android学习笔记27--------------ImageButton
public class ImageButtonActivity extends Activity
{
private ImageButton imageButton;
private TextView textView;
private int i = 0;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imageButton = (ImageButton) findViewById(R.id.ImageButton1);
textView = (TextView) findViewById(R.id.text);
/*
* imageButton.setOnFocusChangeListener(new OnFocusChangeListener() {
*
* @Override public void onFocusChange(View v, boolean hasFocus) { if
* (hasFocus==true) { imageButton.setImageResource(R.drawable.image1);
* textView.setText("获得焦点"); } else {
* imageButton.setImageResource(R.drawable.image2);
* textView.setText("失去焦点"); }
*
* } });
*/
imageButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
if (i == 0)
{
imageButton.setImageResource(R.drawable.image2);
textView.setText("点击了按钮");
i = 1;
} else
{
imageButton.setImageResource(R.drawable.image1);
textView.setText("又点击了按钮");
i = 0;
}
}
});
}
}
public class ImageButtonActivity extends Activity
{
private ImageButton imageButton;
private TextView textView;
private int i = 0;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imageButton = (ImageButton) findViewById(R.id.ImageButton1);
textView = (TextView) findViewById(R.id.text);
/*
* imageButton.setOnFocusChangeListener(new OnFocusChangeListener() {
*
* @Override public void onFocusChange(View v, boolean hasFocus) { if
* (hasFocus==true) { imageButton.setImageResource(R.drawable.image1);
* textView.setText("获得焦点"); } else {
* imageButton.setImageResource(R.drawable.image2);
* textView.setText("失去焦点"); }
*
* } });
*/
imageButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
if (i == 0)
{
imageButton.setImageResource(R.drawable.image2);
textView.setText("点击了按钮");
i = 1;
} else
{
imageButton.setImageResource(R.drawable.image1);
textView.setText("又点击了按钮");
i = 0;
}
}
});
}
}
[java]
<?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"
>
<TextView
android:id="@+id/text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<ImageButton
android:id="@+id/ImageButton1"
android:background="@drawable/image1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"></ImageButton>
</LinearLayout>
摘自 奔跑的蜗牛
补充:移动开发 , Android ,