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Add ColorPicker Preference Dialog
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‎res/layout/view_dialog_colorpicker.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<!--
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Copyright (C) 2010 Daniel Nilsson
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Copyright (C) 2012 The CyanogenMod Project
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Copyright (C) 2013 XuiMod
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:id="@+id/LinearLayout1"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical" >
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<com.zst.app.multiwindowsidebar.preference.colorpicker.ColorPickerView
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android:id="@+id/color_picker_view"
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android:layout_width="match_parent"
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android:layout_height="wrap_content" />
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<LinearLayout
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android:id="@+id/color_text_box"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_margin="5dp"
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android:orientation="horizontal" >
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<TextView
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android:id="@+id/color_hex_label"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_weight="0"
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android:gravity="right"
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android:text="@string/color_hex"
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android:textAppearance="?android:attr/textAppearanceMedium" />
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<EditText
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android:id="@+id/current_hex_text"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_weight="1"
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android:digits="0123456789ABCDEF"
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android:ems="10"
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android:inputType="textCapCharacters"
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android:maxLength="8" />
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<Button
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android:id="@+id/color_apply"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_weight="0"
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android:text="@string/apply" />
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</LinearLayout>
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<LinearLayout
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android:id="@+id/color_panel_view"
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android:layout_width="match_parent"
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android:layout_height="36dp"
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android:layout_margin="5dp"
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android:orientation="horizontal" >
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<com.zst.app.multiwindowsidebar.preference.colorpicker.ColorPanelView
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android:id="@+id/old_color_panel"
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android:layout_width="0px"
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android:layout_height="match_parent"
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android:layout_weight="0.5" />
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="match_parent"
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android:layout_marginLeft="5dp"
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android:layout_marginRight="5dp"
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android:gravity="center"
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android:text="@string/arrow_symbol"
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android:textColor="#ffffff"
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android:textSize="30sp" />
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<com.zst.app.multiwindowsidebar.preference.colorpicker.ColorPanelView
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android:id="@+id/new_color_panel"
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android:layout_width="0px"
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android:layout_height="match_parent"
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android:layout_weight="0.5" />
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</LinearLayout>
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</LinearLayout>

‎res/values/strings.xml‎

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<string name="add_app">Add App</string>
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<string name="group">Group</string>
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<string name="settings_default">Default Value</string>
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<string name="apply">Apply</string>
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<string name="color_hex">Color Hex</string>
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<!-- Creating Group -->
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<string name="create_group">Create Group</string>
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<!-- Themes -->
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<string name="theme_default">Default (Original Note 3)\nby Samsung</string>
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<string name="theme_inverted">Inverted Note 3\nby foreverloco@XDA</string>
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<!-- Do not translate -->
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<string name="arrow_symbol">➙</string>
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</resources>

‎src/com/zst/app/multiwindowsidebar/Util.java‎

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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.drawable.Drawable;
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import android.graphics.drawable.LayerDrawable;
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layer.setLayerInset(0x1, size, size, 0, 0);
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return layer;
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}
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public static int parseColorFromString(String str, String defColorWithoutSymbols) {
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str.replaceAll("\\s+", "");
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// Remove all spaces
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if (str.equals("")) {
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str = defColorWithoutSymbols;
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}
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if (!str.startsWith("#")) {
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str = "#" + str;
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}
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try {
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return Color.parseColor(str);
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} catch (Exception e) {
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return Color.parseColor("#" + defColorWithoutSymbols);
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}
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}
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}

‎src/com/zst/app/multiwindowsidebar/preference/ColorPickerDialog.java‎

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/*
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* Copyright (C) 2013 XuiMod
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* Copyright (C) 2012 The CyanogenMod Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.zst.app.multiwindowsidebar.preference;
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import com.zst.app.multiwindowsidebar.R;
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import com.zst.app.multiwindowsidebar.Util;
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import com.zst.app.multiwindowsidebar.preference.colorpicker.ColorSettingsDialog;
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import android.app.AlertDialog;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.SharedPreferences;
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import android.content.res.Resources;
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import android.preference.Preference;
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import android.preference.Preference.OnPreferenceClickListener;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.ImageView;
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public abstract class ColorPickerDialog extends Preference implements OnPreferenceClickListener {
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SharedPreferences mPref;
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ImageView mColorBox;
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Resources mRes;
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String mDefaultColor;
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boolean mHideAlpha;
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public ColorPickerDialog(Context context, AttributeSet attrs) {
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super(context, attrs);
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mDefaultColor = attrs.getAttributeValue(null, "defaultValue");
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if (attrs.getAttributeValue(null, "hideAlpha") != null) {
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mHideAlpha = true;
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}
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}
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@Override
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protected void onBindView(View view) {
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super.onBindView(view);
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mColorBox = (ImageView) view.findViewById(android.R.id.icon);
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mPref = getPreferenceManager().getSharedPreferences();
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mRes = getContext().getResources();
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setOnPreferenceClickListener(this);
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refreshColorBox();
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}
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@Override
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public boolean onPreferenceClick(Preference arg0) {
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final ColorSettingsDialog d = new ColorSettingsDialog(getContext(), getColor(), mDefaultColor);
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d.setAlphaSliderVisible(!mHideAlpha);
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final DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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switch (which){
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case AlertDialog.BUTTON_POSITIVE:
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setColor(d.getColorString());
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break;
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case AlertDialog.BUTTON_NEUTRAL:
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setColor(mDefaultColor);
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break;
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}
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onSettingsChanged();
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}
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};
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d.setButton(AlertDialog.BUTTON_POSITIVE, mRes.getString(android.R.string.ok), listener);
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d.setButton(AlertDialog.BUTTON_NEUTRAL, mRes.getString(R.string.settings_default), listener);
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d.setButton(AlertDialog.BUTTON_NEGATIVE, mRes.getString(android.R.string.cancel), listener);
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d.show();
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return true;
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}
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public abstract void onSettingsChanged();
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public String getColorString() {
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return Integer.toHexString(getColor());
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}
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public int getColor() {
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String str = mPref.getString(getKey(), mDefaultColor);
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return Util.parseColorFromString(str, mDefaultColor);
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}
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private void refreshColorBox(){
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if (mColorBox != null) {
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mColorBox.setBackgroundColor(getColor());
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mColorBox.setVisibility(View.VISIBLE);
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}
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}
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public void setColor(String clr) {
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mPref.edit().putString(getKey(), clr).commit();
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refreshColorBox();
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}
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}

‎src/com/zst/app/multiwindowsidebar/preference/colorpicker/AlphaPatternDrawable.java‎

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/*
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* Copyright (C) 2010 Daniel Nilsson
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.zst.app.multiwindowsidebar.preference.colorpicker;
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import android.graphics.*;
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import android.graphics.Bitmap.Config;
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import android.graphics.drawable.Drawable;
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/**
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* This drawable that draws a simple white and gray chessboard pattern.
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* It's pattern you will often see as a background behind a
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* partly transparent image in many applications.
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* @author Daniel Nilsson
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*/
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public class AlphaPatternDrawable extends Drawable {
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private int mRectangleSize = 10;
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private Paint mPaint = new Paint();
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private Paint mPaintWhite = new Paint();
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private Paint mPaintGray = new Paint();
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private int numRectanglesHorizontal;
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private int numRectanglesVertical;
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/**
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* Bitmap in which the pattern will be cahched.
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*/
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private Bitmap mBitmap;
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public AlphaPatternDrawable(int rectangleSize) {
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mRectangleSize = rectangleSize;
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mPaintWhite.setColor(0xffffffff);
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mPaintGray.setColor(0xffcbcbcb);
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}
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@Override
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public void draw(Canvas canvas) {
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canvas.drawBitmap(mBitmap, null, getBounds(), mPaint);
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}
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@Override
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public int getOpacity() {
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return 0;
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}
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@Override
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public void setAlpha(int alpha) {
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throw new UnsupportedOperationException("Alpha is not supported by this drawwable.");
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}
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@Override
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public void setColorFilter(ColorFilter cf) {
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throw new UnsupportedOperationException("ColorFilter is not supported by this drawwable.");
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}
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@Override
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protected void onBoundsChange(Rect bounds) {
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super.onBoundsChange(bounds);
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int height = bounds.height();
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int width = bounds.width();
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numRectanglesHorizontal = (int) Math.ceil((width / mRectangleSize));
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numRectanglesVertical = (int) Math.ceil(height / mRectangleSize);
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generatePatternBitmap();
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}
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/**
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* This will generate a bitmap with the pattern
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* as big as the rectangle we were allow to draw on.
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* We do this to chache the bitmap so we don't need to
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* recreate it each time draw() is called since it
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* takes a few milliseconds.
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*/
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private void generatePatternBitmap(){
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if(getBounds().width() <= 0 || getBounds().height() <= 0){
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return;
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}
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mBitmap = Bitmap.createBitmap(getBounds().width(), getBounds().height(), Config.ARGB_8888);
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Canvas canvas = new Canvas(mBitmap);
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Rect r = new Rect();
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boolean verticalStartWhite = true;
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for (int i = 0; i <= numRectanglesVertical; i++) {
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boolean isWhite = verticalStartWhite;
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for (int j = 0; j <= numRectanglesHorizontal; j++) {
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r.top = i * mRectangleSize;
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r.left = j * mRectangleSize;
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r.bottom = r.top + mRectangleSize;
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r.right = r.left + mRectangleSize;
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canvas.drawRect(r, isWhite ? mPaintWhite : mPaintGray);
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isWhite = !isWhite;
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}
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verticalStartWhite = !verticalStartWhite;
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}
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}
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}

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