  The scale(0...1).
+     * @param radius The radius(0...25).
      * @return the blur bitmap
      */
     public static Bitmap fastBlur(final Bitmap src,
@@ -1129,6 +1128,29 @@ public static Bitmap fastBlur(final Bitmap src,
                                           from = 0, to = 25, fromInclusive = false
                                   ) final float radius,
                                   final boolean recycle) {
+        return fastBlur(src, scale, radius, recycle, false);
+    }
+
+    /**
+     * Return the blur bitmap fast.
+     * <p>zoom out, blur, zoom in</p>
+     *
+     * @param src           The source of bitmap.
+     * @param scale         The scale(0...1).
+     * @param radius        The radius(0...25).
+     * @param recycle       True to recycle the source of bitmap, false otherwise.
+     * @param isReturnScale True to return the scale blur bitmap, false otherwise.
+     * @return the blur bitmap
+     */
+    public static Bitmap fastBlur(final Bitmap src,
+                                  @FloatRange(
+                                          from = 0, to = 1, fromInclusive = false
+                                  ) final float scale,
+                                  @FloatRange(
+                                          from = 0, to = 25, fromInclusive = false
+                                  ) final float radius,
+                                  final boolean recycle,
+                                  final boolean isReturnScale) {
         if (isEmptyBitmap(src)) return null;
         int width = src.getWidth();
         int height = src.getHeight();
@@ -1152,7 +1174,12 @@ public static Bitmap fastBlur(final Bitmap src,
             if (recycle && !src.isRecycled()) src.recycle();
             return scaleBitmap;
         }
-        Bitmap ret = Bitmap.createScaledBitmap(scaleBitmap, width, height, true);
+        Bitmap ret;
+        if (isReturnScale) {
+            ret = scaleBitmap;
+        } else {
+            ret = Bitmap.createScaledBitmap(scaleBitmap, width, height, true);
+        }
         if (!scaleBitmap.isRecycled()) scaleBitmap.recycle();
         if (recycle && !src.isRecycled()) src.recycle();
         return ret;