大家好,我已经设置了一个选项卡布局,以便每个选项卡都是我的自定义位图。这是主要的java文件:
public class HelloTabWidget1 extends TabActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Resources res = getResources();
TabHost tabHost = getTabHost();
TabHost.TabSpec spec;
Intent intent;
intent = new Intent().setClass(this, ArtistsActivity.class);
ImageView imgView1 = new ImageView(this);
BitmapDrawable bmd1 = new BitmapDrawable();
bmd1 = (BitmapDrawable) res.getDrawable(R.drawable.blue);
imgView1.setImageDrawable(bmd1);
spec = tabHost.newTabSpec("firsttab").setIndicator(imgView1)
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, AlbumsActivity.class);
ImageView imgView2 = new ImageView(this);
BitmapDrawable bmd2 = new BitmapDrawable();
bmd2 = (BitmapDrawable) res.getDrawable(R.drawable.pink);
imgView2.setImageDrawable(bmd2);
spec = tabHost.newTabSpec("secondtab").setIndicator(imgView2)
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, SongsActivity.class);
ImageView imgView3 = new ImageView(this);
BitmapDrawable bmd3 = new BitmapDrawable();
bmd3 = (BitmapDrawable) res.getDrawable(R.drawable.purple);
imgView3.setImageDrawable(bmd3);
spec = tabHost.newTabSpec("thirdtab").setIndicator(imgView3)
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, Forthtab.class);
ImageView imgView4 = new ImageView(this);
BitmapDrawable bmd4 = new BitmapDrawable();
bmd4 = (BitmapDrawable) res.getDrawable(R.drawable.red);
imgView4.setImageDrawable(bmd4);
spec = tabHost.newTabSpec("forthtab").setIndicator(imgView4)
.setContent(intent);
tabHost.addTab(spec);
tabHost.setCurrentTab(0);
}
}
我可以得到我想要的任何位图作为选项卡,问题是我的原始位图太小而无法看到,一旦我增加它们的大小,选项卡最终会出现在屏幕中间,上面有一个巨大的空白黑色空间. 当我单击一个黑色空间时,它会相应地更改选项卡。有没有办法将它定位回最顶部并让每个位图填充一个选项卡?