From 812ca6909b29acf3c99cffcd30c8bd5c9fee13c9 Mon Sep 17 00:00:00 2001
From: Blankj <625783482@qq.com>
Date: Thu, 13 Dec 2018 21:37:37 +0800
Subject: [PATCH] see 12/13 log

---
 .../com/blankj/launcher/app/UtilsApp.java     |  32 ----
 .../com/blankj/launcher/pkg/MainActivity.kt   |  67 ++-------
 lib/base/build.gradle                         |   1 -
 lib/base/src/main/res/values-v27/styles.xml   |   2 +-
 lib/base/src/main/res/values/styles.xml       |   2 +-
 settings.gradle                               |   4 +-
 .../java/com/blankj/utilcode/util/Utils.java  |  10 +-
 utilcode/pkg/build.gradle                     |   1 +
 utilcode/pkg/src/main/AndroidManifest.xml     |   8 +-
 .../src/main/assets/fonts/dnmbhs.ttf          | Bin
 .../src/main/assets/test/sub/test.txt         |   0
 .../src/main/assets/test/test.txt             |   0
 .../{app => pkg}/src/main/assets/test_install | Bin
 .../pkg/feature/CoreUtilActivity.java         |   7 +-
 .../pkg/feature/blur/BlurActivity.java        | 141 ++++++++++++++++++
 .../pkg/feature/blur/InputReceiver.java       |  51 +++++++
 .../pkg/feature/blur/TransparentActivity.java |  30 ++++
 .../pkg/src/main/res/layout/activity_blur.xml |  18 +++
 .../main/res/layout/activity_util_core.xml    |   7 +
 utilcode/pkg/src/main/res/values/strings.xml  |   4 +
 20 files changed, 283 insertions(+), 102 deletions(-)
 rename utilcode/{app => pkg}/src/main/assets/fonts/dnmbhs.ttf (100%)
 rename utilcode/{app => pkg}/src/main/assets/test/sub/test.txt (100%)
 rename utilcode/{app => pkg}/src/main/assets/test/test.txt (100%)
 rename utilcode/{app => pkg}/src/main/assets/test_install (100%)
 create mode 100644 utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/BlurActivity.java
 create mode 100644 utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/InputReceiver.java
 create mode 100644 utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/TransparentActivity.java
 create mode 100644 utilcode/pkg/src/main/res/layout/activity_blur.xml

diff --git a/launcher/app/src/main/java/com/blankj/launcher/app/UtilsApp.java b/launcher/app/src/main/java/com/blankj/launcher/app/UtilsApp.java
index aa6cd1ec5f..7ba1e87325 100644
--- a/launcher/app/src/main/java/com/blankj/launcher/app/UtilsApp.java
+++ b/launcher/app/src/main/java/com/blankj/launcher/app/UtilsApp.java
@@ -1,22 +1,15 @@
 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.ViewGroup;
-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.ScreenUtils;
 import com.blankj.utilcode.util.Utils;
 
 /**
@@ -44,26 +37,6 @@ protected void attachBaseContext(Context base) {
     public void onCreate() {
         super.onCreate();
         sInstance = this;
-        AppUtils.registerAppStatusChangedListener(this, new Utils.OnAppStatusChangedListener() {
-            @Override
-            public void onForeground() {
-//                Activity topActivity = ActivityUtils.getTopActivity();
-//                if (topActivity == null) return;
-//                ViewGroup decorView = (ViewGroup) topActivity.getWindow().getDecorView();
-//                View blur = decorView.findViewWithTag("blur");
-//                if (blur == null) return;
-//                decorView.removeView(blur);
-
-                LogUtils.i();
-            }
-
-            @Override
-            public void onBackground() {
-
-
-                LogUtils.i();
-            }
-        });
     }
 
 
@@ -79,11 +52,6 @@ private Bitmap getBitmapForView(View src) {
 
         return bitmap;
     }
-
-    @BusUtils.Subscribe(name = "showDialog")
-    public static void showDialog() {
-        DialogHelper.showOpenAppSettingDialog();
-    }
 }
 
 
diff --git a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.kt b/launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.kt
index 6df55ef848..a0595ba7ef 100644
--- a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.kt
+++ b/launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.kt
@@ -1,22 +1,23 @@
 package com.blankj.launcher.pkg
 
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
 import android.graphics.Color
-import android.opengl.Visibility
 import android.os.Bundle
 import android.support.v7.app.ActionBarDrawerToggle
+import android.view.KeyEvent
 import android.view.View
-import android.view.ViewGroup
-import android.view.WindowManager
 import android.widget.ImageView
 import com.blankj.base.BaseDrawerActivity
 import com.blankj.launcher.R
-import com.blankj.utilcode.util.ActivityUtils
-import com.blankj.utilcode.util.BarUtils
-import com.blankj.utilcode.util.BusUtils
-import com.blankj.utilcode.util.ImageUtils
+import com.blankj.utilcode.util.*
 import kotlinx.android.synthetic.main.activity_main.*
 
 
+
+
 /**
  * ```
  * author: Blankj
@@ -56,26 +57,9 @@ class MainActivity : BaseDrawerActivity() {
         }
 
         launcherMainSubUtilBtn.setOnClickListener {
-            BusUtils.post<Any>("showDialog")
-//            BusUtils.post<Any>("SubUtilActivity#start", this)
+            BusUtils.post<Any>("SubUtilActivity#start", this)
         }
-
-
-        contentView.post(Runnable {
-            val topActivity = ActivityUtils.getTopActivity() ?: return@Runnable
-            val decorView = topActivity.window.decorView as ViewGroup
-            val bitmapForView = ImageUtils.view2Bitmap(decorView)
-
-            val bitmap = ImageUtils.fastBlur(bitmapForView, 0.125f, 2f, true, true)
-
-            view = ImageView(topActivity)
-            view?.setImageBitmap(bitmap)
-            view?.tag = "blur"
-            decorView.addView(view, ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT))
-            view?.visibility = View.GONE
-        })
-
-        getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND, WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
+//        getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
 
     }
 
@@ -90,35 +74,4 @@ class MainActivity : BaseDrawerActivity() {
     override fun onBackPressed() {
         ActivityUtils.startHomeActivity()
     }
-
-    override fun onResume() {
-        view?.visibility = View.GONE
-        super.onResume()
-    }
-
-    override fun onPause() {
-        view?.visibility = View.VISIBLE
-//        val topActivity = ActivityUtils.getTopActivity() ?: return
-//        val decorView = topActivity.window.decorView as ViewGroup
-//        val bitmapForView = ImageUtils.view2Bitmap(decorView)
-//
-//        val bitmap = ImageUtils.fastBlur(bitmapForView, 0.125f, 2f, true, true)
-//
-//        val view = ImageView(topActivity)
-//        view.setImageBitmap(bitmap)
-//        view.tag = "blur"
-//        decorView.addView(view, ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT))
-//        val windowManager = topActivity.windowManager
-//        val mParams = WindowManager.LayoutParams()
-//
-//        mParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_PANEL
-//        mParams.height = WindowManager.LayoutParams.MATCH_PARENT
-//        mParams.width = WindowManager.LayoutParams.MATCH_PARENT
-//
-//        val view = ImageView(topActivity)
-//        view.setImageBitmap(bitmap)
-//        view.tag = "blur"
-//        windowManager.addView(view, mParams)
-        super.onPause()
-    }
 }
diff --git a/lib/base/build.gradle b/lib/base/build.gradle
index 2969515ecc..a73b5cbb12 100644
--- a/lib/base/build.gradle
+++ b/lib/base/build.gradle
@@ -5,7 +5,6 @@ apply {
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     api project(':utilcode-lib')
-    api project(':subutil-lib')
 
     api dep.support.appcompat_v7
     api dep.support.design
diff --git a/lib/base/src/main/res/values-v27/styles.xml b/lib/base/src/main/res/values-v27/styles.xml
index 5bff7f9152..4c19777add 100644
--- a/lib/base/src/main/res/values-v27/styles.xml
+++ b/lib/base/src/main/res/values-v27/styles.xml
@@ -1,7 +1,7 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
diff --git a/lib/base/src/main/res/values/styles.xml b/lib/base/src/main/res/values/styles.xml
index fb4e9fc16f..4c19777add 100644
--- a/lib/base/src/main/res/values/styles.xml
+++ b/lib/base/src/main/res/values/styles.xml
@@ -1,7 +1,7 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.DayNight">
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
diff --git a/settings.gradle b/settings.gradle
index 7d6f0a3b3d..d831ae9f43 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,9 +1,9 @@
 includeModule\
         ':buildSrc',
         ':bus-gradle-plugin',
-        ':launcher',
+        ':-launcher',
         ':lib',
-        ':subutil',
+        ':-subutil',
         ':utilcode'
 
 // 如果 name 以 '-' 开头，则剔除在外
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/Utils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/Utils.java
index 8311c7a604..c84f6e6074 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/Utils.java
+++ b/utilcode/lib/src/main/java/com/blankj/utilcode/util/Utils.java
@@ -204,6 +204,11 @@ public void onActivityResumed(Activity activity) {
 
         @Override
         public void onActivityPaused(Activity activity) {/**/
+
+        }
+
+        @Override
+        public void onActivityStopped(Activity activity) {
             if (activity.isChangingConfigurations()) {
                 --mConfigCount;
             } else {
@@ -214,11 +219,6 @@ public void onActivityPaused(Activity activity) {/**/
             }
         }
 
-        @Override
-        public void onActivityStopped(Activity activity) {
-
-        }
-
         @Override
         public void onActivitySaveInstanceState(Activity activity, Bundle outState) {/**/}
 
diff --git a/utilcode/pkg/build.gradle b/utilcode/pkg/build.gradle
index e7139d7e47..e637f86d7d 100644
--- a/utilcode/pkg/build.gradle
+++ b/utilcode/pkg/build.gradle
@@ -5,4 +5,5 @@ apply {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     api project(':lib-base')
+    api 'com.jaredrummler:android-processes:1.1.1'
 }
diff --git a/utilcode/pkg/src/main/AndroidManifest.xml b/utilcode/pkg/src/main/AndroidManifest.xml
index 0651627050..b7560a2adc 100644
--- a/utilcode/pkg/src/main/AndroidManifest.xml
+++ b/utilcode/pkg/src/main/AndroidManifest.xml
@@ -89,6 +89,13 @@
         <activity
             android:name=".pkg.feature.bar.BarStatusSwipeBackActivity"
             android:launchMode="singleTop" />
+        <activity
+            android:name=".pkg.feature.blur.BlurActivity"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".pkg.feature.blur.TransparentActivity"
+            android:theme="@style/ActivityTranslucent"
+            android:launchMode="singleTop" />
         <activity
             android:name=".pkg.feature.clean.CleanActivity"
             android:launchMode="singleTop" />
@@ -156,7 +163,6 @@
         <meta-data
             android:name="app_meta_data"
             android:value="AppMetaData" />
-
     </application>
 
 
diff --git a/utilcode/app/src/main/assets/fonts/dnmbhs.ttf b/utilcode/pkg/src/main/assets/fonts/dnmbhs.ttf
similarity index 100%
rename from utilcode/app/src/main/assets/fonts/dnmbhs.ttf
rename to utilcode/pkg/src/main/assets/fonts/dnmbhs.ttf
diff --git a/utilcode/app/src/main/assets/test/sub/test.txt b/utilcode/pkg/src/main/assets/test/sub/test.txt
similarity index 100%
rename from utilcode/app/src/main/assets/test/sub/test.txt
rename to utilcode/pkg/src/main/assets/test/sub/test.txt
diff --git a/utilcode/app/src/main/assets/test/test.txt b/utilcode/pkg/src/main/assets/test/test.txt
similarity index 100%
rename from utilcode/app/src/main/assets/test/test.txt
rename to utilcode/pkg/src/main/assets/test/test.txt
diff --git a/utilcode/app/src/main/assets/test_install b/utilcode/pkg/src/main/assets/test_install
similarity index 100%
rename from utilcode/app/src/main/assets/test_install
rename to utilcode/pkg/src/main/assets/test_install
diff --git a/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/CoreUtilActivity.java b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/CoreUtilActivity.java
index aa949b70df..a3f0f8f9ea 100644
--- a/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/CoreUtilActivity.java
+++ b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/CoreUtilActivity.java
@@ -12,6 +12,7 @@
 import com.blankj.utilcode.pkg.feature.adaptScreen.AdaptScreenActivity;
 import com.blankj.utilcode.pkg.feature.app.AppActivity;
 import com.blankj.utilcode.pkg.feature.bar.BarActivity;
+import com.blankj.utilcode.pkg.feature.blur.BlurActivity;
 import com.blankj.utilcode.pkg.feature.clean.CleanActivity;
 import com.blankj.utilcode.pkg.feature.device.DeviceActivity;
 import com.blankj.utilcode.pkg.feature.fragment.FragmentActivity;
@@ -32,7 +33,6 @@
 import com.blankj.utilcode.pkg.feature.span.SpanActivity;
 import com.blankj.utilcode.pkg.feature.toast.ToastActivity;
 import com.blankj.utilcode.util.BusUtils;
-import com.blankj.utilcode.util.Utils;
 
 /**
  * <pre>
@@ -62,7 +62,6 @@ public int bindLayout() {
 
     @Override
     public void initView(Bundle savedInstanceState, View contentView) {
-        Utils.getApp();
         setTitle(R.string.core_util);
     }
 
@@ -96,6 +95,10 @@ public void barClick(View view) {
         BarActivity.start(this);
     }
 
+    public void blurClick(View view) {
+        BlurActivity.start(this);
+    }
+
     public void cleanClick(View view) {
         CleanActivity.start(this);
     }
diff --git a/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/BlurActivity.java b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/BlurActivity.java
new file mode 100644
index 0000000000..719ebb1267
--- /dev/null
+++ b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/BlurActivity.java
@@ -0,0 +1,141 @@
+package com.blankj.utilcode.pkg.feature.blur;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+import android.widget.ImageView;
+
+import com.blankj.base.BaseBackActivity;
+import com.blankj.utilcode.R;
+import com.blankj.utilcode.pkg.helper.DialogHelper;
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utilcode.util.ImageUtils;
+import com.blankj.utilcode.util.LogUtils;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/12/13
+ *     desc  :
+ * </pre>
+ */
+public class BlurActivity extends BaseBackActivity {
+
+    public static void start(Context context) {
+        Intent starter = new Intent(context, BlurActivity.class);
+        starter.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        context.startActivity(starter);
+    }
+
+    @Override
+    public void initData(@Nullable Bundle bundle) {
+
+    }
+
+    @Override
+    public int bindLayout() {
+        this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
+        return R.layout.activity_blur;
+    }
+
+    @Override
+    public void initView(@Nullable Bundle savedInstanceState, @NotNull View contentView) {
+        setTitle(R.string.demo_blur);
+    }
+
+    @Override
+    public void doBusiness() {
+//        AppUtils.registerAppStatusChangedListener(this, new Utils.OnAppStatusChangedListener() {
+//            @Override
+//            public void onForeground() {
+//                BlurActivity.leave(false);
+//            }
+//
+//            @Override
+//            public void onBackground() {
+//                BlurActivity.leave(true);
+//            }
+//        });
+        mContentView.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                DialogHelper.showAdaptScreenDialog();
+            }
+        }, 1000);
+
+    }
+
+    @Override
+    protected void onDestroy() {
+        AppUtils.unregisterAppStatusChangedListener(this);
+        super.onDestroy();
+    }
+
+    @Override
+    public void onWidgetClick(@NotNull View view) {
+
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+    }
+
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        if (hasFocus) {
+            leave(false);
+            LogUtils.e();
+        } else {
+            leave(true);
+            LogUtils.e();
+        }
+        super.onWindowFocusChanged(hasFocus);
+    }
+
+    @Override
+    protected void onUserLeaveHint() {
+        leave(true);
+        LogUtils.e();
+        super.onUserLeaveHint();
+    }
+
+
+    public static void leave(boolean isBlur) {
+        Activity topActivity = ActivityUtils.getTopActivity();
+        if (topActivity == null) return;
+        ViewGroup decorView = (ViewGroup) topActivity.getWindow().getDecorView();
+        View blur = decorView.findViewWithTag("blur");
+        if (blur == null) {
+            if (isBlur) {
+                Bitmap bitmapForView = ImageUtils.view2Bitmap(decorView);
+
+                Bitmap bitmap = ImageUtils.fastBlur(bitmapForView, 0.125f, 2f, true, true);
+
+                ImageView view = new ImageView(topActivity);
+                view.setImageBitmap(bitmap);
+                view.setTag("blur");
+                decorView.addView(
+                        view,
+                        new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
+                );
+                TransparentActivity.start();
+            }
+        } else {
+            if (!isBlur) {
+                decorView.removeView(blur);
+            }
+        }
+    }
+
+}
diff --git a/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/InputReceiver.java b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/InputReceiver.java
new file mode 100644
index 0000000000..9e100c4552
--- /dev/null
+++ b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/InputReceiver.java
@@ -0,0 +1,51 @@
+package com.blankj.utilcode.pkg.feature.blur;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+
+import com.blankj.utilcode.util.LogUtils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/12/13
+ *     desc  :
+ * </pre>
+ */
+public class InputReceiver extends BroadcastReceiver {
+
+    public static void register(Context context) {
+        InputReceiver innerReceiver = new InputReceiver();
+        IntentFilter intentFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
+        intentFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
+        context.registerReceiver(innerReceiver, intentFilter);
+    }
+
+    final String SYSTEM_DIALOG_REASON_KEY = "reason";
+
+    final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";
+
+    final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        String action = intent.getAction();
+        if (Intent.ACTION_CLOSE_SYSTEM_DIALOGS.equals(action)) {
+            String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
+            if (reason != null) {
+                if (reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {
+                    BlurActivity.leave(true);
+                    TransparentActivity.start();
+                    LogUtils.e();
+                } else if (reason.equals(SYSTEM_DIALOG_REASON_RECENT_APPS)) {
+                    BlurActivity.leave(true);
+                    TransparentActivity.start();
+                    LogUtils.e();
+                }
+            }
+        }
+    }
+}
diff --git a/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/TransparentActivity.java b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/TransparentActivity.java
new file mode 100644
index 0000000000..e608c57fbe
--- /dev/null
+++ b/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/blur/TransparentActivity.java
@@ -0,0 +1,30 @@
+package com.blankj.utilcode.pkg.feature.blur;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+
+import com.blankj.utilcode.util.Utils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/12/13
+ *     desc  :
+ * </pre>
+ */
+public class TransparentActivity extends Activity {
+
+    public static void start() {
+        Intent starter = new Intent(Utils.getApp(), TransparentActivity.class);
+        starter.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        Utils.getApp().startActivity(starter);
+    }
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+}
diff --git a/utilcode/pkg/src/main/res/layout/activity_blur.xml b/utilcode/pkg/src/main/res/layout/activity_blur.xml
new file mode 100644
index 0000000000..90b688fcbb
--- /dev/null
+++ b/utilcode/pkg/src/main/res/layout/activity_blur.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_horizontal"
+    android:orientation="vertical"
+    android:padding="@dimen/spacing_16">
+
+    <TextView
+        style="@style/TextStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center_horizontal"
+        android:text="@string/blur_text" />
+
+
+</LinearLayout>
diff --git a/utilcode/pkg/src/main/res/layout/activity_util_core.xml b/utilcode/pkg/src/main/res/layout/activity_util_core.xml
index 0889b514a8..496e955c15 100644
--- a/utilcode/pkg/src/main/res/layout/activity_util_core.xml
+++ b/utilcode/pkg/src/main/res/layout/activity_util_core.xml
@@ -35,6 +35,13 @@
         android:onClick="barClick"
         android:text="@string/demo_bar" />
 
+    <Button
+        style="@style/WideBtnStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:onClick="blurClick"
+        android:text="@string/demo_blur" />
+
     <Button
         style="@style/WideBtnStyle"
         android:layout_width="match_parent"
diff --git a/utilcode/pkg/src/main/res/values/strings.xml b/utilcode/pkg/src/main/res/values/strings.xml
index 31820cab5b..2af363d1e5 100644
--- a/utilcode/pkg/src/main/res/values/strings.xml
+++ b/utilcode/pkg/src/main/res/values/strings.xml
@@ -4,6 +4,7 @@
     <string name="demo_adapt_screen">AdaptScreenUtils Demo</string>
     <string name="demo_app">AppUtils Demo</string>
     <string name="demo_bar">BarUtils Demo</string>
+    <string name="demo_blur">BlurUtils Demo</string>
     <string name="demo_clean">CleanUtils Demo</string>
     <string name="demo_crash">CrashUtils Demo</string>
     <string name="demo_device">DeviceUtils Demo</string>
@@ -107,6 +108,9 @@
     <string name="bar_nav_immersive">Immersive Nav</string>
     <string name="bar_nav_color">Set Nav Color Random</string>
 
+    <!--Blur 相关-->
+    <string name="blur_text">Blur Text</string>
+
     <!--Clean 相关-->
     <string name="clean_internal_cache">Clean Internal Cache</string>
     <string name="clean_internal_files">Clean Internal Files</string>