android之自定义组合控件

---------------setting_item---------------

<?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="80dp">
    <TextView
        android:layout_marginTop="10dp"
        android:id="@+id/tv_settting_item_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="22sp"
        android:text="设置是否自动更新"/>

    <TextView
        android:id="@+id/tv_setting_item_subtitle"
        android:layout_below="@+id/tv_settting_item_title"
        android:layout_marginTop="10dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="子标题"
        android:textSize="18sp"/>
    //下面的focusable和clickable是chekbox天生就有的属性,点击的优先级比组合控件高,所以吧组合控件设置了点击事件,就药吧checkbox的点击事件去掉
    <CheckBox
        android:focusable="false"
        android:clickable="false"
        android:id="@+id/ck_setting_item"
        android:layout_marginRight="10dp"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
<View
    android:id="@+id/tv_setting_item_line"
    android:layout_alignParentBottom="true"
    android:layout_width="match_parent"
    android:layout_height="1dp"
    android:background="#000000"
    android:layout_marginRight="1dp"/>
</RelativeLayout>
/**
 * Created by lambo on 2018/4/15.
 * 自定义组合控件---多个控件组成,可以复用
 */

public class Setting_item extends RelativeLayout {
CheckBox cb;
    private TextView tv_subtile;
    private TextView tv_title;
    private String descoff;
    private String descon;
    private String title;

    //带一个参数的构造方法,初始化布局文件的时候调用
    public Setting_item(Context context) {
        super(context);
        initView(context);
    }

    private void initView(Context context) {
        //吧布局文件转换成view
        View.inflate(context, R.layout.setting_item, this);
        cb=findViewById(R.id.ck_setting_item);
        tv_subtile = findViewById(R.id.tv_setting_item_subtitle);
        tv_title = findViewById(R.id.tv_settting_item_title);
    }
/*带两个参数的构造方法,布局文件使用的时候调用*/
    public Setting_item(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView(context);
        //获取命名空间(http://schemas.android.com/apk/res-auto)下的属性title,descon,descoff,在attr.xml中给textview中扩展了属性
        title = attrs.getAttributeValue("http://schemas.android.com/apk/res-auto","title");
        descon = attrs.getAttributeValue("http://schemas.android.com/apk/res-auto","descon");
        descoff = attrs.getAttributeValue("http://schemas.android.com/apk/res-auto","descoff");
        tv_title.setText(title);
    }

    public Setting_item(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initView(context);
    }
//检验组合控件是否选中
    public Boolean isChecked(){

        return cb.isChecked();
    }

    //设置组合控件
    public void setChecked(Boolean isChecked){
        if(isChecked){
            setSubtile(descon);
        }else {
            setSubtile(descoff);
        }
        cb.setChecked(isChecked);
    }

    //设置组合控件自标题的方法
    public void setSubtile(String  subtilte){

tv_subtile.setText(subtilte);
    }
}

---------------------res/values/attr.xml-----------------添加属性

<?xml version="1.0" encoding="utf-8"?>

<resources>
    //给自定义的组合控件Setting_item扩展属性
    <declare-styleable name="Setting_item">
        <attr name="title" format="string"/>
        <attr name="descoff" format="string"/>
        <attr name="descon" format="string"/>
    </declare-styleable>


</resources>


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转载自blog.csdn.net/u011146511/article/details/80033773