Android剪贴板用法详解

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:
 

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.cainiaojc.com

             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:
 

 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:
 

 <?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。