使用Android应用程序创建标签 [英] creating tabs using android app

问题描述

我正在尝试在android应用中创建标签页，并且正在做一个教程，可在此处找到

http://developer.android.com/resources/tutorials/views/hello-tabwidget.html [^ ]

而且我完全正确地遵循了它，但是程序运行了1秒钟，然后说它停止了.我不知道我在做什么.错误是在此页面中，它说的是-@supressWarnings("deprecation")我不知道为什么.任何人都可以帮忙吗?也许任何已经关注本教程的人?

这是我的代码:

i am trying to create tabs in an android app, and i am doing a tutorial which is found in here

http://developer.android.com/resources/tutorials/views/hello-tabwidget.html[^]

and i followed it accuratly, but the program is running for 1 second and then saying that it stopped. I don''t know what i am doing wrond. the error is in this page as it is saying - @supressWarnings("deprecation") i dont know why. Please can anyone help? maybe anyone who already followed this tutorial?

this is my code:

import android.app.TabActivity; //  - This is crossed in the middle
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.widget.TabHost;


@SuppressWarnings("deprecation")
public class DemonstratorActivity extends TabActivity {

	 public void onCreate(Bundle savedInstanceState) {
	        super.onCreate(savedInstanceState);
	        setContentView(R.layout.main);

	        Resources res = getResources(); 
	        TabHost tabHost = getTabHost();  // The activity TabHost - This is crossed in the middle
	        TabHost.TabSpec spec; 
	        Intent intent;  

	        // Create an Intent to launch an Activity for the tab (to be reused)
	        intent = new Intent().setClass(this, DriveActivity.class);

	        // Initialize a TabSpec for each tab and add it to the TabHost
	        spec = tabHost.newTabSpec("Tab1").setIndicator("Tab1",
	                          res.getDrawable(R.drawable.Tab1picture))
	                      .setContent(intent);
	        tabHost.addTab(spec);

	        // Do the same for the other tabs
	        intent = new Intent().setClass(this, LightsControlActivity.class);
	        spec = tabHost.newTabSpec("Tab2").setIndicator("Tab2",
	                          res.getDrawable(R.drawable.Tab2picture))
	                      .setContent(intent);
	        tabHost.addTab(spec);

	        intent = new Intent().setClass(this, NavigationActivity.class);
	        spec = tabHost.newTabSpec("Tab3").setIndicator("Tab3",
	                          res.getDrawable(R.drawable.Tab3picture))
	                      .setContent(intent);
	        tabHost.addTab(spec);

	        tabHost.setCurrentTab(2);
	    }
	}

推荐答案

您混淆了代码.
该Activity类不是用于创建选项卡的类.
在本教程的第5步中，创建并使用了另一个类.必须创建选项卡.

you mixed up the code.
That Activity class is not the one to create the tabs.
In step 5 of the tutorial is another class created and used. that one has to create the tabs.

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