跳转进TabHost后,显示默认页面为空

[J2EE程序员]

Activity 跳转到 TabHost后 Tab标签页为空,但是切换下tab后, 又能正常显示,
这应该表明其实数据跳转过来的时候就已经初始好了!

这是 跳转后 的TabHost所在的Activity

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");
		}

}

[_7爷]

我看是初始化好了。但是你没有准备让第一个tab显示。

[haoyizsw]

tabhost.setCurrentTab(0);初始化的时候加这个试试

[J2EE程序员]

[Quote=引用楼主 的回复:]
Activity 跳转到 TabHost后 Tab标签页为空,但是切换下tab后, 又能正常显示,
这应该表明其实数据跳转过来的时候就已经初始好了!

这是 跳转后 的TabHost所在的Activity

Java code

public class ListContainActivity extends FragmentActivity{

public static f……
[/Quote]

我把XML 中的Framelayout下的 tab容器,对调了下位置,就解决问题了!! 但是我明明是通过setcurrentByTag()方法来设置 tab切换的!!!!

[J2EE程序员]

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);

问题就出现在这串代码里, 里面的TAG 与 setContent(R.id.contain_tab1);
不是一一对应的关系 , 原以为只要TAG值唯一就行了!..犯错了!!
之前为了图方便, 只在XML里写了3个tab 复用了2个tab用来测试,结果调了1天 ,,我靠靠靠靠靠,太悲剧了!!