android自定义控件1

这定义一个控件，包含三个TextView:
控件xml:mywidget.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical" android:layout_width="match_parent"
	android:layout_height="match_parent">
	<TextView android:text="TextView" android:id="@+id/textView1"
		android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
	<TextView android:text="TextView" android:id="@+id/textView2"
		android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
	<TextView android:text="TextView" android:id="@+id/textView3"
		android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
</LinearLayout>

控件代码:

package com.tcl.testmywidget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;

public class MyWidget extends LinearLayout{
	private View mView;
	/**
	 * 在xml中定义控件的构造函数
	 * @param context
	 * @param attrs
	 */
	public MyWidget(Context context, AttributeSet attrs) {
		super(context, attrs);
		mView = LayoutInflater.from(context).inflate(R.layout.mywidget, this, true);
	}
	/**
	 * 设置第一个textview
	 * @param string
	 */
	public void setText1(String string)
	{
		if(mView!=null)
		{
			TextView textView = (TextView) mView.findViewById(R.id.textView1);
			textView.setText(string);
		}
	}
	/**
	 * 设置第二个textview
	 * @param string
	 */
	public void setText2(String string)
	{
		if(mView!=null)
		{
			TextView textView = (TextView) mView.findViewById(R.id.textView2);
			textView.setText(string);
		}
	}
	public void setText3(String string)
	{
		if(mView!=null)
		{
			TextView textView = (TextView) mView.findViewById(R.id.textView3);
			textView.setText(string);
		}
	}
	/**
	 * 在代码中定义控件的构造函数
	 * @param context
	 */
	public MyWidget(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}

}

测试xml:main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <com.tcl.testmywidget.MyWidget
    android:id="@+id/mywidget"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    ></com.tcl.testmywidget.MyWidget>
</LinearLayout>

测试代码：

package com.tcl.testmywidget;

import android.app.Activity;
import android.os.Bundle;

public class TestMyWidgetActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        MyWidget myWidget = (MyWidget) findViewById(R.id.mywidget);
        myWidget.setText1("this is text1");
        myWidget.setText2("this is text2");
        myWidget.setText3("this is text3");
    }
}

效果图：