获取本地文件文件类型
package file.zyf.com.utils;
import java.util.HashMap;
import java.util.Locale;
/**
* Created by 0 on 2018/4/12.
*/
public class MediaFile {
// 音频文件类型
public static final int FILE_TYPE_MP3 = 1;
public static final int FILE_TYPE_M4A = 2;
public static final int FILE_TYPE_WAV = 3;
public static final int FILE_TYPE_AMR = 4;
public static final int FILE_TYPE_AWB = 5;
public static final int FILE_TYPE_WMA = 6;
public static final int FILE_TYPE_OGG = 7;
public static final int FILE_TYPE_AAC = 8;
public static final int FILE_TYPE_MKA = 9;
public static final int FILE_TYPE_FLAC = 10;
private static final int FIRST_AUDIO_FILE_TYPE = FILE_TYPE_MP3;
private static final int LAST_AUDIO_FILE_TYPE = FILE_TYPE_FLAC;
//MIDI文件类型
public static final int FILE_TYPE_MID = 11;
public static final int FILE_TYPE_SMF = 12;
public static final int FILE_TYPE_IMY = 13;
private static final int FIRST_MIDI_FILE_TYPE = FILE_TYPE_MID;
private static final int LAST_MIDI_FILE_TYPE = FILE_TYPE_IMY;
// 视频文件类型
public static final int FILE_TYPE_MP4 = 21;
public static final int FILE_TYPE_M4V = 22;
public static final int FILE_TYPE_3GPP = 23;
public static final int FILE_TYPE_3GPP2 = 24;
public static final int FILE_TYPE_WMV = 25;
public static final int FILE_TYPE_ASF = 26;
public static final int FILE_TYPE_MKV = 27;
public static final int FILE_TYPE_MP2TS = 28;
public static final int FILE_TYPE_AVI = 29;
public static final int FILE_TYPE_WEBM = 30;
private static final int FIRST_VIDEO_FILE_TYPE = FILE_TYPE_MP4;
private static final int LAST_VIDEO_FILE_TYPE = FILE_TYPE_WEBM;
// 更多视频文件类型
public static final int FILE_TYPE_MP2PS = 200;
private static final int FIRST_VIDEO_FILE_TYPE2 = FILE_TYPE_MP2PS;
private static final int LAST_VIDEO_FILE_TYPE2 = FILE_TYPE_MP2PS;
// 图片文件类型
public static final int FILE_TYPE_JPEG = 31;
public static final int FILE_TYPE_GIF = 32;
public static final int FILE_TYPE_PNG = 33;
public static final int FILE_TYPE_BMP = 34;
public static final int FILE_TYPE_WBMP = 35;
public static final int FILE_TYPE_WEBP = 36;
private static final int FIRST_IMAGE_FILE_TYPE = FILE_TYPE_JPEG;
private static final int LAST_IMAGE_FILE_TYPE = FILE_TYPE_WEBP;
// 播放列表中的文件类型
public static final int FILE_TYPE_M3U = 41;
public static final int FILE_TYPE_PLS = 42;
public static final int FILE_TYPE_WPL = 43;
public static final int FILE_TYPE_HTTPLIVE = 44;
private static final int FIRST_PLAYLIST_FILE_TYPE = FILE_TYPE_M3U;
private static final int LAST_PLAYLIST_FILE_TYPE = FILE_TYPE_HTTPLIVE;
// DRM文件类型
public static final int FILE_TYPE_FL = 51;
private static final int FIRST_DRM_FILE_TYPE = FILE_TYPE_FL;
private static final int LAST_DRM_FILE_TYPE = FILE_TYPE_FL;
// 其他流行的文件类型
public static final int FILE_TYPE_TEXT = 100;
public static final int FILE_TYPE_HTML = 101;
public static final int FILE_TYPE_PDF = 102;
public static final int FILE_TYPE_XML = 103;
public static final int FILE_TYPE_MS_WORD = 104;
public static final int FILE_TYPE_MS_EXCEL = 105;
public static final int FILE_TYPE_MS_POWERPOINT = 106;
public static final int FILE_TYPE_ZIP = 107;
private static final HashMap<String, MediaFileType> sFileTypeMap = new HashMap<>();
private static final HashMap<String, Integer> sMimeTypeMap = new HashMap<>();
public static class MediaFileType {
public final int fileType;
public final String mimeType;
MediaFileType(int fileType, String mimeType) {
this.fileType = fileType;
this.mimeType = mimeType;
}
}
static void addFileType(String extension, int fileType, String mimeType) {
sFileTypeMap.put(extension, new MediaFileType(fileType, mimeType));
sMimeTypeMap.put(mimeType, fileType);
}
static {
addFileType("MP3", FILE_TYPE_MP3, "audio/mpeg");
addFileType("MPGA", FILE_TYPE_MP3, "audio/mpeg");
addFileType("M4A", FILE_TYPE_M4A, "audio/mp4");
addFileType("WAV", FILE_TYPE_WAV, "audio/x-wav");
addFileType("AMR", FILE_TYPE_AMR, "audio/amr");
addFileType("AWB", FILE_TYPE_AWB, "audio/amr-wb");
addFileType("WMA", FILE_TYPE_WMA, "audio/x-ms-wma");
addFileType("OGG", FILE_TYPE_OGG, "audio/ogg");
addFileType("OGG", FILE_TYPE_OGG, "application/ogg");
addFileType("OGA", FILE_TYPE_OGG, "application/ogg");
addFileType("AAC", FILE_TYPE_AAC, "audio/aac");
addFileType("AAC", FILE_TYPE_AAC, "audio/aac-adts");
addFileType("MKA", FILE_TYPE_MKA, "audio/x-matroska");
addFileType("MID", FILE_TYPE_MID, "audio/midi");
addFileType("MIDI", FILE_TYPE_MID, "audio/midi");
addFileType("XMF", FILE_TYPE_MID, "audio/midi");
addFileType("RTTTL", FILE_TYPE_MID, "audio/midi");
addFileType("SMF", FILE_TYPE_SMF, "audio/sp-midi");
addFileType("IMY", FILE_TYPE_IMY, "audio/imelody");
addFileType("RTX", FILE_TYPE_MID, "audio/midi");
addFileType("OTA", FILE_TYPE_MID, "audio/midi");
addFileType("MXMF", FILE_TYPE_MID, "audio/midi");
addFileType("MPEG", FILE_TYPE_MP4, "video/mpeg");
addFileType("MPG", FILE_TYPE_MP4, "video/mpeg");
addFileType("MP4", FILE_TYPE_MP4, "video/mp4");
addFileType("M4V", FILE_TYPE_M4V, "video/mp4");
addFileType("3GP", FILE_TYPE_3GPP, "video/3gpp");
addFileType("3GPP", FILE_TYPE_3GPP, "video/3gpp");
addFileType("3G2", FILE_TYPE_3GPP2, "video/3gpp2");
addFileType("3GPP2", FILE_TYPE_3GPP2, "video/3gpp2");
addFileType("MKV", FILE_TYPE_MKV, "video/x-matroska");
addFileType("WEBM", FILE_TYPE_WEBM, "video/webm");
addFileType("TS", FILE_TYPE_MP2TS, "video/mp2ts");
addFileType("AVI", FILE_TYPE_AVI, "video/avi");
addFileType("WMV", FILE_TYPE_WMV, "video/x-ms-wmv");
addFileType("ASF", FILE_TYPE_ASF, "video/x-ms-asf");
addFileType("JPG", FILE_TYPE_JPEG, "image/jpeg");
addFileType("JPEG", FILE_TYPE_JPEG, "image/jpeg");
addFileType("GIF", FILE_TYPE_GIF, "image/gif");
addFileType("PNG", FILE_TYPE_PNG, "image/png");
addFileType("BMP", FILE_TYPE_BMP, "image/x-ms-bmp");
addFileType("WBMP", FILE_TYPE_WBMP, "image/vnd.wap.wbmp");
addFileType("WEBP", FILE_TYPE_WEBP, "image/webp");
addFileType("M3U", FILE_TYPE_M3U, "audio/x-mpegurl");
addFileType("M3U", FILE_TYPE_M3U, "application/x-mpegurl");
addFileType("PLS", FILE_TYPE_PLS, "audio/x-scpls");
addFileType("WPL", FILE_TYPE_WPL, "application/vnd.ms-wpl");
addFileType("M3U8", FILE_TYPE_HTTPLIVE, "application/vnd.apple.mpegurl");
addFileType("M3U8", FILE_TYPE_HTTPLIVE, "audio/mpegurl");
addFileType("M3U8", FILE_TYPE_HTTPLIVE, "audio/x-mpegurl");
addFileType("FL", FILE_TYPE_FL, "application/x-android-drm-fl");
addFileType("TXT", FILE_TYPE_TEXT, "text/plain");
addFileType("HTM", FILE_TYPE_HTML, "text/html");
addFileType("HTML", FILE_TYPE_HTML, "text/html");
addFileType("PDF", FILE_TYPE_PDF, "application/pdf");
addFileType("DOC", FILE_TYPE_MS_WORD, "application/msword");
addFileType("XLS", FILE_TYPE_MS_EXCEL, "application/vnd.ms-excel");
addFileType("PPT", FILE_TYPE_MS_POWERPOINT, "application/mspowerpoint");
addFileType("FLAC", FILE_TYPE_FLAC, "audio/flac");
addFileType("ZIP", FILE_TYPE_ZIP, "application/zip");
addFileType("MPG", FILE_TYPE_MP2PS, "video/mp2p");
addFileType("MPEG", FILE_TYPE_MP2PS, "video/mp2p");
}
/**
* 检查是否有音频
* @param fileType 文件类型的整数值
* @return 如果是音频类型，则返回true;否则返回false
*/
public static boolean isAudioFileType(int fileType) {
return ((fileType >= FIRST_AUDIO_FILE_TYPE &&
fileType <= LAST_AUDIO_FILE_TYPE) ||
(fileType >= FIRST_MIDI_FILE_TYPE &&
fileType <= LAST_MIDI_FILE_TYPE));
}
/**
* 检查是否有视频
* @param fileType 文件类型的整数值
* @return 如果是视频类型，则返回true;否则返回false
*/
public static boolean isVideoFileType(int fileType) {
return (fileType >= FIRST_VIDEO_FILE_TYPE &&
fileType <= LAST_VIDEO_FILE_TYPE)
|| (fileType >= FIRST_VIDEO_FILE_TYPE2 &&
fileType <= LAST_VIDEO_FILE_TYPE2);
}
/**
* 检查是否有图片
* @param fileType 文件类型的整数值
* @return 如果是图片类型，则返回true;否则返回false
*/
public static boolean isImageFileType(int fileType) {
return (fileType >= FIRST_IMAGE_FILE_TYPE &&
fileType <= LAST_IMAGE_FILE_TYPE);
}
/**
* 检查是否是播放列表
* @param fileType 文件类型的整数值
* @return 如果是播放列表，则返回true;否则返回false
*/
public static boolean isPlayListFileType(int fileType) {
return (fileType >= FIRST_PLAYLIST_FILE_TYPE &&
fileType <= LAST_PLAYLIST_FILE_TYPE);
}
/**
* 检查是否有DRM
* @param fileType 文件类型的整数值
* @return 如果是DRM类型，则返回true;否则返回false
*/
public static boolean isDrmFileType(int fileType) {
return (fileType >= FIRST_DRM_FILE_TYPE &&
fileType <= LAST_DRM_FILE_TYPE);
}
/**
* 通过文件路径获取文件的扩展名
* @param path 文件路径
* @return MediaFileType如果给定的文件扩展名存在，或者为null
*/
public static MediaFileType getFileType(String path) {
int lastDot = path.lastIndexOf('.');
if (lastDot < 0)
return null;
return sFileTypeMap.get(path.substring(lastDot + 1).toUpperCase(Locale.ROOT));
}
/**
* 检查给定的MIME类型是否是MIME类型的媒体
* @param mimeType MIME类型检查
* @return 如果给定的MIME类型是MIME类型媒体，则返回true;否则返回false
*/
public static boolean isMimeTypeMedia(String mimeType) {
int fileType = getFileTypeForMimeType(mimeType);
return isAudioFileType(fileType) || isVideoFileType(fileType)
|| isImageFileType(fileType) || isPlayListFileType(fileType);
}
/**
* 根据文件名称生成标题
* @param path 文件路径
*
* @return 文件扩展名
*/
public static String getFileTitle(String path) {
// extract file name after last slash
int lastSlash = path.lastIndexOf('/');
if (lastSlash >= 0) {
lastSlash++;
if (lastSlash < path.length()) {
path = path.substring(lastSlash);
}
}
// truncate the file extension (if any)
int lastDot = path.lastIndexOf('.');
if (lastDot > 0) {
path = path.substring(0, lastDot);
}
return path;
}
/**
* 获取我的类型整数值
* @param mimeType MIME类型获取
* @return 如果存在则返回mime类型值;如果不存在则返回0
*/
public static int getFileTypeForMimeType(String mimeType) {
Integer value = sMimeTypeMap.get(mimeType);
return (value == null ? 0 : value.intValue());
}
/**
* 获取文件的MIME类型基于路径
* @param path 文件路径
* @return 返回mime类型（如果存在），或者为null
*/
public static String getMimeTypeForFile(String path) {
MediaFileType mediaFileType = getFileType(path);
return (mediaFileType == null ? null : mediaFileType.mimeType);
}
}调用方式
MediaFile.MediaFileType mdeiaFileType = MediaFile.getFileType(file.getAbsolutePath());
if (mdeiaFileType.mimeType.indexOf("image") != -1) {
fileType = FileType.IMAGE;
} else if (mdeiaFileType.mimeType.indexOf("video") != -1) {
fileType = FileType.VIDEO;
} else if (mdeiaFileType.mimeType.indexOf("audio") != -1) {
fileType = FileType.AUDIO;
} else if (mdeiaFileType.mimeType.indexOf("application") != -1 || mdeiaFileType.mimeType.indexOf("text") != -1) {
fileType = FileType.WORD;
}else {
fileType = FileType.WORD;
}