Question

我对标签活动有点困惑，我在主视图上有3个标签，我可以使用标签切换视图，例如主要到课程或课程到主页，

但我想为每个标签调用不同的服务，例如

标签1（通话）：当用户点击它时，它会拨打电话号码“88888888888”
标签2（电子邮件）：当用户点击它时，用户将直接收到“撰写新电子邮件”并传递“aaaaaaa@aaa.com”之类的值
Tab 3（Web）：当用户点击它时，它将打开一个带有“www.helpme.co.uk”的浏览器

我目前的java和xml文件编码如下，

Java代码：

package com.NVT.android;

import android.app.TabActivity;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.widget.TabHost;

public class MainTabActivity extends TabActivity{

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

            Resources res = getResources(); // Resource object to get Drawables
            TabHost tabHost = getTabHost();  // The activity TabHost
            TabHost.TabSpec spec;  // Resusable TabSpec for each tab
            Intent intent;  // Reusable Intent for each tab

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

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

            // Do the same for the other tabs
            intent = new Intent().setClass(this, Courses.class);
            spec = tabHost.newTabSpec("courses").setIndicator("Courses",
                              res.getDrawable(R.drawable.ic_tab_artists_white))//m using same buttons for each tab u can change it by adding new drawable xml.. got that
                          .setContent(intent);
            tabHost.addTab(spec);

            intent = new Intent().setClass(this, Courses.class);
            spec = tabHost.newTabSpec("courses").setIndicator("Courses",
                              res.getDrawable(R.drawable.ic_tab_artists_white))//m using same buttons for each tab u can change it by adding new drawable xml.. got that
                          .setContent(intent);
            tabHost.addTab(spec);



        }
    }

XML编码

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:padding="5dp">
    <RelativeLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
             />
                  <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:padding="5dp"></FrameLayout>

    </RelativeLayout>
    </LinearLayout>
</TabHost>

使用Tab活动Android调用服务

0 个答案: