ImageView相关

ImageViewActivity.java

package src.com;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class ImageViewActivity extends Activity {

/* 声明 Button、ImageView对象 */
private ImageView mImageView01;
private ImageView mImageView02;
private Button mButton01;
private Button mButton02;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

/* 取得 Button、ImageView对象 */
mImageView01 = (ImageView) findViewById(R.id.myImageView1);
mImageView02 = (ImageView) findViewById(R.id.myImageView2);
mButton01 = (Button) findViewById(R.id.myButton1);
mButton02 = (Button) findViewById(R.id.myButton2);

/* 设置ImageView背景图 */
mImageView01.setImageDrawable(getResources().getDrawable(R.drawable.right));
mImageView02.setImageDrawable(getResources().getDrawable(R.drawable.oa));

/* 用OnClickListener事件来启动 */
mButton01.setOnClickListener(new Button.OnClickListener(){

@Override
public void onClick(View v) {
/* 当启动后，ImageView立刻换背景图 */
mImageView01.setImageDrawable(getResources().getDrawable(R.drawable.right));
}

});

mButton02.setOnClickListener(new Button.OnClickListener(){

@Override
public void onClick(View v) {
/* 当启动后，ImageView立刻换背景图 */
mImageView01.setImageDrawable(getResources().getDrawable(R.drawable.left));
}

});
}
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/widget34" >"

<!-- 建立第一个ImageView -->
<ImageView
android:id="@+id/myImageView1"
android:layout_width="320px"
android:layout_height="280px"
android:layout_x="0px"
android:layout_y="36px" />
<!-- 建立第二个ImageView -->
<ImageView
android:id="@+id/myImageView2"
android:layout_width="104px"
android:layout_height="157px"
android:layout_x="101px"
android:layout_y="119px" />
<!-- 建立第一个Button -->
<Button
android:id="@+id/myButton1"
android:layout_width="105px"
android:layout_height="66px"
android:text="pic1"
android:layout_x="9px"
android:layout_y="356px" />
<!-- 建立第二个Button -->
<Button
android:id="@+id/myButton2"
android:layout_width="105px"
android:layout_height="66px"
android:text="pic2"
android:layout_x="179px"
android:layout_y="356px" />

</AbsoluteLayout>