public class FileHelper {
private Context context;
/** SD卡是否存在**/
private boolean hasSD = false;
/** SD卡的路径**/
private String SDPATH;
/** 当前程序包的路径**/
private String FILESPATH;
public FileHelper(Context context) {
this.context = context;
hasSD = Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED);
SDPATH = Environment.getExternalStorageDirectory().getPath();
FILESPATH = this.context.getFilesDir().getPath();
}
/**
* 在SD卡上创建文件
*
* @throws IOException
*/
public File createSDFile(String fileName) throws IOException {
File file = new File(SDPATH + "//" + fileName);
if (!file.exists()) {
file.createNewFile();
}
return file;
}
/**
* 删除SD卡上的文件
*
* @param fileName
*/
public boolean deleteSDFile(String fileName) {
File file = new File(SDPATH + "//" + fileName);
if (file == null || !file.exists() || file.isDirectory())
return false;
return file.delete();
}
/**
* 读取SD卡中文本文件
*
* @param fileName
* @return
*/
public String readSDFile(String fileName) {
StringBuffer sb = new StringBuffer();
File file = new File(SDPATH + "//" + fileName);
try {
FileInputStream fis = new FileInputStream(file);
int c;
while ((c = fis.read()) != -1) {
sb.append((char) c);
}
fis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return sb.toString();
}
public String getFILESPATH() {
return FILESPATH;
}
public String getSDPATH() {
return SDPATH;
}
public boolean hasSD() {
return hasSD;
}
}
