广

android开发

  • IOS开发
  • android开发
  • PHP编程
  • JavaScript
  • ASP.NET
  • ASP编程
  • JSP编程
  • Java编程
  • 易语言
  • Ruby编程
  • Perl编程
  • AJAX
  • 正则表达式
  • C语言
  • 编程开发

    Android剪贴板用法详解

    2018-04-25 21:45:58 次阅读 稿源:互联网
    广告

    本文实例详述了Android剪贴板的用法,分享给大家供大家参考。具体方法分析如下:

    这里首先需要注意的一点,就是在使用Android剪贴板的时候大家只记住一点就行了,不管是安卓设备还是PC机,复制粘贴在同一时间里只能用于一个对象上,整通俗点就是:PC机上,不可能同时从C盘复制,又从D盘复制就行了,具体的看代码,很简单,直接上代码:
     
    代码如下:
    package com.xiaoma.clipboard.demo;
     
     import android.app.Activity;
     import android.content.ClipData;
     import android.content.ClipData.Item;
     import android.content.ClipDescription;
     import android.content.ClipboardManager;
     import android.content.ContentResolver;
     import android.content.Intent;
     import android.database.Cursor;
     import android.net.Uri;
     import android.os.Bundle;
     import android.view.View;
     import android.view.View.OnClickListener;
     import android.widget.Button;
     import android.widget.Toast;
     
     /** 
     * @Title: ClipBoardDemoActivity.java
     * @Package com.xiaoma.clipboard.demo
     * @Description: 剪贴板学习
     * @author MZH
     */
     public class ClipBoardDemoActivity extends Activity implements OnClickListener{
        
         private Button put = null;
         private Button get = null;
         private ClipboardManager clipboard = null;
         private static final String CONTACTS = "content://com.example.contacts";
         private String COPY_PATH = "/copy";
         public static final String MIME_TYPE_CONTACT = "vnd.android.cursor.item/vnd.xiaoma.contact";
         @Override
         public void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);
             setContentView(R.layout.main);
             init();
         }
        
         /**
          * 初始化方法实现
          */
         private void init(){
             put = (Button)findViewById(R.id.button1);
             put.setOnClickListener(this);
            
             get = (Button)findViewById(R.id.button2);
             get.setOnClickListener(this);
         }
        
         /**
          * 监听实现
          */
         @Override
         public void onClick(View v) {
             switch (v.getId()) {
             case R.id.button1:
                 put();
                 break;
             case R.id.button2:
                 get();
                 break;
             default:
                 break;
             }
         }
        
         /**
          * 往Clip中放入数据
          */
         private void put(){
            
             /**
              * 往ClipboardManager中可放的数据类型有三种:
              * 因为大家都知道,就算是电脑,Ctrl+c也不可能在同一时间里即
              * 从C盘剪贴,又从D般剪贴,所以小马只写一种简单的信息进去,
              * 另外两种写在注释中
            
             //类型一:text
             clipboard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
             ClipData textCd = ClipData.newPlainText("kkk", "WaHouHou!Clip....");
             clipboard.setPrimaryClip(textCd);
              */
             /**
              *
             //类型二:URI
             Uri copyUri = Uri.parse(CONTACTS + COPY_PATH + "/" + "XiaoMa");
             ClipData clipUri = ClipData.newUri(getContentResolver(),"URI",copyUri);
             clipboard.setPrimaryClip(clipUri);
             *
             */
             //类型三:Intent
             //试下在Intent剪贴时使用Bundle传值进去
             clipboard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
             Intent appIntent = new Intent();
             Bundle bundle = new Bundle();
             bundle.putInt("xiaoma", 3344258);
             bundle.putInt("yatou", 3344179);
             appIntent.putExtra("XiaoMaGuo", bundle);
             appIntent.setClass(ClipBoardDemoActivity.this, ReceiverClip.class);
             ClipData clipIntent = ClipData.newIntent("Intent",appIntent);
             clipboard.setPrimaryClip(clipIntent);
         }
        
         /**
          * 从Clip中取数据
          */
         private void get(){
             clipboard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
             Item item = null;
            
             //无数据时直接返回
             if(!clipboard.hasPrimaryClip()){
                 Toast.makeText(getApplicationContext(), "剪贴板中无数据", Toast.LENGTH_SHORT).show();
                 return ;
             }
            
             //如果是文本信息
             if (clipboard.getPrimaryClipDescription().hasMimeType(
                     ClipDescription.MIMETYPE_TEXT_PLAIN)) {
                 ClipData cdText = clipboard.getPrimaryClip();
                 item = cdText.getItemAt(0);
                 //此处是TEXT文本信息
                 if(item.getText() == null){
                     Toast.makeText(getApplicationContext(), "剪贴板中无内容", Toast.LENGTH_SHORT).show();
                     return ;
                 }else{
                     Toast.makeText(getApplicationContext(), item.getText(), Toast.LENGTH_SHORT).show();
                 }
     
             //如果是INTENT
             } else if (clipboard.getPrimaryClipDescription().hasMimeType(
                     ClipDescription.MIMETYPE_TEXT_INTENT)) {
                 //此处是INTENT
                 item = clipboard.getPrimaryClip().getItemAt(0);
                 Intent intent = item.getIntent();
                 startActivity(intent);
                 //........
            
             //如果是URI
             } else if (clipboard.getPrimaryClipDescription().hasMimeType(
                     ClipDescription.MIMETYPE_TEXT_URILIST)) {
                 //此处是URI内容www.jb51.net
                 ContentResolver cr = getContentResolver();
                 ClipData cdUri = clipboard.getPrimaryClip();
                 item = cdUri.getItemAt(0);
                 Uri uri = item.getUri();
                 if(uri != null){
                     String mimeType = cr.getType(uri);
                     if (mimeType != null) {
                         if (mimeType.equals(MIME_TYPE_CONTACT)) {
                             Cursor pasteCursor = cr.query(uri, null, null, null, null);
                             if (pasteCursor != null) {
                                 if (pasteCursor.moveToFirst()) {
                                      //此处对数据进行操作就可以了,前提是有权限
                                 }
                             }
                             pasteCursor.close();
                          }
                      }
                 }
             }
         }
     }

    下面是用来接收Intent传递的值,临时的一个Activity,代码更简单:
     
    代码如下:
    package com.xiaoma.clipboard.demo;
     
     import android.app.Activity;
     import android.content.Intent;
     import android.os.Bundle;
     import android.view.TextureView;
     import android.widget.TextView;
     
     /**
      * @Title: ReceiverClip.java
      * @Package com.xiaoma.clipboard.demo
      * @Description:临时用来接收下从Clip传过来的Intent值
      * @author MZH
      */
     public class ReceiverClip extends Activity {
        
         private TextView tv1 ;
         private TextView tv2 ;
        
         @Override
         protected void onCreate(Bundle savedInstanceState) {
             // TODO Auto-generated method stub
             super.onCreate(savedInstanceState);
             setContentView(R.layout.main2);
             init();
         }
        
         private void init(){
            
             tv1 = (TextView)findViewById(R.id.xiaoma);
             tv2 = (TextView)findViewById(R.id.yatou);
            
             Intent intent = getIntent();
             Bundle b =intent.getBundleExtra("XiaoMaGuo");
             if(b != null){
                 int xiaoma = b.getInt("xiaoma");
                 int yatou = b.getInt("yatou");
                 if(!"".equals(String.valueOf(xiaoma)) && !"".equals(String.valueOf(yatou))){
                     tv1.setText(String.valueOf(xiaoma));
                     tv2.setText(String.valueOf(yatou));
                 }
             }
         }
     }

    全局配置文件里面没什么,如下:
     
    代码如下:
    <?xml version="1.0" encoding="utf-8"?>
     <manifest xmlns:android=""
         package="com.xiaoma.clipboard.demo"
         android:versionCode="1"
         android:versionName="1.0" >
     
         <uses-sdk android:minSdkVersion="14" />
     
         <application
             android:icon="@drawable/guoguo"
             android:label="@string/app_name" >
             <activity
                 android:name=".ClipBoardDemoActivity"
                 android:label="@string/app_name" >
                 <intent-filter>
                     <action android:name="android.intent.action.MAIN" />
     
                     <category android:name="android.intent.category.LAUNCHER" />
                 </intent-filter>
             </activity>
             <activity android:name=".ReceiverClip"></activity>
         </application>
     
     </manifest>

    希望本文所述对大家的Android程序设计有所帮助。

    一起学吧部分文章转载自互联网,供读者交流和学习,若有涉及作者版权等问题请及时与我们联系,以便更正、删除或按规定办理。感谢所有提供资讯的网站,欢迎各类媒体与一起学吧进行文章共享合作。

    广告
    广告
    广告