系出名門Android(7) - 控件(View)之ZoomControls,Include,VideoView……

系出名門Android(7) - 控件(View)之ZoomControls,Include,VideoView,WebView,RatingBar,Tab,Spinner,Chronometer,ScrollView

介紹

在 Android 中使用各種控件(View)

ZoomControls - 放大/縮小按鈕控件

Include - 整合控件

VideoView - 視頻播放控件

WebView - 浏覽器控件

RatingBar - 評分控件

Tab - 選項卡控件

Spinner - 下拉框控件

Chronometer - 計時器控件

ScrollView - 滾動條控件

1、ZoomControls 的 Demo

zoomcontrols.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <!--
        放大/縮小按鈕控件
    -->
    <ZoomControls android:id="@+id/zoomControls"
        android:layout_width="wrap_content" android:layout_height="wrap_content"></ZoomControls>

</LinearLayout>

_ZoomControls.java

package com.webabcd.view;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Toast;
import android.widget.ZoomControls;

public class _ZoomControls extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        //TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.zoomcontrols);

        setTitle("ZoomControls");

        ZoomControls zoomControls=(ZoomControls) this.findViewById(R.id.zoomControls);
        //setOnZoomInClickListener() - 響應單擊放大按鈕的事件
        zoomControls.setOnZoomInClickListener(new OnClickListener() {
            public void onClick(View v) {
                Toast.makeText(_ZoomControls.this, "單擊了放大按鈕", Toast.LENGTH_SHORT).show();
            }
        });

        //setOnZoomOutClickListener() - 響應單擊縮小按鈕的事件
        zoomControls.setOnZoomOutClickListener(new OnClickListener() {
            public void onClick(View v) {
                Toast.makeText(_ZoomControls.this, "單擊了縮小按鈕", Toast.LENGTH_SHORT).show();    
            }
        });

    }
}