1
I want to display the tab bar and listview but when my main activity launched then my tab bar gets hided... so tell me what is the problem in my xml or my src file.
我的問題是：我的選項卡欄未顯示，只有列表視圖顯示在全屏幕上。想要在我的發佈活動中顯示tabbar和listview
在這裏，我的lisview首先出現在後面，我的標籤欄略微可見。
Main Activity:(Here I am displaying tab host)
package com.example.testlist;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import android.app.Activity;
import android.app.TabActivity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
public class MainActivity extends TabActivity implements OnTabChangeListener{
/*******************************/
//Test for tab bar
TabHost tabHost;
/*******************************/
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
/*setContentView(R.layout.list_view_layout);
ListView listview=(ListView)findViewById(R.id.listView1);
*/
setContentView(R.layout.layout_tab_bar);
// Get TabHost Refference
tabHost = getTabHost();
// Set TabChangeListener called when tab changed
tabHost.setOnTabChangedListener(this);
TabHost.TabSpec spec;
Intent intent;
/************* TAB1 (home)************/
// Create Intents to launch an Activity for the tab (to be reused)
intent = new Intent().setClass(this, HomeTab.class);
spec = tabHost.newTabSpec("First").setIndicator("")
.setContent(intent);
//Add intent to tab
tabHost.addTab(spec);
/************* TAB2(alerts) ************/
intent = new Intent().setClass(this, Tab2.class);
spec = tabHost.newTabSpec("Second").setIndicator("")
.setContent(intent);
tabHost.addTab(spec);
/************* TAB3 (newsletters)************/
intent = new Intent().setClass(this, Tab3.class);
spec = tabHost.newTabSpec("Third").setIndicator("")
.setContent(intent);
tabHost.addTab(spec);
/************* TAB4(calendars) ************/
intent = new Intent().setClass(this, Tab4.class);
spec = tabHost.newTabSpec("Fourth").setIndicator("")
.setContent(intent);
tabHost.addTab(spec);
/************* TAB5 (more)************/
intent = new Intent().setClass(this, Tab5.class);
spec = tabHost.newTabSpec("Fifth").setIndicator("")
.setContent(intent);
tabHost.addTab(spec);
// Set drawable images to tab
tabHost.getTabWidget().getChildAt(0).setBackgroundResource(R.drawable.homeicon);
tabHost.getTabWidget().getChildAt(1).setBackgroundResource(R.drawable.alert_small_icon);
tabHost.getTabWidget().getChildAt(2).setBackgroundResource(R.drawable.newsl);
tabHost.getTabWidget().getChildAt(3).setBackgroundResource(R.drawable.menu_calendar);
tabHost.getTabWidget().getChildAt(4).setBackgroundResource(R.drawable.more_big);
// Set Tab1 as Default tab and change image
tabHost.getTabWidget().setCurrentTab(0);
}
@Override
public void onTabChanged(String tabId) {
}
}
HomeTab.java:(this class loads the content of first tab)
此類將加載主頁選項卡的內容，其中出現與主頁選項卡相關的內容，但我的選項卡欄隱藏在此處。
package com.example.testlist;
import java.util.ArrayList;
import android.R.anim;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.ListView;
public class HomeTab extends Activity{
MyCustomAdapter myCustomAdapter;
Context context=HomeTab.this;
String optionName[]=new String[] {"Alerts","Events","Newsletters","News","Parent Info","Logins","Parent Teacher Interviews","Flexi School LunchOrder","Contact US","Kool Content"};
// String text2[]=new String[] {"sub1","sub2","sub3","sub4","sub1","sub2","sub3","sub4","sub1","sub2"};
//int image[]=new int[] {R.drawable.alert_small_icon,R.drawable.events,R.drawable.newsletter,R.drawable.newsletter,R.drawable.arrow_24,R.drawable.arrow_24,R.drawable.arrow_24,R.drawable.arrow_24,R.drawable.arrow_24,R.drawable.arrow_24};
int imageArrow[]=new int[]{R.drawable.right_arrow};
ArrayList<ListModel> mylist=new ArrayList<ListModel>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_view_layout);
ListView listview=(ListView)findViewById(R.id.listView1);
getDatainList();
listview.setAdapter(new MyCustomAdapter(context, mylist));
listview.setBackgroundColor(Color.WHITE);
}
private void getDatainList()
{
for(int i=0;i<10;i++)
{
ListModel li=new ListModel();
li.setOptionName(optionName[i]);
// li.setImage(image[i]);
li.setImageArrow(R.drawable.arrow);
mylist.add(li);
}
}
}
layout_tab_bar.java(This class displays the tab host and used in Main Activity)
<?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">
<RelativeLayout
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="wrap_content"
android:layout_alignParentBottom="true"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
</RelativeLayout>
</TabHost>
listview_layout.xml:
This file shows how the listview is added:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<!-- Header Starts -->
<RelativeLayout
android:id="@+id/header"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@android:color/white"
android:paddingBottom="5dp"
android:paddingTop="5dp" >
<!-- Logo Start -->
<ImageView
android:id="@+id/menuimage"
android:layout_width="wrap_content"
android:layout_height="15dp"
android:src="@drawable/menuicon_big" />
<TextView
android:id="@+id/txt_Home"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="22dp"
android:gravity="center"
android:text="HOME"
android:textColor="@android:color/black"
android:textSize="20sp" />
<View
android:layout_width="match_parent"
android:layout_height="1dp" />
</RelativeLayout>
<!-- Header Ends -->
<ImageView
android:id="@+id/stbernard"
android:layout_width="match_parent"
android:layout_height="60dp"
android:scaleType="fitXY"
android:src="@drawable/stbernard" />
<!-- <ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.01"
android:divider="@android:color/transparent"
android:dividerHeight="10.0sp" >
</ListView> -->
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</ListView>
</LinearLayout>
single_row.xml:
This file shows how the content inside listview appears for each item
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/rel">
<ImageView
android:id="@+id/imageviewArr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="21dp"
android:src="@drawable/arrow"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" />
<View android:id="@+id/testView"
android:layout_height="1dp"
android:layout_width="match_parent"
android:background="@android:color/black"
/>
<TextView
android:id="@+id/txt_Options"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:gravity="center"
android:text="text1"
android:textColor="@android:color/black"
android:textSize="20sp"
android:paddingLeft="2dp" />
</RelativeLayout>
謝謝問題解決 – 2014-09-22 06:03:47