android 打开文件

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epub: application/epub+zip

private void openFile(File f)
{
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);

/* 调用getMIMEType()来取得MimeType */
String type = getMIMEType(f);
/* 设置intent的file与MimeType */
intent.setDataAndType(Uri.fromFile(f),type);
startActivity(intent);
}

/* 判断文件MimeType的method */
private String getMIMEType(File f)
{
String type="";
String fName=f.getName();
/* 取得扩展名 */
String end=fName.substring(fName.lastIndexOf(".")
+1,fName.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"))
{
type = "audio";
}
else if(end.equals("3gp")||end.equals("mp4"))
{
type = "video";
}
else if(end.equals("jpg")||end.equals("gif")||end.equals("png")||
end.equals("jpeg")||end.equals("bmp"))
{
type = "image";
}
else if(end.equals("apk"))
{
/* android.permission.INSTALL_PACKAGES */
type = "application/vnd.android.package-archive";
}
else
{
type="*";
}
/*如果无法直接打开，就跳出软件列表给用户选择 */
if(end.equals("apk"))
{
}
else
{
type += "/*";
}
return type;
}

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