Android打开各种类型的文件方法总结

转自： http://blog.csdn.net/eclipsexys/article/details/39552501
很简单，通过调用系统的intent，我们可以打开各种文件，不熟悉的朋友可以了解下action、datatype、uri的相关知识。

通用方法如下：

[java] view
plaincopyprint?





public static Intent openFile(String filePath){



File file = new File(filePath);

if(!file.exists()) return null;

/* 取得扩展名 */

String end=file.getName().substring(file.getName().lastIndexOf(".") + 1,file.getName().length()).toLowerCase();

/* 依扩展名的类型决定MimeType */

if(end.equals("m4a")||end.equals("mp3")||end.equals("mid")||

end.equals("xmf")||end.equals("ogg")||end.equals("wav")){

return getAudioFileIntent(filePath);

}else if(end.equals("3gp")||end.equals("mp4")){

return getAudioFileIntent(filePath);

}else if(end.equals("jpg")||end.equals("gif")||end.equals("png")||

end.equals("jpeg")||end.equals("bmp")){

return getImageFileIntent(filePath);

}else if(end.equals("apk")){

return getApkFileIntent(filePath);

}else if(end.equals("ppt")){

return getPptFileIntent(filePath);

}else if(end.equals("xls")){

return getExcelFileIntent(filePath);

}else if(end.equals("doc")){

return getWordFileIntent(filePath);

}else if(end.equals("pdf")){

return getPdfFileIntent(filePath);

}else if(end.equals("chm")){

return getChmFileIntent(filePath);

}else if(end.equals("txt")){

return getTextFileIntent(filePath,false);

}else{

return getAllIntent(filePath);

}

}



//Android获取一个用于打开APK文件的intent

public static Intent getAllIntent( String param ) {



Intent intent = new Intent();

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent.setAction(android.content.Intent.ACTION_VIEW);

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

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

return intent;

}

//Android获取一个用于打开APK文件的intent

public static Intent getApkFileIntent( String param ) {



Intent intent = new Intent();

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent.setAction(android.content.Intent.ACTION_VIEW);

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

intent.setDataAndType(uri,"application/vnd.android.package-archive");

return intent;

}



//Android获取一个用于打开VIDEO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AUDIO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;

}



//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获取一个用于打开文本文件的intent

public static Intent getTextFileIntent( String param, 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");

}else{

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

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

}

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;

}