onTabChanged方法不是inwalking,

时间:2012-03-29 06:27:40

标签: android tabs

当我单击标签栏以更改选项卡时,未调用我的方法onTabChanged()

public class ZoobuzzActivity extends TabActivity implements OnTabChangeListener {
/** Called when the activity is first created. */
TabHost tabHost;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.first_tab);
}

public void onTabChanged(String tabId) {

    for (int i = 0; i < tabHost.getTabWidget().getChildCount(); i++) {
        tabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.RED);
    }
    tabHost.getTabWidget().getChildAt(tabHost.getCurrentTab()).setBackgroundColor(Color.GREEN);
   }
}

请帮助我,我想在标签选择发生变化时改变颜色。

1 个答案:

答案 0 :(得分:2)

您需要将 OnTabChangeListener 设置为 TabHost ,如下所示:

//set tab change listener
tabHost.setOnTabChangedListener(this);

//where 'this' is a reference to your activity ZoobuzzActivity