ImageButton
事件监听器无效。
这是我的代码(已更新):
XML:
<ScrollView ...>
<LinearLayout
android:orientation="vertical"
...
>
<HorizontalScrollView
...
>
<LinearLayout
android:orientation="horizontal"
...
>
<ImageButton
android:id="@+id/img_btn1"
/>
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
</ScrollView>
Java代码:
public class Main extends Activity{
ImageButton imgBtn1;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imgBtn1 = (ImageButton) findViewById(R.id.img_btn1);
imgBtn1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.w("onClick", "ImageButton Clicked");
}
});
}
}
此代码无效。谢谢你的帮助。
答案 0 :(得分:1)
试试这个:-----
ImageButton imgBtn1 = (ImageButton)findViewById(R.id.img_btn1);
imgButn1.setOnClickListener( new View.OnClickListener(){
@Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "+", Toast.LENGTH_SHORT).show();
}
});
答案 1 :(得分:0)
这在我的方面运作良好:
的setContentView(R.layout.vhscroll);
ImageButton imageButton =(ImageButton)findViewById(R.id.imagebutton1);
imageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(VHScrollViewActivity.this, "You clicked image button", Toast.LENGTH_LONG).show();
}
});
和xml代码是:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<ScrollView android:id="@+id/scrollview" android:layout_width="fill_parent" android:layout_height="wrap_content">
<LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical">
<HorizontalScrollView android:layout_width="fill_parent" android:layout_height="wrap_content">
<LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content">
<ImageButton android:id="@+id/imagebutton1" android:layout_width="100dip" android:layout_height="100dip" android:src="@drawable/sample_0" android:scaleType="fitXY"/>
</.......>