android打开pdf ppt word excel等文件

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//android获取一个用于打开HTML文件的intent

  public static Intent getHtmlFileIntent(File file)
       {
           Uri uri = Uri.parse(file.toString()).buildUpon().encodedAuthority("com.android.htmlfileprovider").scheme("content").encodedPath(file.toString()).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(File file)
       {
           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(file);
           intent.setDataAndType(uri, "image/*");
           return intent;
       }

//android获取一个用于打开PDF文件的intent

    public static Intent getPdfFileIntent(File file)
       {
         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(file);
         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(File file)
     {    
       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(file);
       intent.setDataAndType(uri, "text/plain");
       return intent;
     }

//android获取一个用于打开音频文件的intent

public static Intent getAudioFileIntent(File file)
       {
         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(file);
         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(File file)
       {
         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(file);
         intent.setDataAndType(uri, "video/*");
         return intent;
       }

//android获取一个用于打开CHM文件的intent

 public static Intent getChmFileIntent(File file)
       {
         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(file);
         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(File file)
       {
         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(file);
         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(File file)
       {
         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(file);
         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(File file)
       {
         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(file);
         intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
         return intent;
       }

//android获取一个用于打开apk文件的intent

 public static Intent getApkFileIntent(File file)
       {
           Intent intent = new Intent();  
           intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);  
           intent.setAction(android.content.Intent.ACTION_VIEW);  
           intent.setDataAndType(Uri.fromFile(file),  "application/vnd.android.package-archive");  
           return intent;
       }