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Android TabHost(标签)应用举例
为TabHost的运行结果:在一个Activity里面显示不同的标签里的内容。图在最后代码如下:AppMain.java
package
com.lxy;
import
Android.app.TabActivity;
import
android.content.Intent;
import
android.os.Bundle;
import
android.view.View;
import
android.view.View.OnClickListener;
import
android.widget.Button;
import
android.widget.TabHost;
public
class
AppMain
extends
TabActivity {
private
TabHost myTabHost;
private
Button bt01;
private
Button bt02;
private
Button bt03;
private
Intent it01;
private
Intent it02;
private
Intent it03;
public
void
onCreate(Bundle savedInstanceState) {
super
.onCreate(savedInstanceState);
setContentView(R.layout.main);
initWidget();
initIntent();
}
private
void
initWidget(){
bt01 = (Button)findViewById(R.id.tab_ib_service);
bt02 = (Button)findViewById(R.id.tab_ib_history);
bt03 = (Button)findViewById(R.id.tab_ib_eixt);
bt01.setOnClickListener(
new
ButtonListener());
bt02.setOnClickListener(
new
ButtonListener());
bt03.setOnClickListener(
new
ButtonListener());
it01 =
new
Intent(
this
,Test01.
class
);
it02 =
new
Intent(
this
,Test02.
class
);
it03 =
new
Intent(
this
,Test03.
class
);
}
class
ButtonListener
implements
OnClickListener{
public
void
onClick(View v) {
if
(v.getId() == R.id.tab_ib_service){
myTabHost.setCurrentTabByTag(
"t1"
);
}
else
if
(v.getId() == R.id.tab_ib_history){
myTabHost.setCurrentTabByTag(
"t2"
);
}
else
if
(v.getId() == R.id.tab_ib_eixt){
myTabHost.setCurrentTabByTag(
"t3"
);
}
}
}
private
void
initIntent(){
this
.myTabHost = getTabHost();
TabHost localTabHost =
this
.myTabHost;
// newTabSpec() ---> Get a new TabHost.TabSpec associated with this tab host.
// setIndicator() ---> Specify a label and icon as the tab indicator.
// setContent() ---> Specify an intent to use to launch an activity as the tab content.
localTabHost.addTab(
myTabHost.newTabSpec(
"t1"
)
.setIndicator(
"LIU"
, getResources().getDrawable(R.drawable.icon))
.setContent(it01));
localTabHost.addTab(
myTabHost.newTabSpec(
"t2"
)
.setIndicator(
"ZHEN"
, getResources().getDrawable(R.drawable.icon))
.setContent(it02));
localTabHost.addTab(
myTabHost.newTabSpec(
"t3"
)
.setIndicator(
"WEI"
, getResources().getDrawable(R.drawable.icon))
.setContent(it03));
}
}
main.xml
<?xml
version
=
"1.0"
encoding
=
"utf-8"
?>
<TabHost
android:id
=
"@android:id/tabhost"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
xmlns:android
=
"http://schemas.android.com/apk/res/android"
>
<LinearLayout
android:orientation
=
"vertical"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
>
<FrameLayout
android:id
=
"@android:id/tabcontent"
android:layout_width
=
"fill_parent"
android:layout_height
=
"1.0dip"
android:layout_weight
=
"1.0"
>
</FrameLayout>
<TabWidget
android:id
=
"@android:id/tabs"
android:visibility
=
"gone"
android:layout_width
=
"fill_parent"
android:layout_height
=
"wrap_content"
android:layout_weight
=
"1.0"
/>
<LinearLayout
android:orientation
=
"horizontal"
android:layout_width
=
"fill_parent"
android:layout_height
=
"70px"
>
<Button
android:id
=
"@+id/tab_ib_service"
android:layout_height
=
"70px"
android:layout_width
=
"fill_parent"
android:layout_weight
=
"1"
android:text
=
"Tab1"
android:scaleType
=
"fitXY"
>
</Button>
<Button
android:id
=
"@+id/tab_ib_history"
android:layout_height
=
"70px"
android:layout_width
=
"fill_parent"
android:layout_weight
=
"1"
android:text
=
"Tab2"
android:scaleType
=
"fitXY"
></Button>
<Button
android:id
=
"@+id/tab_ib_eixt"
android:layout_height
=
"70px"
android:layout_width
=
"fill_parent"
android:layout_weight
=
"1"
android:text
=
"Tab3"
android:scaleType
=
"fitXY"
>
</Button></LinearLayout>
</LinearLayout>
</TabHost>
Text01.java
package
com.lxy;
import
android.app.Activity;
import
android.os.Bundle;
public
class
Test01
extends
Activity{
protected
void
onCreate(Bundle savedInstanceState) {
super
.onCreate(savedInstanceState);
setContentView(R.layout.test01);
}
}
test01.xml
<?xml
version
=
"1.0"
encoding
=
"utf-8"
?>
<LinearLayout
xmlns:android
=
"http://schemas.android.com/apk/res/android"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
android:orientation
=
"vertical"
>
<TextView
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
android:background
=
"#FF0000FF"
android:text
=
"TEST01"
></TextView>
</LinearLayout>
Text02.java, Text03.java与Text.01.java 基本一样,只是加载自己对应的布局文件 而布局文件text02.xml, text03.xml与text01.xml基本一样,只是文本中显示的内容不同,背景颜色不同(当然也可以相同)。
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