From cecf2faac86e300d5763c35183bb7a5181e31bad Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Tue, 30 Aug 2016 19:54:07 +0200
Subject: [PATCH] add a widget config activity for changing widget alpha

---
 app/src/main/AndroidManifest.xml              |   9 ++
 .../flashlight/Constants.java                 |   1 +
 .../activities/WidgetConfigureActivity.java   | 129 ++++++++++++++++++
 app/src/main/res/layout/widget_config.xml     |  56 ++++++++
 app/src/main/res/values-it/strings.xml        |   1 +
 app/src/main/res/values-ja/strings.xml        |   1 +
 app/src/main/res/values-sv/strings.xml        |   1 +
 app/src/main/res/values/colors.xml            |   1 +
 app/src/main/res/values/dimens.xml            |   1 +
 app/src/main/res/values/strings.xml           |   1 +
 app/src/main/res/values/styles.xml            |   5 +
 app/src/main/res/xml/widget_info.xml          |   1 +
 12 files changed, 207 insertions(+)
 create mode 100644 app/src/main/java/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.java
 create mode 100644 app/src/main/res/layout/widget_config.xml

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 306a827..f95fe66 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -27,6 +27,15 @@
             </intent-filter>
         </activity>
 
+        <activity
+            android:name=".activities.WidgetConfigureActivity"
+            android:screenOrientation="portrait"
+            android:theme="@style/MyWidgetConfigTheme">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE"/>
+            </intent-filter>
+        </activity>
+
         <activity
             android:name=".activities.AboutActivity"
             android:label="@string/about"
diff --git a/app/src/main/java/com/simplemobiletools/flashlight/Constants.java b/app/src/main/java/com/simplemobiletools/flashlight/Constants.java
index 7447283..e9d6c49 100644
--- a/app/src/main/java/com/simplemobiletools/flashlight/Constants.java
+++ b/app/src/main/java/com/simplemobiletools/flashlight/Constants.java
@@ -6,4 +6,5 @@ public class Constants {
     public static final String IS_FIRST_RUN = "is_first_run";
     public static final String IS_DARK_THEME = "is_dark_theme";
     public static final String BRIGHT_DISPLAY = "bright_display";
+    public static final String WIDGET_COLOR = "widget_color";
 }
diff --git a/app/src/main/java/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.java b/app/src/main/java/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.java
new file mode 100644
index 0000000..c9f37c7
--- /dev/null
+++ b/app/src/main/java/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.java
@@ -0,0 +1,129 @@
+package com.simplemobiletools.flashlight.activities;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.graphics.Color;
+import android.graphics.PorterDuff;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.RemoteViews;
+import android.widget.SeekBar;
+
+import com.simplemobiletools.flashlight.Constants;
+import com.simplemobiletools.flashlight.MyWidgetProvider;
+import com.simplemobiletools.flashlight.R;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+
+public class WidgetConfigureActivity extends AppCompatActivity {
+    @BindView(R.id.config_widget_seekbar) SeekBar mWidgetSeekBar;
+    @BindView(R.id.config_widget_color) View mWidgetColorPicker;
+    @BindView(R.id.config_image) ImageView mImage;
+
+    private static float mWidgetAlpha;
+    private static int mWidgetId;
+    private static int mWidgetColor;
+    private static int mWidgetColorWithoutTransparency;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setResult(RESULT_CANCELED);
+        setContentView(R.layout.widget_config);
+        ButterKnife.bind(this);
+        initVariables();
+
+        final Intent intent = getIntent();
+        final Bundle extras = intent.getExtras();
+        if (extras != null)
+            mWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+
+        if (mWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID)
+            finish();
+    }
+
+    private void initVariables() {
+        final SharedPreferences prefs = getSharedPreferences(Constants.PREFS_KEY, Context.MODE_PRIVATE);
+        mWidgetColor = prefs.getInt(Constants.WIDGET_COLOR, 1);
+        if (mWidgetColor == 1) {
+            mWidgetColor = getResources().getColor(R.color.colorPrimary);
+            mWidgetAlpha = 1.f;
+        } else {
+            mWidgetAlpha = Color.alpha(mWidgetColor) / (float) 255;
+        }
+
+        mWidgetColorWithoutTransparency = Color.rgb(Color.red(mWidgetColor), Color.green(mWidgetColor), Color.blue(mWidgetColor));
+        mWidgetSeekBar.setOnSeekBarChangeListener(seekbarChangeListener);
+        mWidgetSeekBar.setProgress((int) (mWidgetAlpha * 100));
+        updateBackgroundColor();
+    }
+
+    @OnClick(R.id.config_save)
+    public void saveConfig() {
+        final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
+        final RemoteViews views = new RemoteViews(getPackageName(), R.layout.widget);
+        appWidgetManager.updateAppWidget(mWidgetId, views);
+
+        storeWidgetColors();
+        requestWidgetUpdate();
+
+        final Intent resultValue = new Intent();
+        resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mWidgetId);
+        setResult(RESULT_OK, resultValue);
+        finish();
+    }
+
+    @OnClick(R.id.config_widget_color)
+    public void pickBackgroundColor() {
+
+    }
+
+    private void storeWidgetColors() {
+        final SharedPreferences prefs = getSharedPreferences(Constants.PREFS_KEY, Context.MODE_PRIVATE);
+        prefs.edit().putInt(Constants.WIDGET_COLOR, mWidgetColor).apply();
+    }
+
+    private void requestWidgetUpdate() {
+        final Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE, null, this, MyWidgetProvider.class);
+        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[]{mWidgetId});
+        sendBroadcast(intent);
+    }
+
+    private void updateBackgroundColor() {
+        mWidgetColor = adjustAlpha(mWidgetColorWithoutTransparency, mWidgetAlpha);
+        mWidgetColorPicker.setBackgroundColor(mWidgetColor);
+        mImage.getDrawable().mutate().setColorFilter(mWidgetColor, PorterDuff.Mode.SRC_IN);
+    }
+
+    private SeekBar.OnSeekBarChangeListener seekbarChangeListener = new SeekBar.OnSeekBarChangeListener() {
+        @Override
+        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+            mWidgetAlpha = (float) progress / (float) 100;
+            updateBackgroundColor();
+        }
+
+        @Override
+        public void onStartTrackingTouch(SeekBar seekBar) {
+
+        }
+
+        @Override
+        public void onStopTrackingTouch(SeekBar seekBar) {
+
+        }
+    };
+
+    private int adjustAlpha(int color, float factor) {
+        final int alpha = Math.round(Color.alpha(color) * factor);
+        final int red = Color.red(color);
+        final int green = Color.green(color);
+        final int blue = Color.blue(color);
+        return Color.argb(alpha, red, green, blue);
+    }
+}
diff --git a/app/src/main/res/layout/widget_config.xml b/app/src/main/res/layout/widget_config.xml
new file mode 100644
index 0000000..d77c0d9
--- /dev/null
+++ b/app/src/main/res/layout/widget_config.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_centerHorizontal="true"
+    android:layout_margin="@dimen/activity_margin"
+    android:paddingBottom="@dimen/activity_margin">
+
+    <ImageView
+        android:id="@+id/config_image"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_above="@+id/config_widget_color"
+        android:scaleType="centerInside"
+        android:src="@mipmap/flashlight_small"/>
+
+    <Button
+        android:id="@+id/config_widget_color"
+        android:layout_width="50dp"
+        android:layout_height="50dp"
+        android:layout_above="@+id/config_save"/>
+
+    <RelativeLayout
+        android:id="@+id/config_widget_seekbar_holder"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_alignBottom="@+id/config_widget_color"
+        android:layout_alignTop="@+id/config_widget_color"
+        android:layout_toRightOf="@+id/config_widget_color"
+        android:background="@android:color/white">
+
+        <SeekBar
+            android:id="@+id/config_widget_seekbar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:paddingLeft="@dimen/activity_margin"
+            android:paddingRight="@dimen/activity_margin"/>
+    </RelativeLayout>
+
+    <Button
+        android:id="@+id/config_save"
+        android:layout_width="wrap_content"
+        android:layout_height="50dp"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentRight="true"
+        android:background="@color/translucent_black"
+        android:fontFamily="sans-serif-light"
+        android:paddingLeft="@dimen/activity_margin"
+        android:paddingRight="@dimen/activity_margin"
+        android:text="@string/ok"
+        android:textColor="@color/colorPrimary"
+        android:textSize="@dimen/config_text_size"/>
+
+</RelativeLayout>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index b8df9ae..f82e166 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -2,6 +2,7 @@
     <string name="app_name">Simple Flashlight</string>
     <string name="app_launcher_name">Flashlight</string>
     <string name="camera_error">Rilevamento fotocamera fallito</string>
+    <string name="ok">OK</string>
 
     <!-- Settings -->
     <string name="settings">Impostazioni</string>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index ec70762..7866019 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -2,6 +2,7 @@
     <string name="app_name">シンプル フラッシュライト</string>
     <string name="app_launcher_name">Flashlight</string>
     <string name="camera_error">カメラの取得に失敗しました</string>
+    <string name="ok">OK</string>
 
     <!-- Settings -->
     <string name="settings">設定</string>
diff --git a/app/src/main/res/values-sv/strings.xml b/app/src/main/res/values-sv/strings.xml
index 540aec8..2e9499a 100644
--- a/app/src/main/res/values-sv/strings.xml
+++ b/app/src/main/res/values-sv/strings.xml
@@ -2,6 +2,7 @@
     <string name="app_name">Simple Flashlight</string>
     <string name="app_launcher_name">Flashlight</string>
     <string name="camera_error">Det gick inte att komma åt kameran</string>
+    <string name="ok">OK</string>
 
     <!-- Settings -->
     <string name="settings">Inställningar</string>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 30da1d0..cc62b7d 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -4,4 +4,5 @@
     <color name="colorPrimaryDark">#ffe27725</color>
     <color name="colorAccent">@color/colorPrimary</color>
     <color name="translucent_white">#aaffffff</color>
+    <color name="translucent_black">#88000000</color>
 </resources>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index 680fc84..ab60650 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -6,4 +6,5 @@
     <dimen name="settings_padding">8dp</dimen>
 
     <dimen name="normal_text_size">14sp</dimen>
+    <dimen name="config_text_size">18sp</dimen>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7d9b02d..e8b8ab4 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -2,6 +2,7 @@
     <string name="app_name">Simple Flashlight</string>
     <string name="app_launcher_name">Flashlight</string>
     <string name="camera_error">Obtaining the camera failed</string>
+    <string name="ok">OK</string>
 
     <!-- Settings -->
     <string name="settings">Settings</string>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 9f3923e..7cad609 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -25,6 +25,11 @@
         <item name="android:windowBackground">@null</item>
     </style>
 
+    <style name="MyWidgetConfigTheme" parent="@style/AppTheme">
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowShowWallpaper">true</item>
+    </style>
+
     <style name="AppTheme.ActionBarStyle" parent="@style/Base.Widget.AppCompat.ActionBar">
         <item name="background">@color/colorPrimary</item>
         <item name="titleTextStyle">@style/AppTheme.ActionBar.TitleTextStyle</item>
diff --git a/app/src/main/res/xml/widget_info.xml b/app/src/main/res/xml/widget_info.xml
index cb4e179..acd05ed 100644
--- a/app/src/main/res/xml/widget_info.xml
+++ b/app/src/main/res/xml/widget_info.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+                    android:configure="com.simplemobiletools.flashlight.activities.WidgetConfigureActivity"
                     android:initialLayout="@layout/widget"
                     android:minHeight="40dp"
                     android:minWidth="40dp"/>