Android自定义控件之组合控件学习笔记分享

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="60dp" >

 <ImageView
  android:id="@+id/icon_Iv"
  android:layout_width="35dp"
  android:layout_height="35dp"
  android:layout_centerVertical="true"
  android:layout_marginLeft="30dp"
  android:src="@drawable/phone_qiyi_explore_friends" />

 <TextView
  android:id="@+id/tv"
  android:layout_width="wrap_content"
  android:layout_height="match_parent"
  android:layout_marginLeft="80dp"
  android:gravity="center"
  android:text="朋友圈"
  android:textSize="15sp"
  android:textStyle="bold" />

 <ImageView
  android:layout_width="wrap_content"
  android:layout_height="match_parent"
  android:layout_alignParentRight="true"
  android:layout_marginRight="20dp"
  android:src="@drawable/phone_my_inc_arrow" />

 <View
  android:layout_width="match_parent"
  android:layout_height="0.5dp"
  android:layout_alignParentBottom="true"
  android:layout_marginLeft="5dp"
  android:layout_marginRight="5dp"
  android:background="#000" />

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>
 <!-- 自定义属性：src和text -->
 <declare-styleable name="myView_attrs">
  <attr name="src" format="reference"></attr>
  <attr name="text" format="string"></attr>
 </declare-styleable>
</resources>

/**
 * 自定义组合控件（包括一个ImageView和TextView）
 * @author Administrator
 *
 */
public class MyView extends RelativeLayout{

 private TextView tv;
 private ImageView icon_Iv;
 public MyView(Context context) {
  this(context,null);
 }
 public MyView(Context context, AttributeSet attrs) {
  super(context, attrs);
  initView(context);
  //拿到自定义的属性
  TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.myView_attrs);
  //获取自定义属性的值
  String text = ta.getString(R.styleable.myView_attrs_text);
  Drawable drawable = ta.getDrawable(R.styleable.myView_attrs_src);
  //把值设置到相应组件上
  icon_Iv.setImageDrawable(drawable);
  tv.setText(text);
 }
 private void initView(Context context) {
  //把自定义的布局加载进来
  View.inflate(context,R.layout.myview,this);
  //找到布局中的组件
  icon_Iv = (ImageView) this.findViewById(R.id.icon_Iv);
  tv = (TextView) this.findViewById(R.id.tv);

 }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android xmlns:briup="http://schemas.android.com/apk/res/com.example.test"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 tools:context="com.example.test.MainActivity" >
 <com.example.test.MyView
  android:id="@+id/myView"
  briup:src="@drawable/phone_qiyi_explore_friends"
  briup:text="朋友圈" 
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
 <com.example.test.MyView
  android:id="@+id/myView1"
  briup:src="@drawable/phone_qiyi_gusslike_icon"
  briup:text="啪啪奇" 
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
 <com.example.test.MyView
  android:id="@+id/myView2"
  briup:text="消息" 
  briup:src="@drawable/phone_qiyi_message_icon"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
</LinearLayout>