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锁定老帖子 主题：TabActivity 使用
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发表时间：2010-01-26
TabActivity
[功能] 一个TabActivity 包含 数个标签
[代码 步骤] 1. 得到 TabHost 的实例 TabHost host = this.getTabHost();
2. 定义 CustomTabs 用于填充 TabHost 各个标签布局用 写道
其必须包含 public View createTabContent(String tag) 定义
public class CustomTabs implements TabHost.TabContentFactory {
Activity activity;
LayoutInflater inflater;
LinearLayout layout;
public CustomTabs (Activity a) {
activity = a;
inflater = activity.getLayoutInflater();
}
/** {@inheritDoc} */
public View createTabContent(String tag) {
activity.setTitle(tag);
return addCustomView(tag);
}
public View addCustomView(String id){
layout = new LinearLayout(activity);
layout.setOrientation(LinearLayout.VERTICAL);
if(id.equals(TAB1)){
ImageView iv = new ImageView(activity);
iv.setImageResource(R.drawable.o);
layout.addView(iv,
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT));
}
else if(id.equals(TAB2)){
EditText edit = new EditText(activity);
layout.addView(edit,
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
Button btn = new Button(activity);
btn.setText("OK");
layout.addView(btn,
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
RadioGroup group = new RadioGroup(activity);
group.setOrientation(LinearLayout.HORIZONTAL);
RadioButton radio1 = new RadioButton(activity);
radio1.setText("Radio 1");
group.addView(radio1);
RadioButton radio2 = new RadioButton(activity);
radio2.setText("Radio 2");
group.addView(radio2);
layout.addView(group,
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
}
else if(id.equals(TAB3)){
LinearLayout.LayoutParams param3 =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT);
layout.addView(inflater.inflate(R.layout.item_3, null),param3);
}
else if(id.equals(TAB4)){
LinearLayout.LayoutParams param4 =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT);
layout.addView(inflater.inflate(R.layout.item_4, null),param4);
}
else {
TextView tv5 = new TextView(activity);
tv5.setText("no resource aviable!");
tv5.setGravity(1);
layout.addView(tv5,
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT));
}
return layout;
}
}
3. 使用 CustomTabs host.addTab(host.newTabSpec(TAB1)
.setIndicator("Tab 1", getResources().getDrawable(R.drawable.beijing_001_mb5ucom))
.setContent(item));
4. 标签变化的监听函数 host.setOnTabChangedListener(new OnTabChangeListener(){
@Override
public void onTabChanged(String tabId) {
// TODO Auto-generated method stub
}
});
5. emulator 运行截图： * 标签1
* 标签2
* 标签3
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发表时间：2010-11-06
谢谢，最近在学android，这个实例不错
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