Android 自定义Preference

package com.rasa.game;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.res.TypedArray;
import android.preference.Preference;
import android.util.AttributeSet;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class CustomPreference extends Preference {
    private int mClickCounter = 100;
    private Button ok_button = null;

    // This is the constructor called by the inflater
    public CustomPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        setWidgetLayoutResource(R.layout.custom_preference);
    }

    @Override
    protected void onBindView(View view) {
        super.onBindView(view);

        // Set our custom views inside the layout
        final TextView myTextView = (TextView) view
                .findViewById(R.id.mypreference_widget);

        ok_button = (Button) view.findViewById(R.id.ok);
        ok_button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                mClickCounter += 1;
                notifyChanged();// notify UI to refresh
                SharedPreferences sp = getSharedPreferences();
                Editor et = sp.edit();
                et.putInt("mypreference_widget", mClickCounter);
                et.commit();
            }
        });
        if (myTextView != null) {
            SharedPreferences sp = getSharedPreferences();
            mClickCounter = sp.getInt("mypreference_widget", 200);
            myTextView.setText(String.valueOf(mClickCounter));
        }
    }

    @Override
    protected Object onGetDefaultValue(TypedArray a, int index) {
        return a.getInteger(index, 0);
    }

    @Override
    protected void onClick() {
        // TODO Auto-generated method stub
        int nKeep = mClickCounter + 1;
        callChangeListener(nKeep);// add lock
        mClickCounter = nKeep;
        persistInt(mClickCounter);
        notifyChanged();// notify UI to refresh
        super.onClick();
    }

    @Override
    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
        if (restoreValue) {
            // Restore state
            mClickCounter = getPersistedInt(mClickCounter);
        } else {
            // Set state
            int value = (Integer) defaultValue;
            mClickCounter = value;
            persistInt(value);
        }

    }


}

　　

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/custompref" android:orientation="vertical"
    android:layout_width="wrap_content" android:layout_height="wrap_content">
    <TextView android:id="@+id/mypreference_widget"
        android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:layout_gravity="center_vertical" android:layout_marginRight="6sp"
        android:text="Hello Kitty" android:focusable="false"
        android:clickable="false" />
    <LinearLayout android:orientation="horizontal"
        android:layout_width="wrap_content" android:layout_height="wrap_content">
        <Button android:id="@+id/ok" android:text="OK"
            android:layout_weight="1.0" android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <Button android:id="@+id/cancel" android:text="cancel"
            android:layout_weight="1.0" android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
</LinearLayout>

　　

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <CheckBoxPreference android:key="music"
        android:title="@string/music_title" android:summary="@string/music_summary"
        android:defaultValue="true" />
    <CheckBoxPreference android:key="hints"
        android:title="@string/hints_title" android:summary="@string/hints_summary"
        android:defaultValue="true" />
    <PreferenceScreen android:key="detailSetting"
        android:title="@string/detail_setting_title" android:summary="@string/detail_setting_summary">
        <CheckBoxPreference android:key="music1"
            android:title="@string/music_title" android:summary="@string/music_summary"
            android:defaultValue="true" />
        <CheckBoxPreference android:key="music2"
            android:title="@string/music_title" android:summary="@string/music_summary"
            android:defaultValue="true" />
    </PreferenceScreen>
    <PreferenceScreen android:key="customSetting"
        android:title="@string/custom_setting_title" android:summary="@string/custom_setting_summary">
        <intent android:action="android.intent.action.MAIN"
            android:targetPackage="com.rasa.game" android:targetClass="com.rasa.game.CustomSetting" />
    </PreferenceScreen>
    <com.rasa.game.CustomPreference
        android:key="my_preference" android:title="Advance Preference"
        android:summary="You can custom design your prefrence UI"
        android:defaultValue="100" />
</PreferenceScreen>