android打开pdf ppt word excel chm html text 文件的intent

以下代码未经测试。但是有我想找的，先贴过来，慢慢了解～～ 

import android.app.Activity; 

import android.content.Intent; 

import android.net.Uri; 

import android.net.Uri.Builder; 

import java.io.File; 

import android.content.Intent; 

//自定义android Intent类， 

//可用于获取打开以下文件的intent 

//PDF,PPT,WORD,EXCEL,CHM,HTML,TEXT,AUDIO,VIDEO 

public class MyIntent 

{ 

//android获取一个用于打开HTML文件的intent 

  public static Intent getHtmlFileIntent( String param ) 

  { 

  Uri uri = Uri.parse(param ).buildUpon().encodedAuthority("com.android.htmlfileprovider").scheme("content").encodedPath(param ).build(); 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.setDataAndType(uri, "text/html"); 

  return intent; 

  } 

//android获取一个用于打开图片文件的intent 

  public static Intent getImageFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addCategory("android.intent.category.DEFAULT"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "image/*"); 

  return intent; 

  } 

  //android获取一个用于打开PDF文件的intent 

  public static Intent getPdfFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addCategory("android.intent.category.DEFAULT"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "application/pdf"); 

  return intent; 

  } 

//android获取一个用于打开文本文件的intent 

  public static Intent getTextFileIntent( String paramString, boolean paramBoolean) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addCategory("android.intent.category.DEFAULT"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

  if (paramBoolean) 

  { 

  Uri uri1 = Uri.parse(param ); 

  intent.setDataAndType(uri1, "text/plain"); 

  } 

  while (true) 

  { 

  return intent; 

  Uri uri2 = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri2, "text/plain"); 

  } 

  } 

//android获取一个用于打开音频文件的intent 

  public static Intent getAudioFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 

  intent.putExtra("oneshot", 0); 

  intent.putExtra("configchange", 0); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "audio/*"); 

  return intent; 

  } 

  //android获取一个用于打开视频文件的intent 

  public static Intent getVideoFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 

  intent.putExtra("oneshot", 0); 

  intent.putExtra("configchange", 0); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "video/*"); 

  return intent; 

  } 

  //android获取一个用于打开CHM文件的intent 

  public static Intent getChmFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addCategory("android.intent.category.DEFAULT"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "application/x-chm"); 

  return intent; 

  } 

//android获取一个用于打开Word文件的intent 

  public static Intent getWordFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addCategory("android.intent.category.DEFAULT"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "application/msword"); 

  return intent; 

  } 

//android获取一个用于打开Excel文件的intent 

  public static Intent getExcelFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addCategory("android.intent.category.DEFAULT"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "application/vnd.ms-excel"); 

  return intent; 

  } 

//android获取一个用于打开PPT文件的intent 

  public static Intent getPptFileIntent( String param ) 

  { 

  Intent intent = new Intent("android.intent.action.VIEW"); 

  intent.addCategory("android.intent.category.DEFAULT"); 

  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

  Uri uri = Uri.fromFile(new File(param )); 

  intent.setDataAndType(uri, "application/vnd.ms-powerpoint"); 

  return intent; 

  } 

}