我正在尝试在TableRow中显示一个简单的ImageView,但是由于某种原因它不会显示.如果我将另一控件添加到另一行,则imageView确实会显示,因此似乎只是没有正确地强制大小.我的xml如下:
<TableLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:background="#4B088A"
android:id="@+id/ImageTable">
<TableRow android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="5dp"
android:id="@+id/ImageTableRow"/>
</TableLayout>
我用来添加ImageView的代码是:
TableLayout tableLayout = (TableLayout) findViewById(R.id.ImageTable);
TableRow tr = new TableRow(this);
TableRow.LayoutParams lp = new
TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT ,TableRow.LayoutParams.WRAP_CONTENT);
tr.setLayoutParams(lp);
m_imageView = new MyImageView(getApplicationContext());
m_imageView.setBackgroundColor(Color.GRAY);
m_imageView.setImageBitmap(charty);
tr.addView(m_imageView);
tableLayout.addView(tr);
解决方法:
试试这个代码
将您的xml“ activity_main”写为
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<ImageView
android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_action_search" />
</TableRow>
</TableLayout>
</LinearLayout>
ic_action_search是您在可绘制文件夹中的图像,并以
public class MainActivity extends Activity
{
ImageView image;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}