在android中的自定義選項卡 - 使用「setIndicator」時出現錯誤

Question

我想在我的android應用程序中創建一個自定義選項卡，並且我得到了一些示例代碼，但該代碼在setIndicator方法中顯示錯誤...這是我的代碼

錯誤我得到的 - 在類型TabHost.TabSpec方法setIndicator(CharSequence)是不適用的參數（的TextView）

package com.myapp; 

import android.app.Activity; 
import android.graphics.Color; 
import android.os.Bundle; 
import android.view.Gravity; 
import android.view.View; 
import android.widget.FrameLayout; 
import android.widget.LinearLayout; 
import android.widget.TabHost; 
import android.widget.TabWidget; 
import android.widget.TextView; 
import android.widget.LinearLayout.LayoutParams; 
import android.widget.TabHost.TabContentFactory; 
import android.widget.TabHost.TabSpec; 

//Custom Tabs 
public class MyActivity extends Activity { 

int tabHeight = 40; 

@Override 
public void onCreate(Bundle savedInstanceState) { 

super.onCreate(savedInstanceState); 
LinearLayout main = new LinearLayout(this); 
main.setOrientation(LinearLayout.VERTICAL); 
setContentView(main); 

TabHost tabs = new TabHost(this); 
tabs.setId(android.R.id.tabhost); 
main.addView(tabs); 

TabWidget tabWidget = new TabWidget(this); 
tabWidget.setId(android.R.id.tabs); 
tabs.addView(tabWidget); 

FrameLayout tabContent = new FrameLayout(this); 
tabContent.setId(android.R.id.tabcontent); 
tabContent.setPadding(0, tabHeight, 0, 0); 
tabs.addView(tabContent); 

TextView content = new TextView(this); 
content.setText("This is the Frame Content"); 
content.setId(100); 
tabs.setup(); 

TabSpec tspec1 = tabs.newTabSpec("Tab1"); 
tspec1.setIndicator(makeTabIndicator("One")); 
tspec1.setContent(new PreExistingViewFactory(content)); 
tabs.addTab(tspec1); 

TabSpec tspec2 = tabs.newTabSpec("Tab2"); 
tspec2.setIndicator(makeTabIndicator("Two")); 
tspec2.setContent(new PreExistingViewFactory(content)); 
tabs.addTab(tspec2); 

TabSpec tspec3 = tabs.newTabSpec("Tab3"); 
tspec3.setIndicator(makeTabIndicator("Three")); 
tspec3.setContent(new PreExistingViewFactory(content)); 
tabs.addTab(tspec3); 

} 

private TextView makeTabIndicator(String text){ 

TextView tabView = new TextView(this); 
LayoutParams lp3 = new LayoutParams(LayoutParams.WRAP_CONTENT, tabHeight, 1); 
lp3.setMargins(1, 0, 1, 0); 
tabView.setLayoutParams(lp3); 
tabView.setText(text); 
tabView.setTextColor(Color.WHITE); 
tabView.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL); 
tabView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_indicator)); 
tabView.setPadding(13, 0, 13, 0); 
return tabView; 

} 



class PreExistingViewFactory implements TabContentFactory{ 

private final View preExisting; 
protected PreExistingViewFactory(View view){ 
preExisting = view; 
} 

public View createTabContent(String tag) { 
return preExisting; 
} 

} 

} 

有人請幫我解決這個問題...

提前感謝名單.. 克里斯

Answer 1

不幸的是，方法setIndicator（查看視圖）僅適用於安卓1.6及更高版本（版本4）。如果您支持Android 1.5（版本3），則只能使用String/CharSequence作爲使用setIndicator（CharSequence標籤）的指示器。

見參考：http://developer.android.com/reference/android/widget/TabHost.TabSpec.html#setIndicator

注意，這個方法setIndicator（查看視圖）是 「自：API級別4」

Answer 2

使用的標籤android系統中

Java文件

public class Main extends TabActivity { 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     setContentView(R.layout.main1); 

     TabHost tabHost = getTabHost(); // The activity TabHost 
     TabHost.TabSpec spec; // Reusable TabSpec for each tab 
     Intent intent; // Reusable Intent for each tab 

     // Create an Intent to launch an Activity for the Movies tab. 
     intent = new Intent().setClass(this, BarActivity.class); 
     // Initialise a TabSpec for the Movies tab and add it to the TabHost. 
     spec = tabHost.newTabSpec("Nights").setIndicator("Nights").setContent(intent); 
     tabHost.addTab(spec); 

     // Do the same things for the Theatres tab. 
     intent = new Intent().setClass(this, BarActivity.class); 
     spec = tabHost.newTabSpec("Weeks").setIndicator("Weeks").setContent(intent); 
     tabHost.addTab(spec); 

     intent = new Intent().setClass(this, BarActivity.class); 
     spec = tabHost.newTabSpec("Months").setIndicator("Months").setContent(intent); 
     tabHost.addTab(spec); 
     getTabHost().getTabWidget().getChildAt(0).setLayoutParams(new 
       LinearLayout.LayoutParams(100,50)); 
     getTabHost().getTabWidget().getChildAt(1).setLayoutParams(new 
       LinearLayout.LayoutParams(100,50)); 
     getTabHost().getTabWidget().getChildAt(2).setLayoutParams(new 
       LinearLayout.LayoutParams(100,50)); 
     tabHost.setCurrentTab(0); 
    } 
} 

下面的代碼和main1.xml

<?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"> 
    <TabWidget android:id="@android:id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content" /> 
    <FrameLayout android:id="@android:id/tabcontent" android:layout_width="fill_parent" android:layout_height="fill_parent"> 
    </FrameLayout> 
</LinearLayout> 
</TabHost> 

Answer 3

我發現這個教程很不錯：

http://kpbird.blogspot.com/2011/05/androidbottom-tabbar-control.html