Question

单击列表项时，我需要调用带有2个选项卡的界面。这两个标签应包含2个单独的活动。

我设计使用扩展Tab活动的类来调用每个选项卡，并为每个选项卡分隔活动类。我遇到的问题是，我需要从列表中调用tab活动类。我该怎么办？

这是我的代码：

public void onItemClick(AdapterView<?> parent, View view, int position,long id3)
{
     Intent myIntent = new Intent(getApplicationContext(), InfoActivity.class);
     startActivity(myIntent);
}

这是日志：

02-11 15:50:21.978: E/AndroidRuntime(745): at dalvik.system.NativeStart.main(Native Method)
02-11 15:50:21.978: E/AndroidRuntime(745): Caused by: java.lang.RuntimeException: Your content must have a TabHost whose id attribute is 'android.R.id.tabhost'
02-11 15:50:21.978: E/AndroidRuntime(745): at android.app.TabActivity.onContentChanged(TabActivity.java:105)
02-11 15:50:21.978: E/AndroidRuntime(745): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:210)
02-11 15:50:21.978: E/AndroidRuntime(745): at android.app.Activity.setContentView(Activity.java:1657)
02-11 15:50:21.978: E/AndroidRuntime(745): at sam.todo.OnTime.InfoActivity.onCreate(InfoActivity.java:22)
02-11 15:50:21.978: E/AndroidRuntime(745): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-11 15:50:21.978: E/AndroidRuntime(745): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)

info.xml代码

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

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="45dp" >

        </TabWidget>
        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent">


            <LinearLayout
                android:id="@+id/linearLayout1"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" >

                <TextView
                    android:id="@+id/txtViewSelectedTask"
                    android:layout_width="match_parent"
                    android:layout_height="46dp"
                    android:textAppearance="?android:attr/textAppearanceMedium" />

                <EditText
                    android:id="@+id/txtInfo"
                    android:layout_width="match_parent"
                    android:layout_height="300dp"
                    android:layout_weight="1.84"
                    android:gravity="top|left"
                    android:inputType="textMultiLine" >

                    <requestFocus />
                </EditText>

                <Button
                    android:id="@+id/btnSave2"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/save" />
            </LinearLayout>

        </FrameLayout>
    </LinearLayout>

</TabHost>

从另一个界面调用带有2个选项卡的界面

0 个答案: