Android记录4--自定义ToggleButton+用SharedPreferences保存用户配置
2013年8月14日Android记录
很多应用都会有用户设置，用户的一些偏好可以由用户来决定那是应用人性化的体现，在实际开发中很多情况都作成可配置的了，本篇博客要介绍的是一个比较炫的状态按钮切换，我想很多开发者都想做出这样的效果，在这里我也就把自己参与的项目当中的这部分实现，做出Demo来于朋友们分享。
没有图，我感觉就特别不舒服：
这样看没办法看出效果，如果能做出动态图就好了，下次吧。
除了ToggleButton的自定义之外，用户配置的信息也是要保存起来的，每一次启动程序的时候要能保证使用的是之前的配置，而不是默认配置，在这里使用SharedPreferences是最好的选择了。
布局文件：
/2013.08.14_ToggleButton_demo/res/layout/settings.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/LinearLayout1" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/bg" android:orientation="vertical" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable/banner_bg" > <TextView android:id="@+id/tv_Title" android:layout_width="wrap_content" android:layout_height="42dp" android:layout_centerHorizontal="true" android:gravity="center" android:text="设置" android:textColor="#ffffff" android:textSize="22sp" /> </RelativeLayout> <ScrollView android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:id="@+id/layout_AutoPlay" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable/item_short_bg_selector" android:gravity="center_vertical" > <TextView android:id="@+id/tv_AutoPlay" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:focusable="false" android:singleLine="true" android:text="自动播放" android:textColor="#7a6f66" android:textSize="18sp" /> <RelativeLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dp" > <ToggleButton android:id="@+id/toggle_AutoPlay" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/toggle_selector" android:gravity="left|center_vertical" android:paddingLeft="14dp" android:paddingRight="14dp" android:textColor="#ffffff" android:textOff="OFF" android:textOn="ON" /> <ImageButton android:id="@+id/toggleButton_AutoPlay" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignRight="@+id/toggle_AutoPlay" android:background="#00000000" android:src="@drawable/progress_thumb_selector" /> </RelativeLayout> </LinearLayout> <ImageView android:layout_width="match_parent" android:layout_height="wrap_content" android:scaleType="fitXY" android:src="@drawable/list_divider" /> <LinearLayout android:id="@+id/layout_StartOnBoot" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable/item_short_bg_selector" android:gravity="center_vertical" > <TextView android:id="@+id/tv_StartOnBoot" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:focusable="false" android:singleLine="true" android:text="开机自启动" android:textColor="#7a6f66" android:textSize="18sp" /> <RelativeLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dp" > <ToggleButton android:id="@+id/toggle_StartOnBoot" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/toggle_selector" android:gravity="left|center_vertical" android:paddingLeft="14dp" android:paddingRight="14dp" android:textColor="#ffffff" android:textOff="OFF" android:textOn="ON" /> <ImageButton android:id="@+id/toggleButton_StartOnBoot" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignRight="@+id/toggle_StartOnBoot" android:background="#00000000" android:src="@drawable/progress_thumb_selector" /> </RelativeLayout> </LinearLayout> </LinearLayout> </ScrollView></LinearLayout>
哪些selector文件的代码就不贴了，自己看源码吧
Activity文件
/2013.08.14_ToggleButton_demo/src/com/wwj/toggle/Setting.java
package com.wwj.toggle;import android.app.Activity;import android.os.Bundle;import android.view.Gravity;import android.view.View;import android.view.View.OnClickListener;import android.widget.ImageButton;import android.widget.LinearLayout;import android.widget.RelativeLayout;import android.widget.ToggleButton;/** * 自定义ToggleButton的例子 * * @author wwj 2013年8月14 */public class Setting extends Activity { private LinearLayout layout_AutoPlay; private LinearLayout layout_StartOnBoot; private ToggleButton toggle_AutoPlay; private ToggleButton toggle_StartOnBoot; private ImageButton toggleButton_AutoPlay; private ImageButton toggleButton_StartOnBoot; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.settings); // 找到控件 layout_AutoPlay = (LinearLayout) findViewById(R.id.layout_AutoPlay); layout_StartOnBoot = (LinearLayout) findViewById(R.id.layout_StartOnBoot); toggle_AutoPlay = (ToggleButton) findViewById(R.id.toggle_AutoPlay); toggle_StartOnBoot = (ToggleButton) findViewById(R.id.toggle_StartOnBoot); toggleButton_AutoPlay = (ImageButton) findViewById(R.id.toggleButton_AutoPlay); toggleButton_StartOnBoot = (ImageButton) findViewById(R.id.toggleButton_StartOnBoot); initViews(); setListeners(); } private void initViews() { // 是否自动播放，获取SharePerference保存的用户配置 boolean isAutoPlay = SettingUtils.get(this, SettingUtils.AUTO_PLAY, false); toggle_AutoPlay.setChecked(isAutoPlay); RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) toggleButton_AutoPlay .getLayoutParams(); if (isAutoPlay) { // 如果是自动播放 // 调整位置 params.addRule(RelativeLayout.ALIGN_RIGHT, -1); params.addRule(RelativeLayout.ALIGN_LEFT, R.id.toggleButton_AutoPlay); toggleButton_AutoPlay.setLayoutParams(params); toggleButton_AutoPlay .setImageResource(R.drawable.progress_thumb_selector); toggle_AutoPlay.setGravity(Gravity.RIGHT | Gravity.CENTER_VERTICAL); } else { // 调整位置 params.addRule(RelativeLayout.ALIGN_RIGHT, R.id.toggle_AutoPlay); params.addRule(RelativeLayout.ALIGN_LEFT, -1); toggleButton_AutoPlay.setLayoutParams(params); toggleButton_AutoPlay .setImageResource(R.drawable.progress_thumb_off_selector); toggle_AutoPlay.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL); } boolean isAutostart = SettingUtils.get(this, SettingUtils.IS_AUTO_START, true); toggle_StartOnBoot.setChecked(isAutostart); RelativeLayout.LayoutParams params3 = (RelativeLayout.LayoutParams) toggleButton_StartOnBoot .getLayoutParams(); if (isAutostart) { // 调整位置 params3.addRule(RelativeLayout.ALIGN_RIGHT, -1); params3.addRule(RelativeLayout.ALIGN_LEFT, R.id.toggle_StartOnBoot); toggleButton_StartOnBoot.setLayoutParams(params3); toggleButton_StartOnBoot .setImageResource(R.drawable.progress_thumb_selector); toggle_StartOnBoot.setGravity(Gravity.RIGHT | Gravity.CENTER_VERTICAL); } else { // 调整位置 params3.addRule(RelativeLayout.ALIGN_RIGHT, R.id.toggle_StartOnBoot); params3.addRule(RelativeLayout.ALIGN_LEFT, -1); toggleButton_StartOnBoot.setLayoutParams(params3); toggleButton_StartOnBoot .setImageResource(R.drawable.progress_thumb_off_selector); toggle_StartOnBoot.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL); } } private void setListeners() { toggle_AutoPlay.setOnCheckedChangeListener(new ToggleListener(this, "自动播放", toggle_AutoPlay, toggleButton_AutoPlay)); toggle_StartOnBoot.setOnCheckedChangeListener(new ToggleListener(this, "开机自启动", toggle_StartOnBoot, toggleButton_StartOnBoot)); // UI事件，按钮点击事件 OnClickListener clickToToggleListener = new OnClickListener() { @Override public void onClick(View v) { toggle_AutoPlay.toggle(); } }; toggleButton_AutoPlay.setOnClickListener(clickToToggleListener); layout_AutoPlay.setOnClickListener(clickToToggleListener); // UI事件，按钮点击事件 OnClickListener clickToToggleAutostartListener = new OnClickListener() { public void onClick(View v) { toggle_StartOnBoot.toggle(); } }; toggleButton_StartOnBoot .setOnClickListener(clickToToggleAutostartListener); layout_StartOnBoot .setOnClickListener(clickToToggleAutostartListener); }}工具类：
/2013.08.14_ToggleButton_demo/src/com/wwj/toggle/SettingUtils.java
package com.wwj.toggle;import android.content.Context;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.preference.PreferenceManager;public class SettingUtils { public static final String AUTO_PLAY = "auto_play"; // 自动播放 public static final String IS_AUTO_START = "is_auto_start"; // 开机自启动 /** * 获取配置 * @param context * @param name * @param defaultValue * @return */ public static boolean get(Context context, String name, boolean defaultValue) { final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); boolean value = prefs.getBoolean(name, defaultValue); return value; } /** * 保存用户配置 * @param context * @param name * @param value * @return */ public static boolean set(Context context, String name, boolean value) { final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); Editor editor = prefs.edit(); editor.putBoolean(name, value); return editor.commit(); //提交 }}/2013.08.14_ToggleButton_demo/src/com/wwj/toggle/DisplayUtils.java
package com.wwj.toggle;import android.content.Context;public class DisplayUtils { public static int dip2px(Context context, float dpValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); } public static int px2dip(Context context, float pxValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (pxValue / scale + 0.5f); } public static int getScreenWidth(Context context) { return context.getResources().getDisplayMetrics().widthPixels; } public static int getScreenHeight(Context context) { return context.getResources().getDisplayMetrics().heightPixels; }}
/2013.08.14_ToggleButton_demo/src/com/wwj/toggle/ToggleListener.java
package com.wwj.toggle;import android.content.Context;import android.view.Gravity;import android.view.animation.TranslateAnimation;import android.widget.CompoundButton;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.ImageButton;import android.widget.RelativeLayout;import android.widget.ToggleButton;/** * 状态按钮的监听事件 * * @author wwj * */public class ToggleListener implements OnCheckedChangeListener { private Context context; private String settingName; private ToggleButton toggle; private ImageButton toggle_Button; public ToggleListener(Context context, String settingName, ToggleButton toggle, ImageButton toggle_Button) { this.context = context; this.settingName = settingName; this.toggle = toggle; this.toggle_Button = toggle_Button; } @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // 保存设置 if ("自动播放".equals(settingName)) { SettingUtils.set(context, SettingUtils.AUTO_PLAY, isChecked); } else if ("开机自启动".equals(settingName)) { SettingUtils.set(context, SettingUtils.IS_AUTO_START, isChecked); } // 播放动画 RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) toggle_Button .getLayoutParams(); if (isChecked) { // 调整位置 params.addRule(RelativeLayout.ALIGN_RIGHT, -1); if ("自动播放".equals(settingName)) { params.addRule(RelativeLayout.ALIGN_LEFT, R.id.toggle_AutoPlay); } else if ("开机自启动".equals(settingName)) { params.addRule(RelativeLayout.ALIGN_LEFT, R.id.toggle_StartOnBoot); } toggle_Button.setLayoutParams(params); toggle_Button.setImageResource(R.drawable.progress_thumb_selector); toggle.setGravity(Gravity.RIGHT | Gravity.CENTER_VERTICAL); // 播放动画 TranslateAnimation animation = new TranslateAnimation( DisplayUtils.dip2px(context, 40), 0, 0, 0); animation.setDuration(200); toggle_Button.startAnimation(animation); } else { // 调整位置 if ("自动播放".equals(settingName)) { params.addRule(RelativeLayout.ALIGN_RIGHT, R.id.toggle_AutoPlay); } else if ("开机自启动".equals(settingName)) { params.addRule(RelativeLayout.ALIGN_RIGHT, R.id.toggle_StartOnBoot); } params.addRule(RelativeLayout.ALIGN_LEFT, -1); toggle_Button.setLayoutParams(params); toggle_Button .setImageResource(R.drawable.progress_thumb_off_selector); toggle.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL); // 播放动画 TranslateAnimation animation = new TranslateAnimation( DisplayUtils.dip2px(context, -40), 0, 0, 0); animation.setDuration(200); toggle_Button.startAnimation(animation); } }}再分享一下我老师大神的人工智能教程吧。零基础！通俗易懂！风趣幽默！还带黄段子！希望你也加入到我们人工智能的队伍中来！https://blog.csdn.net/jiangjunshow