Android TabHost的标签放在底部,已写成框架,继承即可

长平狐 发布于 2012/08/21 16:20
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网上已经有很多关于如何将TabHost的标签放在底部,这里就不说了

主要是把这些都做成框架,只需要提供图片和文字就可以实现这样的效果。

直接上图,代码解释的很清楚

程序的图片借用新浪微博.

 

使用代码:

package com.api.example.app; import java.util.ArrayList; import java.util.List; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.widget.TabWidget; import android.widget.TextView; import com.api.R; import com.api.TabHostActivity; /** * 整个流程就像使用ListView自定BaseAdapter一样 * * 如果要自定义TabHostActivity的Theme,并且不想要头部阴影* 一定要添加这个android:windowContentOverlay = null * * 如果想在别的项目里面使用TabHostActivity* 可以项目的属性里面找到Android,然后在Library部分添加这个项目(Api)* <a href='\" http://www.cnblogs.com/qianxudetianxia/archive/2011/05/01/2030232.html \"' target='\"_blank\"'>如何添加</a> * */ public class ExampleActivity extends TabHostActivity { List mItems; private LayoutInflater mLayoutInflater; /** 在初始化TabWidget前调用* 和TabWidget有关的必须在这里初始化 */ @Override protected void pare() { TabItem home = new TabItem( "首页", // title R.drawable.icon_home, // icon R.drawable.example_tab_item_bg, // background new Intent( this, Tab1Activity. class)); // intent TabItem info = new TabItem( "资料" , R.drawable.icon_selfinfo, R.drawable.example_tab_item_bg, new Intent( this, Tab2Activity. class )); TabItem msg = new TabItem( "信息" , R.drawable.icon_meassage, R.drawable.example_tab_item_bg, new Intent( this, Tab3Activity. class )); TabItem square = new TabItem( "广场" , R.drawable.icon_square, R.drawable.example_tab_item_bg, new Intent( this, Tab4Activity. class )); TabItem more = new TabItem( "更多" , R.drawable.icon_more, R.drawable.example_tab_item_bg, new Intent( this, Tab5Activity. class )); mItems = new ArrayList(); mItems.add(home); mItems.add(info); mItems.add(msg); mItems.add(square); mItems.add(more); // 设置分割线 TabWidget tabWidget = getTabWidget(); tabWidget.setDividerDrawable(R.drawable.tab_divider); mLayoutInflater = getLayoutInflater(); } @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setCurrentTab(0 ); } /** tab的title,icon,边距设定等等 */ @Override protected void setTabItemTextView(TextView textView, int position) { textView.setPadding(3, 3, 3, 3 ); textView.setText(mItems.get(position).getTitle()); textView.setBackgroundResource(mItems.get(position).getBg()); textView.setCompoundDrawablesWithIntrinsicBounds(0, mItems.get(position).getIcon(), 0, 0 ); } /** tab唯一的id */ @Override protected String getTabItemId( int position) { return mItems.get(position).getTitle(); // 我们使用title来作为id,你也可以自定 } /** 点击tab时触发的事件 */ @Override protected Intent getTabItemIntent( int position) { return mItems.get(position).getIntent(); } @Override protected int getTabItemCount() { return mItems.size(); } /** 自定义头部文件 */ @Override protected View getTop() { return mLayoutInflater.inflate(R.layout.example_top, null ); } }

框架代码:

package com.api; import android.app.TabActivity; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.widget.LinearLayout; import android.widget.TabHost; import android.widget.TabHost.TabSpec; import android.widget.TabWidget; import android.widget.TextView; public abstract class TabHostActivity extends TabActivity { private TabHost mTabHost; private TabWidget mTabWidget; private LayoutInflater mLayoutflater; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); // set theme because we do not want the shadow setTheme(R.style.Theme_Tabhost); setContentView(R.layout.api_tab_host); mLayoutflater = getLayoutInflater(); mTabHost = getTabHost(); mTabWidget = getTabWidget(); // mTabWidget.setStripEnabled(false); // need android2.2 pare(); initTop();initTabSpec();} private void initTop() {View child = getTop();LinearLayout layout = (LinearLayout) findViewById(R.id.tab_top);layout.addView(child);} private void initTabSpec() { int count = getTabItemCount(); for ( int i = 0; i < count; i++ ) { // set text viewView tabItem = mLayoutflater.inflate(R.layout.api_tab_item, null ); TextView tvTabItem = (TextView) tabItem.findViewById(R.id.tab_item_tv);setTabItemTextView(tvTabItem, i); // set idString tabItemId = getTabItemId(i); // set tab specTabSpec tabSpec = mTabHost.newTabSpec(tabItemId);tabSpec.setIndicator(tabItem);tabSpec.setContent(getTabItemIntent(i)); mTabHost.addTab(tabSpec);} } /** 在初始化界面之前调用 */ protected void pare() { // do nothing or you override it } /** 自定义头部布局 */ protected View getTop() { // do nothing or you override it return null ; } protected int getTabCount() { return mTabHost.getTabWidget().getTabCount(); } /** 设置TabItem的图标和标题等 */ abstract protected void setTabItemTextView(TextView textView, int position); abstract protected String getTabItemId( int position); abstract protected Intent getTabItemIntent( int position); abstract protected int getTabItemCount(); protected void setCurrentTab( int index) { mTabHost.setCurrentTab(index); } protected void focusCurrentTab( int index) { mTabWidget.focusCurrentTab(index); } }


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原文链接:http://www.cnblogs.com/vus520/archive/2012/08/21/2648994.html
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wiket
wiket
很不错嘛  之前有这个想法但是没实现
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