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>
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}}<?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>
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"); }}