我真的不知道如何解决这个问题，我找到了很多解决方案，但它仍然不起作用。
我的问题是在我的活动跳转到 TabHost 后，标签页浏览变成空白，但是当我切换标签时，它变成了正常。
我猜活动第一次跳转时日期已经准备好了，但为什么它不显示正常？
任何帮助将非常感激..
这是跳转 TabHost 所在的活动。
public class ListContainActivity extends FragmentActivity{
public static final String tag = "COOLSMILE_DEBUG";
private TabHost tabHost ;
ContextTask contextTask ;
String mString="";
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.showcontain);
ProgressRefresh();
}
private void InitUI(){
getIntentExtra();
Log.v(tag, "----------- InitUI start -----------");
InitTabHost();
}
private void InitTabHost(){
Log.v(tag, "----------- InitTabHost start -----------");
TabHost.TabSpec spec;
tabHost = (TabHost) findViewById(android.R.id.tabhost);
tabHost.setup();
spec=tabHost.newTabSpec("Refresh").setIndicator("Refresh").setContent(R.id.contain_tab0);
tabHost.addTab(spec);
spec=tabHost.newTabSpec("Love").setIndicator("Love").setContent(R.id.contain_tab1);
tabHost.addTab(spec);
spec=tabHost.newTabSpec("Comment").setIndicator("Comment").setContent(R.id.contain_tab2);
tabHost.addTab(spec);
spec=tabHost.newTabSpec("Onward").setIndicator("Onward").setContent(R.id.contain_tab0);
tabHost.addTab(spec);
spec=tabHost.newTabSpec("Goback").setIndicator("Goback").setContent(R.id.contain_tab1);
tabHost.addTab(spec);
InitClickListener();
}
private void ProgressRefresh(){
Log.v(tag, "----------- progress_refresh start -----------");
contextTask = new ContextTask(0);
TaskHost taskHost = new TaskHost(){
@Override
public void onPreExecute(int requestCode) {
// TODO Auto-generated method stub
super.onPreExecute(requestCode);
Log.v(tag, "----------- progress_refresh.onPreExecute() start -----------");
InitUI();
}
@Override
public void onPostExecute(int requestCode, String result) {
// TODO Auto-generated method stub
super.onPostExecute(requestCode, result);
Log.v(tag, "----------- progress_refresh.onPostExecute() start -----------"+result);
TextView txt = (TextView)findViewById(R.id.text_Result);
txt.setText("DoInBackground Result :"+result);
TextView txt1 = (TextView)findViewById(R.id.text_Refresh);
txt1.setText("Hello my name is "+mString);
}
};
contextTask.setTaskHost(taskHost);
contextTask.setProgress(new SimpleDialogProgress(this,"正在获取数据..."));
contextTask.execute();
}
private void InitClickListener(){
Log.v(tag, "----------- InitClickListener start -----------");
RadioGroup radioGroup=(RadioGroup) this.findViewById(R.id.main_tab);
radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
switch (checkedId) {
case R.id.main_tab_addHome:
tabHost.setCurrentTabByTag("Refresh");
break;
case R.id.main_tab_addExam:
tabHost.setCurrentTabByTag("Love");
break;
case R.id.main_tab_myExam:
tabHost.setCurrentTabByTag("Comment");
break;
case R.id.main_tab_message:
tabHost.setCurrentTabByTag("Onward");
break;
case R.id.main_tab_settings:
tabHost.setCurrentTabByTag("Goback");
break;
default:
tabHost.setCurrentTabByTag("Refresh");
break;
}
}
});
}
private void getIntentExtra(){
Intent intent = getIntent();
mString = intent.getExtras().getString("PRESIDENTS_CONTENT");
}
}