android项目自定义组合控件添加属性

<?xml version="1.0" encoding="utf-8"?>
<resources>
     <declare-styleable name="SeetingView">
        <attr name="up" format="string" />
        <attr name="down_on" format="string" />
        <attr name="down_off" format="string" />
    </declare-styleable>
</resources>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:itheima="http://schemas.android.com/apk/res/com.itheima.superman"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@drawable/home_bg">

    <TextView 
        style="@style/TitleStyle"
        android:text="设置中心"
        />
    <com.itheima.view.SeetingView
        android:id="@+id/stv_updata"
        android:layout_marginTop="5dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        itheima:up="自动更新设置"
        itheima:down_on="自动更新已经开启"
         itheima:down_off="自动更新已经关闭"
        />
   

</LinearLayout>

package com.itheima.view;

import com.itheima.superman.R;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.CheckBox;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class SeetingView extends RelativeLayout{

    private TextView tv_up;
    private TextView tv_down;
    private CheckBox ck_right;
    private String up;
    private String down_on;
    private String down_off;
    //命名空间
    private String nameSpace = "http://schemas.android.com/apk/res/com.itheima.superman";
    //自定义样式调用
    public SeetingView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initView();
    }
    //自定义属性调用
    public SeetingView(Context context, AttributeSet attrs) {
        super(context, attrs);
        //获取命名空间下，键名称为“up”的值
        up = attrs.getAttributeValue(nameSpace, "up");
        down_on = attrs.getAttributeValue(nameSpace, "down_on");
        down_off = attrs.getAttributeValue(nameSpace, "down_off");
        initView();
    }
    //声明调用
    public SeetingView(Context context) {
        super(context);
        initView();
    }
    //初始化布局
    private void initView(){
        //给这个布局一个父控件
        View.inflate(getContext(),R.layout.item_seeting, this);
        tv_up = (TextView) findViewById(R.id.tv_up);
        tv_down = (TextView) findViewById(R.id.tv_down);
        ck_right = (CheckBox) findViewById(R.id.ck_right);
        //在初始化的时候设置这个值
        tv_up.setText(up);
    }
    //设置顶部文字
    public void setUp(String text){
        tv_up.setText(text);
    }
    //设置底部文字
    public void setDown(String text){
        tv_down.setText(text);
    }
    //是否被选中
    public boolean isChecked(){
        return ck_right.isChecked();
    }
    //设置选择状态
    public void setChecked(boolean b){
        if(b){
            ck_right.setChecked(b);
            tv_down.setText(down_on);
        }else{
            ck_right.setChecked(b);
            tv_down.setText(down_off);
        }
    }
    

}