Android开发教程之Android控件.ppt

Android开发教程之Android控件在Android中使用各种控件(View)

ZoomControls-放大/缩小按钮控件

Include-整合控件

VideoView-视频播放控件

WebView-浏览器控件

RatingBar-评分控件

Tab-选项卡控件

Spinner-下拉框控件

Chronometer-计时器控件

ScrollView-滚动条控件zoomcontrols.xml

viewplaincopytoclipboardprint?
01.<?xmlversion="1.0"encoding="utf-8"?>
02.<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
03.android:orientation="vertical"android:layout_width="fill_parent"
04.android:layout_height="fill_parent">
05.<!--
06.放大/缩小按钮控件
07.-->
08.<ZoomControlsandroid:id="@+id/zoomControls"09.android:layout_width="wrap_content"android:layout_height="wrap_content"></ZoomControls>
10.</LinearLayout>
<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!--
放大/缩小按钮控件
-->
<ZoomControlsandroid:id="@+id/zoomControls"
android:layout_width="wrap_content"android:layout_height="wrap_content"></ZoomControls>
</LinearLayout>_ZoomControls.java

viewplaincopytoclipboardprint?
01.packagecom.webabcd.view;
02.importandroid.app.Activity;
03.importandroid.os.Bundle;
04.importandroid.view.View;
05.importandroid.view.View.OnClickListener;
06.importandroid.widget.Toast;
07.importandroid.widget.ZoomControls;08.publicclass_ZoomControlsextendsActivity{
09.@Override
10.protectedvoidonCreate(BundlesavedInstanceState){
11.//TODOAuto-generatedmethodstub
12.super.onCreate(savedInstanceState);
13.this.setContentView(R.layout.zoomcontrols);
14.setTitle("ZoomControls");
15.ZoomControlszoomControls=(ZoomControls)this.findViewById(R.id.zoomControls);
16.//setOnZoomInClickListener()-响应单击放大按钮的事件17.zoomControls.setOnZoomInClickListener(newOnClickListener(){
18.publicvoidonClick(Viewv){
19.Toast.makeText(_ZoomControls.this,"单击了放大按钮",Toast.LENGTH_SHORT).show();
20.}
21.});
22.//setOnZoomOutClickListener()-响应单击缩小按钮的事件
23.zoomControls.setOnZoomOutClickListener(newOnClickListener(){
24.publicvoidonClick(Viewv){