am 1420cfbf: am 2146dc79: am 0ad9e247: Merge "Add new wallpaper features for insets and offsets." into lmp-dev

* commit '1420cfbf788fa9272f43231c15be29f7febdcde3':
  Add new wallpaper features for insets and offsets.

12 files changed, 831 insertions, 0 deletions

diff --git a/tests/WallpaperTest/Android.mk b/tests/WallpaperTest/Android.mk
new file mode 100644
index 0000000..b4259cd
--- /dev/null
+++ b/tests/WallpaperTest/Android.mk
@@ -0,0 +1,15 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+
+LOCAL_PACKAGE_NAME := WallpaperTest
+
+LOCAL_PROGUARD_ENABLED := disabled
+
+include $(BUILD_PACKAGE)
+
diff --git a/tests/WallpaperTest/AndroidManifest.xml b/tests/WallpaperTest/AndroidManifest.xml
new file mode 100644
index 0000000..4c914dd
--- /dev/null
+++ b/tests/WallpaperTest/AndroidManifest.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.wallpapertest" >
+
+    <uses-permission android:name="android.permission.SET_WALLPAPER_HINTS" />
+
+    <application
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:label="@string/test_wallpaper"
+            android:name=".TestWallpaper"
+            android:permission="android.permission.BIND_WALLPAPER"
+            android:enabled="true">
+            <intent-filter>
+                <action android:name="android.service.wallpaper.WallpaperService" />
+            </intent-filter>
+            <meta-data android:name="android.service.wallpaper"
+                       android:resource="@xml/test_wallpaper" />
+        </service>
+    </application>
+</manifest>
diff --git a/tests/WallpaperTest/res/drawable-hdpi/test_wallpaper_thumb.png b/tests/WallpaperTest/res/drawable-hdpi/test_wallpaper_thumb.png
new file mode 100644
index 0000000..df92eb5
--- /dev/null
+++ b/tests/WallpaperTest/res/drawable-hdpi/test_wallpaper_thumb.png
diff --git a/tests/WallpaperTest/res/layout/activity_main.xml b/tests/WallpaperTest/res/layout/activity_main.xml
new file mode 100644
index 0000000..d968396
--- /dev/null
+++ b/tests/WallpaperTest/res/layout/activity_main.xml
@@ -0,0 +1,177 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/window_background">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/dimens"/>
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="15dp"
+                android:textSize="17sp"
+                android:text="@string/width"/>
+            <EditText
+                android:id="@+id/dimen_width"
+                android:layout_width="60sp"
+                android:layout_height="wrap_content"
+                android:inputType="numberDecimal"/>
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="15dp"
+                android:textSize="17sp"
+                android:text="@string/height"/>
+            <EditText
+                android:id="@+id/dimen_height"
+                android:layout_width="60sp"
+                android:layout_height="wrap_content"
+                android:inputType="numberDecimal"/>
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/wallpaper_offset"/>
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="15dp"
+                android:textSize="17sp"
+                android:text="@string/x"/>
+            <EditText
+                android:id="@+id/walloff_x"
+                android:layout_width="60sp"
+                android:layout_height="wrap_content"
+                android:inputType="numberDecimal"/>
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="15dp"
+                android:textSize="17sp"
+                android:text="@string/y"/>
+            <EditText
+                android:id="@+id/walloff_y"
+                android:layout_width="60sp"
+                android:layout_height="wrap_content"
+                android:inputType="numberDecimal"/>
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/padding"/>
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical">
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginLeft="15dp"
+                        android:textSize="17sp"
+                        android:text="@string/left"/>
+                    <EditText
+                        android:id="@+id/padding_left"
+                        android:layout_width="60sp"
+                        android:layout_height="wrap_content"
+                        android:inputType="number"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginLeft="15dp"
+                        android:textSize="17sp"
+                        android:text="@string/right"/>
+                    <EditText
+                        android:id="@+id/padding_right"
+                        android:layout_width="60sp"
+                        android:layout_height="wrap_content"
+                        android:inputType="number"/>
+                </LinearLayout>
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginLeft="15dp"
+                        android:textSize="17sp"
+                        android:text="@string/top"/>
+                    <EditText
+                        android:id="@+id/padding_top"
+                        android:layout_width="60sp"
+                        android:layout_height="wrap_content"
+                        android:inputType="number"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginLeft="15dp"
+                        android:textSize="17sp"
+                        android:text="@string/bottom"/>
+                    <EditText
+                        android:id="@+id/padding_bottom"
+                        android:layout_width="60sp"
+                        android:layout_height="wrap_content"
+                        android:inputType="number"/>
+                </LinearLayout>
+            </LinearLayout>
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/display_offset"/>
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="15dp"
+                android:textSize="17sp"
+                android:text="@string/x"/>
+            <EditText
+                android:id="@+id/dispoff_x"
+                android:layout_width="60sp"
+                android:layout_height="wrap_content"
+                android:inputType="numberSigned"/>
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="15dp"
+                android:textSize="17sp"
+                android:text="@string/y"/>
+            <EditText
+                android:id="@+id/dispoff_y"
+                android:layout_width="60sp"
+                android:layout_height="wrap_content"
+                android:inputType="numberSigned"/>
+        </LinearLayout>
+    </LinearLayout>
+</ScrollView>
diff --git a/tests/WallpaperTest/res/values-v11/styles.xml b/tests/WallpaperTest/res/values-v11/styles.xml
new file mode 100644
index 0000000..95000b2
--- /dev/null
+++ b/tests/WallpaperTest/res/values-v11/styles.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2013 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<resources>
+
+    <!--
+        Base application theme for API 11+. This theme completely replaces
+        AppBaseTheme from res/values/styles.xml on API 11+ devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Holo.Wallpaper">
+        <!-- API 11 theme customizations can go here. -->
+    </style>
+
+</resources>
\ No newline at end of file
diff --git a/tests/WallpaperTest/res/values-v21/styles.xml b/tests/WallpaperTest/res/values-v21/styles.xml
new file mode 100644
index 0000000..e42d526
--- /dev/null
+++ b/tests/WallpaperTest/res/values-v21/styles.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2013 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<resources>
+
+    <!--
+        Base application theme for API 21+. This theme completely replaces
+        AppBaseTheme from BOTH res/values/styles.xml and
+        res/values-v11/styles.xml on API 14+ devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Material.Wallpaper">
+        <!-- API 14 theme customizations can go here. -->
+    </style>
+
+</resources>
\ No newline at end of file
diff --git a/tests/WallpaperTest/res/values/colors.xml b/tests/WallpaperTest/res/values/colors.xml
new file mode 100644
index 0000000..8c08249
--- /dev/null
+++ b/tests/WallpaperTest/res/values/colors.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2014 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<resources>
+    <color name="window_background">#80000000</color>
+</resources>
\ No newline at end of file
diff --git a/tests/WallpaperTest/res/values/strings.xml b/tests/WallpaperTest/res/values/strings.xml
new file mode 100644
index 0000000..fd21259
--- /dev/null
+++ b/tests/WallpaperTest/res/values/strings.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">Wallpaper Test</string>
+
+    <string name="test_wallpaper">Test Wallpaper</string>
+    <string name="test_wallpaper_author">Google</string>
+    <string name="test_wallpaper_desc">
+        Test wallpaper for use with the wallpaper test app.
+    </string>
+
+    <string name="dimens">Dimens: </string>
+    <string name="width">Width: </string>
+    <string name="height">Height: </string>
+
+    <string name="wallpaper_offset">Wall off: </string>
+    <string name="x">X: </string>
+    <string name="y">Y: </string>
+
+    <string name="padding">Padding: </string>
+    <string name="left">Left: </string>
+    <string name="right">Right: </string>
+    <string name="top">Top: </string>
+    <string name="bottom">Bottom: </string>
+
+    <string name="display_offset">Disp off: </string>
+</resources>
diff --git a/tests/WallpaperTest/res/values/styles.xml b/tests/WallpaperTest/res/values/styles.xml
new file mode 100644
index 0000000..d2b91d6
--- /dev/null
+++ b/tests/WallpaperTest/res/values/styles.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2013 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<resources>
+
+    <!--
+        Base application theme, dependent on API level. This theme is replaced
+        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Wallpaper">
+        <!--
+            Theme customizations available in newer API levels can go in
+            res/values-vXX/styles.xml, while customizations related to
+            backward-compatibility can go here.
+        -->
+    </style>
+
+    <!-- Application theme. -->
+    <style name="AppTheme" parent="AppBaseTheme">
+        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
+    </style>
+
+</resources>
\ No newline at end of file
diff --git a/tests/WallpaperTest/res/xml/test_wallpaper.xml b/tests/WallpaperTest/res/xml/test_wallpaper.xml
new file mode 100644
index 0000000..9f7d714
--- /dev/null
+++ b/tests/WallpaperTest/res/xml/test_wallpaper.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2008, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); 
+ * you may not use this file except in compliance with the License. 
+ * You may obtain a copy of the License at 
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0 
+ *
+ * Unless required by applicable law or agreed to in writing, software 
+ * distributed under the License is distributed on an "AS IS" BASIS, 
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+ * See the License for the specific language governing permissions and 
+ * limitations under the License.
+ */
+-->
+
+<!-- The attributes in this XML file provide configuration information -->
+<!-- about the polar clock. -->
+
+<wallpaper xmlns:android="http://schemas.android.com/apk/res/android"
+    android:author="@string/test_wallpaper_author"
+    android:description="@string/test_wallpaper_desc"
+    android:thumbnail="@drawable/test_wallpaper_thumb" />
diff --git a/tests/WallpaperTest/src/com/example/wallpapertest/MainActivity.java b/tests/WallpaperTest/src/com/example/wallpapertest/MainActivity.java
new file mode 100644
index 0000000..7880f67
--- /dev/null
+++ b/tests/WallpaperTest/src/com/example/wallpapertest/MainActivity.java
@@ -0,0 +1,176 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.wallpapertest;
+
+import android.app.Activity;
+import android.app.WallpaperManager;
+import android.content.Context;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.text.Editable;
+import android.text.TextUtils;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.WindowManager;
+import android.widget.TextView;
+
+public class MainActivity extends Activity {
+    private static final String TAG = "MainActivity";
+
+    WallpaperManager mWallpaperManager;
+    WindowManager mWindowManager;
+
+    TextView mDimenWidthView;
+    TextView mDimenHeightView;
+
+    TextView mWallOffXView;
+    TextView mWallOffYView;
+
+    TextView mPaddingLeftView;
+    TextView mPaddingRightView;
+    TextView mPaddingTopView;
+    TextView mPaddingBottomView;
+
+    TextView mDispOffXView;
+    TextView mDispOffYView;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        mWallpaperManager = (WallpaperManager)getSystemService(Context.WALLPAPER_SERVICE);
+        mWindowManager = (WindowManager)getSystemService(Context.WINDOW_SERVICE);
+
+        mDimenWidthView = (TextView) findViewById(R.id.dimen_width);
+        mDimenWidthView.addTextChangedListener(mTextWatcher);
+        mDimenHeightView = (TextView) findViewById(R.id.dimen_height);
+        mDimenHeightView.addTextChangedListener(mTextWatcher);
+
+        mWallOffXView = (TextView) findViewById(R.id.walloff_x);
+        mWallOffXView.addTextChangedListener(mTextWatcher);
+        mWallOffYView = (TextView) findViewById(R.id.walloff_y);
+        mWallOffYView.addTextChangedListener(mTextWatcher);
+
+        mPaddingLeftView = (TextView) findViewById(R.id.padding_left);
+        mPaddingLeftView.addTextChangedListener(mTextWatcher);
+        mPaddingRightView = (TextView) findViewById(R.id.padding_right);
+        mPaddingRightView.addTextChangedListener(mTextWatcher);
+        mPaddingTopView = (TextView) findViewById(R.id.padding_top);
+        mPaddingTopView.addTextChangedListener(mTextWatcher);
+        mPaddingBottomView = (TextView) findViewById(R.id.padding_bottom);
+        mPaddingBottomView.addTextChangedListener(mTextWatcher);
+
+        mDispOffXView = (TextView) findViewById(R.id.dispoff_x);
+        mDispOffXView.addTextChangedListener(mTextWatcher);
+        mDispOffYView = (TextView) findViewById(R.id.dispoff_y);
+        mDispOffYView.addTextChangedListener(mTextWatcher);
+
+        updateDimens();
+        updateWallOff();
+        updatePadding();
+        updateDispOff();
+    }
+
+    private int loadPropIntText(TextView view, int baseVal) {
+        String str = view.getText().toString();
+        if (str != null && !TextUtils.isEmpty(str)) {
+            try {
+                float fval = Float.parseFloat(str);
+                return (int)(fval*baseVal);
+            } catch (NumberFormatException e) {
+                Log.i(TAG, "Bad number: " + str, e);
+            }
+        }
+        return baseVal;
+    }
+
+    private float loadFloatText(TextView view) {
+        String str = view.getText().toString();
+        if (str != null && !TextUtils.isEmpty(str)) {
+            try {
+                return Float.parseFloat(str);
+            } catch (NumberFormatException e) {
+                Log.i(TAG, "Bad number: " + str, e);
+            }
+        }
+        return 0;
+    }
+
+    private int loadIntText(TextView view) {
+        String str = view.getText().toString();
+        if (str != null && !TextUtils.isEmpty(str)) {
+            try {
+                return Integer.parseInt(str);
+            } catch (NumberFormatException e) {
+                Log.i(TAG, "Bad number: " + str, e);
+            }
+        }
+        return 0;
+    }
+
+    public void updateDimens() {
+        Point minDims = new Point();
+        Point maxDims = new Point();
+        mWindowManager.getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
+        mWallpaperManager.suggestDesiredDimensions(
+                loadPropIntText(mDimenWidthView, maxDims.x),
+                loadPropIntText(mDimenHeightView, maxDims.y));
+    }
+
+    public void updateWallOff() {
+        IBinder token = getWindow().getDecorView().getWindowToken();
+        if (token != null) {
+            mWallpaperManager.setWallpaperOffsets(token, loadFloatText(mWallOffXView),
+                    loadFloatText(mWallOffYView));
+        }
+    }
+
+    public void updatePadding() {
+        Rect padding = new Rect();
+        padding.left = loadIntText(mPaddingLeftView);
+        padding.top = loadIntText(mPaddingTopView);
+        padding.right = loadIntText(mPaddingRightView);
+        padding.bottom = loadIntText(mPaddingBottomView);
+        mWallpaperManager.setDisplayPadding(padding);
+    }
+
+    public void updateDispOff() {
+        IBinder token = getWindow().getDecorView().getWindowToken();
+        if (token != null) {
+            mWallpaperManager.setDisplayOffset(token, loadIntText(mDispOffXView),
+                    loadIntText(mDispOffYView));
+        }
+    }
+
+    final TextWatcher mTextWatcher = new TextWatcher() {
+        @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+        }
+
+        @Override public void onTextChanged(CharSequence s, int start, int before, int count) {
+            updateDimens();
+            updateWallOff();
+            updatePadding();
+            updateDispOff();
+        }
+
+        @Override public void afterTextChanged(Editable s) {
+        }
+    };
+}
diff --git a/tests/WallpaperTest/src/com/example/wallpapertest/TestWallpaper.java b/tests/WallpaperTest/src/com/example/wallpapertest/TestWallpaper.java
new file mode 100644
index 0000000..95db6d1
--- /dev/null
+++ b/tests/WallpaperTest/src/com/example/wallpapertest/TestWallpaper.java
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.wallpapertest;
+
+import android.service.wallpaper.WallpaperService;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.Paint;
+import android.graphics.Color;
+import android.graphics.RectF;
+import android.text.TextPaint;
+import android.view.SurfaceHolder;
+import android.content.res.XmlResourceParser;
+
+import android.os.Handler;
+import android.util.Log;
+
+import android.view.WindowInsets;
+
+public class TestWallpaper extends WallpaperService {
+    private static final String LOG_TAG = "PolarClock";
+    
+    private final Handler mHandler = new Handler();
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+    }
+
+    public Engine onCreateEngine() {
+        return new ClockEngine();
+    }
+
+    class ClockEngine extends Engine {
+        private static final int OUTER_COLOR = 0xffff0000;
+        private static final int INNER_COLOR = 0xff000080;
+        private static final int STABLE_COLOR = 0xa000ff00;
+        private static final int TEXT_COLOR = 0xa0ffffff;
+
+        private final Paint.FontMetrics mTextMetrics = new Paint.FontMetrics();
+
+        private int mPadding;
+
+        private final Rect mMainInsets = new Rect();
+        private final Rect mStableInsets = new Rect();
+        private boolean mRound = false;
+
+        private int mDesiredWidth;
+        private int mDesiredHeight;
+
+        private float mOffsetX;
+        private float mOffsetY;
+        private float mOffsetXStep;
+        private float mOffsetYStep;
+        private int mOffsetXPixels;
+        private int mOffsetYPixels;
+
+        private final Paint mFillPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        private final Paint mStrokePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        private final TextPaint mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
+
+        private final Runnable mDrawClock = new Runnable() {
+            public void run() {
+                drawFrame();
+            }
+        };
+        private boolean mVisible;
+
+        ClockEngine() {
+        }
+
+        @Override
+        public void onCreate(SurfaceHolder surfaceHolder) {
+            super.onCreate(surfaceHolder);
+
+            mDesiredWidth = getDesiredMinimumWidth();
+            mDesiredHeight = getDesiredMinimumHeight();
+
+            Paint paint = mFillPaint;
+            paint.setStyle(Paint.Style.FILL);
+
+            paint = mStrokePaint;
+            paint.setStrokeWidth(3);
+            paint.setStrokeCap(Paint.Cap.ROUND);
+            paint.setStyle(Paint.Style.STROKE);
+
+            TextPaint tpaint = mTextPaint;
+            tpaint.density = getResources().getDisplayMetrics().density;
+            tpaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale);
+            tpaint.setColor(TEXT_COLOR);
+            tpaint.setTextSize(18 * getResources().getDisplayMetrics().scaledDensity);
+            tpaint.setShadowLayer(4 * getResources().getDisplayMetrics().density, 0, 0, 0xff000000);
+
+            mTextPaint.getFontMetrics(mTextMetrics);
+
+            mPadding = (int)(16 * getResources().getDisplayMetrics().density);
+
+            if (isPreview()) {
+                mOffsetX = 0.5f;
+                mOffsetY = 0.5f;
+            }
+        }
+
+        @Override
+        public void onDestroy() {
+            super.onDestroy();
+            mHandler.removeCallbacks(mDrawClock);
+        }
+
+        @Override
+        public void onVisibilityChanged(boolean visible) {
+            mVisible = visible;
+            if (!visible) {
+                mHandler.removeCallbacks(mDrawClock);
+            }
+            drawFrame();
+        }
+
+        @Override
+        public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+            super.onSurfaceChanged(holder, format, width, height);
+            drawFrame();
+        }
+
+        @Override
+        public void onSurfaceCreated(SurfaceHolder holder) {
+            super.onSurfaceCreated(holder);
+        }
+
+        @Override
+        public void onSurfaceDestroyed(SurfaceHolder holder) {
+            super.onSurfaceDestroyed(holder);
+            mVisible = false;
+            mHandler.removeCallbacks(mDrawClock);
+        }
+
+        @Override
+        public void onApplyWindowInsets(WindowInsets insets) {
+            super.onApplyWindowInsets(insets);
+            mMainInsets.set(insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(),
+                    insets.getSystemWindowInsetRight(), insets.getSystemWindowInsetBottom());
+            mStableInsets.set(insets.getStableInsetLeft(), insets.getStableInsetTop(),
+                    insets.getStableInsetRight(), insets.getStableInsetBottom());
+            mRound = insets.isRound();
+            drawFrame();
+        }
+
+        @Override
+        public void onDesiredSizeChanged(int desiredWidth, int desiredHeight) {
+            super.onDesiredSizeChanged(desiredWidth, desiredHeight);
+            mDesiredWidth = desiredWidth;
+            mDesiredHeight = desiredHeight;
+            drawFrame();
+        }
+
+        @Override
+        public void onOffsetsChanged(float xOffset, float yOffset,
+                float xStep, float yStep, int xPixels, int yPixels) {
+            super.onOffsetsChanged(xOffset, yOffset, xStep, yStep, xPixels, yPixels);
+
+            if (isPreview()) return;
+
+            mOffsetX = xOffset;
+            mOffsetY = yOffset;
+            mOffsetXStep = xStep;
+            mOffsetYStep = yStep;
+            mOffsetXPixels = xPixels;
+            mOffsetYPixels = yPixels;
+
+            drawFrame();
+        }
+
+        void drawFrame() {
+            final SurfaceHolder holder = getSurfaceHolder();
+            final Rect frame = holder.getSurfaceFrame();
+            final int width = frame.width();
+            final int height = frame.height();
+
+            Canvas c = null;
+            try {
+                c = holder.lockCanvas();
+                if (c != null) {
+                    final Paint paint = mFillPaint;
+
+                    paint.setColor(OUTER_COLOR);
+                    c.drawRect(0, 0, width, height, paint);
+
+                    paint.setColor(INNER_COLOR);
+                    c.drawRect(0+mMainInsets.left, 0+mMainInsets.top,
+                            width-mMainInsets.right, height-mMainInsets.bottom, paint);
+
+                    mStrokePaint.setColor(STABLE_COLOR);
+                    c.drawRect(0 + mStableInsets.left, 0 + mStableInsets.top,
+                            width - mStableInsets.right, height - mStableInsets.bottom,
+                            mStrokePaint);
+
+                    final int ascdesc = (int)(-mTextMetrics.ascent + mTextMetrics.descent);
+                    final int linegap = (int)(-mTextMetrics.ascent + mTextMetrics.descent
+                            + mTextMetrics.leading);
+
+                    int x = mStableInsets.left + mPadding;
+                    int y = height - mStableInsets.bottom - mPadding - ascdesc;
+                    c.drawText("Surface Size: " + width + " x " + height,
+                            x, y, mTextPaint);
+                    y -= linegap;
+                    c.drawText("Desired Size: " + mDesiredWidth + " x " + mDesiredHeight,
+                            x, y, mTextPaint);
+                    y -= linegap;
+                    c.drawText("Cur Offset Raw: " + mOffsetX + ", " + mOffsetY,
+                            x, y, mTextPaint);
+                    y -= linegap;
+                    c.drawText("Cur Offset Step: " + mOffsetXStep + ", " + mOffsetYStep,
+                            x, y, mTextPaint);
+                    y -= linegap;
+                    c.drawText("Cur Offset Pixels: " + mOffsetXPixels + ", " + mOffsetYPixels,
+                            x, y, mTextPaint);
+                    y -= linegap;
+                    c.drawText("Stable Insets: (" + mStableInsets.left + ", " + mStableInsets.top
+                            + ") - (" + mStableInsets.right + ", " + mStableInsets.bottom + ")",
+                            x, y, mTextPaint);
+                    y -= linegap;
+                    c.drawText("System Insets: (" + mMainInsets.left + ", " + mMainInsets.top
+                            + ") - (" + mMainInsets.right + ", " + mMainInsets.bottom + ")",
+                            x, y, mTextPaint);
+
+                }
+            } finally {
+                if (c != null) holder.unlockCanvasAndPost(c);
+            }
+        }
+    }
+}