系出名门Android(7) - 控件(View)之ZoomControls, Include, VideoView, WebView, RatingBar, Tab

<? 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/缩小按钮控件 
        -->  
         < ZoomControls   android:id ="@+id/zoomControls"  
                 android:layout_width ="wrap_content"   android:layout_height ="wrap_content" > </ ZoomControls >  

</ LinearLayout >

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() - 响应单击放大按钮的事件 
                zoomControls.setOnZoomInClickListener( new  OnClickListener() {  
                         public   void  onClick(View v) {  
                                Toast.makeText(_ZoomControls. this,   "单击了放大按钮", Toast.LENGTH_SHORT).show();  
                        }  
                });  
                  
                 // setOnZoomOutClickListener() - 响应单击缩小按钮的事件 
                zoomControls.setOnZoomOutClickListener( new  OnClickListener() {  
                         public   void  onClick(View v) {  
                                Toast.makeText(_ZoomControls. this,   "单击了缩小按钮", Toast.LENGTH_SHORT).show();          
                        }  
                });  

        }  
}

<? 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" >  

        <!--  
                include - 整合控件，将指定的 layout 整合进来 
                        layout - 指定需要整合 layout 
        -->  
         < include   android:id ="@+id/cell1"   layout ="@layout/include_1"   />  
         < include   android:id ="@+id/cell2"   android:layout_width ="fill_parent"   layout ="@layout/include_2"   />  

</ LinearLayout >

<? xml   version ="1.0"   encoding ="utf-8" ?>  
< TextView   xmlns:android ="http://schemas.android.com/apk/res/android"  
         android:text ="TextView01"   android:layout_width ="wrap_content"  
         android:layout_height ="wrap_content" >  
</ TextView >

<? xml   version ="1.0"   encoding ="utf-8" ?>  
< TextView   xmlns:android ="http://schemas.android.com/apk/res/android"  
         android:text ="TextView02"   android:layout_width ="wrap_content"  
         android:layout_height ="wrap_content" >  
</ TextView >

package  com.webabcd.view;  

import  android.app.Activity;  
import  android.os.Bundle;  

public   class  _Include   extends  Activity {  

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

                setTitle( "Include");  
        }  
}

<? 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" >  

        <!--  
                VideoView - 视频播放控件 
        -->  
         < VideoView   android:id ="@+id/videoView"   android:layout_width ="wrap_content"  
                 android:layout_height ="wrap_content" >  
         </ VideoView >  
                  
</ LinearLayout >

package  com.webabcd.view;  

import  android.app.Activity;  
import  android.net.Uri;  
import  android.os.Bundle;  
import  android.widget.MediaController;  
import  android.widget.VideoView;  

public   class  _VideoView   extends  Activity {  

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

                setTitle( "VideoView");  
                  
                VideoView videoView = (VideoView) findViewById(R.id.videoView);  
                  
                 // 指定需要播放的视频的地址 
                videoView.setVideoURI(Uri.parse( "android.resource://com.webabcd.view/" + R.raw.demo)); 
                // videoView.setVideoPath(); 
                    
                // 设置播放器的控制条 
                videoView.setMediaController(new MediaController(this)); 
                // 开始播放视频 
                videoView.start(); 
        } 
}

<? 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" >  

        <!--  
                WebView - 浏览器控件（WebKit 内核） 
        -->  
         < WebView   android:layout_width ="fill_parent"  
                 android:layout_height ="wrap_content"   android:id ="@+id/webView"   />  
                  
</ LinearLayout >

package  com.webabcd.view;  

import  android.app.Activity;  
import  android.os.Bundle;  
import  android.webkit.WebSettings;  
import  android.webkit.WebView;  

public   class  _WebView   extends  Activity {  

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

                setTitle( "WebView");  
                  
                WebView webView = (WebView) findViewById(R.id.webView);  

                 // 配置浏览器，使其可支持 JavaScript 
                WebSettings webSettings = webView.getSettings();  
                webSettings.setJavaScriptEnabled( true);  
                  
                 // 清除浏览器缓存 
                webView.clearCache( true);  
                 // 指定浏览器需要解析的 url 地址 
                webView.loadUrl( "http://webabcd.cnblogs.com/"); 
                // 指定浏览器需要解析的 html 数据 
                // webView.loadData("<a href='http://webabcd.cnblogs.com/'>webabcd</a>", "text/html", "utf-8"); 
        } 
}

<? 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" >  

        <!--  
                RatingBar - 评分控件 
                        numStars - 评分控件的星星的数量 
                        rating - 当前评分的值         
        -->  
         < RatingBar   android:id ="@+id/ratingBar"   android:numStars ="5"  
                 android:rating ="1.5"   android:layout_width ="wrap_content"  
                 android:layout_height ="wrap_content" >  
         </ RatingBar >  

         < TextView   android:id ="@+id/textView"   android:layout_width ="wrap_content"  
                 android:layout_height ="wrap_content"   />  

</ LinearLayout >

package  com.webabcd.view;  

import  android.app.Activity;  
import  android.os.Bundle;  
import  android.widget.RatingBar;  
import  android.widget.TextView;  

public   class  _RatingBar   extends  Activity   implements  RatingBar.OnRatingBarChangeListener {  

         private  RatingBar mRatingBar;  
         private  TextView mTextView;  

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

                setTitle( "RatingBar");  

                mTextView = (TextView) findViewById(R.id.textView);  
                mRatingBar = (RatingBar) findViewById(R.id.ratingBar);  

                 // setOnRatingBarChangeListener() - 响应评分值发生改变的事件 
                mRatingBar.setOnRatingBarChangeListener( this);  
        }  

        @Override  
         public   void  onRatingChanged(RatingBar ratingBar,   float  rating,  
                         boolean  fromUser) {  
                mTextView.setText(String.valueOf(rating));  
        }  
}

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

        <!--  Tab 1 的内容　-->  
         < TextView   android:id ="@+id/view1"   android:layout_width ="fill_parent"  
                 android:layout_height ="fill_parent"   android:text ="tab1 content"   />  
                  
        <!--  Tab 2 的内容 -->  
         < TextView   android:id ="@+id/view2"   android:layout_width ="fill_parent"  
                 android:layout_height ="fill_parent"   android:text ="tab2 content"   />  

</ FrameLayout >

package  com.webabcd.view;  

import  android.app.TabActivity;  
import  android.content.Intent;  
import  android.os.Bundle;  
import  android.view.LayoutInflater;  
import  android.widget.TabHost;  

// 实现 Tab 功能的话要继承 TabActivity 
public   class  _Tab   extends  TabActivity {  

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

                TabHost tabHost = getTabHost();  
                LayoutInflater.from( this).inflate(R.layout.tab, tabHost.getTabContentView(),   true);  

                 // Tab 1 的内容 
                tabHost.addTab(tabHost.newTabSpec( "tab1")  
                                .setIndicator( "tab1")  
                                .setContent(R.id.view1));  
                  
                 // Tab 2 的内容（设置了 Tab 图片） 
                tabHost.addTab(tabHost.newTabSpec( "tab2")  
                                .setIndicator( "tab2", getResources().getDrawable(R.drawable.icon01))  
                                .setContent(R.id.view2));  
                  
                 // Tab 3 的内容（设置 Tab 的内容为指定的 Activity） 
                tabHost.addTab(tabHost.newTabSpec( "tab3")  
                                .setIndicator( "tab3")  
                                .setContent( new  Intent( this, _TextView. class)));  

        }  
}

<? 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" >  

         < TextView   android:layout_width ="fill_parent"  
                 android:layout_height ="wrap_content"   android:id ="@+id/textView"   />  

        <!--  
                Spinner - 下拉框控件 
        -->                  
         < Spinner   android:id ="@+id/spinner"   android:layout_width ="fill_parent"  
                 android:layout_height ="wrap_content"   />  

</ LinearLayout >

package  com.webabcd.view;  

import  android.app.Activity;  
import  android.os.Bundle;  
import  android.view.View;  
import  android.widget.AdapterView;  
import  android.widget.ArrayAdapter;  
import  android.widget.Spinner;  
import  android.widget.TextView;  

public   class  _Spinner   extends  Activity {  

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

                setTitle( "Spinner");  

                Spinner spinner = (Spinner) findViewById(R.id.spinner);  
                  
                 // 设置下拉框控件的标题文本 
                spinner.setPrompt( "请选择");  
                 // 实例化适配器，指定显示格式及数据源 
                ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(  
                                 this, R.array.colors, android.R.layout.simple_spinner_item);  
                adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);  
                spinner.setAdapter(adapter);  

                 // setOnItemSelectedListener() - 响应下拉框的选中值发生变化的事件 
                spinner.setOnItemSelectedListener( new  AdapterView.OnItemSelectedListener() {  
                        @Override  
                         public   void  onItemSelected(AdapterView<?> arg0, View arg1,  
                                         int  arg2,   long  arg3) {  
                                TextView textView = (TextView)_Spinner. this.findViewById(R.id.textView);  
                                textView.setText(((TextView)arg1).getText());  
                        }  

                        @Override  
                         public   void  onNothingSelected(AdapterView<?> arg0) {  
                                                                  
                        }  
                });  
        }  
}

<? 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" >  

        <!--  
                Chronometer - 计时器控件 
        -->  
         < Chronometer   android:id ="@+id/chronometer"  
                 android:layout_width ="wrap_content"   android:layout_height ="wrap_content"   />  

         < Button   android:id ="@+id/btnStart"   android:layout_width ="wrap_content"  
                 android:layout_height ="wrap_content"   android:text ="开始计时" >  
                 < requestFocus   />  
         </ Button >  

         < Button   android:id ="@+id/btnStop"   android:layout_width ="wrap_content"  
                 android:layout_height ="wrap_content"   android:text ="停止计时" >  
         </ Button >  

         < Button   android:id ="@+id/btnReset"   android:layout_width ="wrap_content"  
                 android:layout_height ="wrap_content"   android:text ="计时器复位" >  
         </ Button >  

</ LinearLayout >

package  com.webabcd.view;  

import  android.app.Activity;  
import  android.os.Bundle;  
import  android.os.SystemClock;  
import  android.view.View;  
import  android.view.View.OnClickListener;  
import  android.widget.Button;  
import  android.widget.Chronometer;  

public   class  _Chronometer   extends  Activity {  

         private  Chronometer mChronometer;  

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

                setTitle( "Chronometer");  

                Button button;  

                mChronometer = (Chronometer) findViewById(R.id.chronometer);  
                 // 设置计时器所显示的时间格式 
                mChronometer.setFormat( "计时：(%s)");  
                  
                button = (Button) findViewById(R.id.btnStart);  
                button.setOnClickListener(mStartListener);  

                button = (Button) findViewById(R.id.btnStop);  
                button.setOnClickListener(mStopListener);  

                button = (Button) findViewById(R.id.btnReset);  
                button.setOnClickListener(mResetListener);  
        }  

        View.OnClickListener mStartListener =   new  OnClickListener() {  
                 public   void  onClick(View v) {  
                         // 启动计时器 
                        mChronometer.start();  
                }  
        };  

        View.OnClickListener mStopListener =   new  OnClickListener() {  
                 public   void  onClick(View v) {  
                         // 暂停计时器 
                        mChronometer.stop();  
                }  
        };  

        View.OnClickListener mResetListener =   new  OnClickListener() {  
                 public   void  onClick(View v) {  
                         // 复位计时器，即停止计时器 
                        mChronometer.setBase(SystemClock.elapsedRealtime());  
                }  
        };  
}

<? 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" >  

        <!--  
                ScrollView - 滚动条控件 
                        scrollbarStyle - 滚动条的样式 
        -->  
         < ScrollView   android:id ="@+id/scrollView"  
                 android:layout_width ="fill_parent"   android:layout_height ="200px"  
                 android:scrollbarStyle ="outsideOverlay"   android:background ="@android:drawable/edit_text" >  
                 < TextView   android:layout_width ="fill_parent"  
                         android:layout_height ="wrap_content"   android:id ="@+id/textView"   />  
         </ ScrollView >  

</ LinearLayout >

package  com.webabcd.view;  

import  android.app.Activity;  
import  android.os.Bundle;  
import  android.widget.TextView;  

public   class  _ScrollView   extends  Activity {  

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

                setTitle( "ScrollView");  

                TextView textView = (TextView) this.findViewById(R.id.textView);  
                textView.setText( "a\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na\na");  
        }  
}