我可以创建自己的文件夹来保存相机拍摄的照片。我已经在我的代码和图片保存到sdcard0，但名称总是临时，如果我采取其他图片，它是行不通的。有人可以帮我这个。
这里是我的MainActivity.java
public class MainActivity extends Activity implements OnClickListener{
private EditText nama, harga, kondisi, notelepon;
private TextView messageText;
private Button uploadButton, btnselectpic;
private ImageView imageview;
private int serverResponseCode = 0;
private ProgressDialog dialog = null;
private String upLoadServerUri = null;
private String imagepath=null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload);
nama = (EditText)findViewById(R.id.nama_barang);
harga = (EditText)findViewById(R.id.harga_barang);
kondisi = (EditText)findViewById(R.id.kondisi_barang);
notelepon = (EditText)findViewById(R.id.no_telepon);
uploadButton = (Button)findViewById(R.id.uploadButton);
messageText = (TextView)findViewById(R.id.messageText);
btnselectpic = (Button)findViewById(R.id.button_selectpic);
imageview = (ImageView)findViewById(R.id.imageView_pic);
btnselectpic.setOnClickListener(this);
uploadButton.setOnClickListener(this);
upLoadServerUri = "http://192.168.43.226/jualan/barang_tes/UploadToServer.php";
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds options to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu, menu);
return true;
}
@Override
public void onClick(View arg0) {
if(arg0==btnselectpic)
{
final CharSequence[] options = { "Take Photo", "Choose from Gallery","Cancel" };
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("Add Photo!");
builder.setItems(options, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
if (options[item].equals("Take Photo"))
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File f = new File(android.os.Environment.getExternalStorageDirectory(), "temp.jpg");
imagepath = f.getAbsolutePath();
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
startActivityForResult(intent, 1);
}
else if (options[item].equals("Choose from Gallery"))
{
Intent intent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, 2);
} else if (options[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
else if (arg0==uploadButton) {
dialog = ProgressDialog.show(MainActivity.this, "", "Uploading file...", true);
messageText.setText("uploading started.....");
new Thread(new Runnable() {
public void run() {
uploadFile(imagepath);
//send();
}
}).start();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
File f = new File(Environment.getExternalStorageDirectory().toString());
for (File temp : f.listFiles()) {
if (temp.getName().equals("temp.jpg")) {
f = temp;
break;
}
}
try {
Bitmap bitmap;
BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(),
bitmapOptions);
// bitmap = Bitmap.createScaledBitmap(bitmap, 70, 70, true);
imageview.setImageBitmap(bitmap);
String path = android.os.Environment
.getExternalStorageDirectory()
+ File.separator
+ "Phoenix" + File.separator + "default";
f.delete();
OutputStream outFile = null;
File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg");
try {
outFile = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile);
outFile.flush();
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
} else if (requestCode == 2) {
Uri selectedImage = data.getData();
imagepath = getPath(selectedImage);
String[] filePath = { MediaStore.Images.Media.DATA };
Cursor c = getContentResolver().query(selectedImage,filePath, null, null, null);
c.moveToFirst();
int columnIndex = c.getColumnIndex(filePath[0]);
String picturePath = c.getString(columnIndex);
c.close();
Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
//Log.w("path of image from gallery......******************.........", picturePath+"");
imageview.setImageBitmap(thumbnail);
messageText.setText("Uploading file path:" +imagepath);
}
}
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
public int uploadFile(String sourceFileUri) {
String fileName = sourceFileUri;
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
dialog.dismiss();
Log.e("uploadFile", "Source File not exist :"+imagepath);
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Source File not exist :"+ imagepath);
}
});
return 0;
}
else
{
try {
// open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
String nm = nama.getText().toString();
String hrg = harga.getText().toString();
String knds = kondisi.getText().toString();
String notlp = notelepon.getText().toString();
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
conn.setRequestProperty("uploaded_nama", nm);
conn.setRequestProperty("uploaded_harga", hrg);
conn.setRequestProperty("uploaded_kondisi", knds);
conn.setRequestProperty("uploaded_notelepon", notlp);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=uploaded_nama" + lineEnd); // name=uploaded_nama so you have to get PHP side using mobile_no
dos.writeBytes(lineEnd);
dos.writeBytes(nm); // nm is String variable
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=uploaded_harga" + lineEnd); // name=uploaded_nama so you have to get PHP side using mobile_no
dos.writeBytes(lineEnd);
dos.writeBytes(hrg); // nm is String variable
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=uploaded_kondisi" + lineEnd); // name=uploaded_nama so you have to get PHP side using mobile_no
dos.writeBytes(lineEnd);
dos.writeBytes(knds); // nm is String variable
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=uploaded_notelepon" + lineEnd); // name=uploaded_nama so you have to get PHP side using mobile_no
dos.writeBytes(lineEnd);
dos.writeBytes(notlp); // nm is String variable
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
if(serverResponseCode == 200){
runOnUiThread(new Runnable() {
public void run() {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+" C:/AppServ/www/kambing/uploads";
messageText.setText(msg);
Toast.makeText(MainActivity.this, "File Upload Complete.", Toast.LENGTH_SHORT).show();
//Intent i = new Intent(MainActivity.this,InputInfo.class);
finish();
//startActivity(i);
}
});
}
//close the streams //
fileInputStream.close();
dos.flush();
dos.close();
}
catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("MalformedURLException Exception : check script url.");
Toast.makeText(MainActivity.this, "MalformedURLException", Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (Exception e) {
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Got Exception : see logcat ");
Toast.makeText(MainActivity.this, "Got Exception : see logcat ", Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server Exception", "Exception : " + e.getMessage(), e);
}
dialog.dismiss();
return serverResponseCode;
} // End else block
}
}
答案 0 :(得分：0)
使用以下方法创建或获取（如果已存在）您的目录： （取自http://developer.android.com/training/basics/data-storage/files.html#WriteExternalStorage）
private File getAlbumStorageDir(Context context, String albumName) {
// Get the directory for the app's private pictures directory.
File file = new File(context.getExternalFilesDir(
Environment.DIRECTORY_PICTURES), albumName);
if (!file.mkdirs()) {
Log.e("MainActivity.error", "Directory not created");
}
return file;
}
以下方法实现文件复制:(来自： How to make a copy of a file in android?）
private void copy(File src, File dst) throws IOException {
InputStream in = new FileInputStream(src);
OutputStream out = new FileOutputStream(dst);
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
}
最后，在您的onActivityResult方法中，使用以下代码行将临时文件从相机复制到更持久的位置：
File picturesDir = getAlbumStorageDir(this, "myDirName");
File savedPic = new File(picturesDir.getAbsolutePath() + "/mynewpic.jpg");
try {
copy(temp, savedPic);
} catch (IOException e) {
Log.e("MainActivity.err", "failed to copy");
}
答案 1 :(得分：0)
如何制作文件夹
// make a folder with name PicturesNR2
String RootDir = Environment.getExternalStorageDirectory() + File.separator + "PicturesNR2";
File RootFile = new File(RootDir);
RootFile.mkdir();
如何检索文件
// here picname is with extension
File imageFile = new File("/sdcard/PicturesNR2/"+picname);
Bitmap bitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath());
还要添加您的清单文件
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
编辑：您想在代码中实现它，请点击
首先在你的班级制作一个方法
public void createFolder()
{
// here PictureFolder is the folder name you can change it offcourse
String RootDir = Environment.getExternalStorageDirectory()
+ File.separator + "PictureFolder";
File RootFile = new File(RootDir);
RootFile.mkdir();
}
然后在您的代码中的Activity Result方法
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
File f = new File(Environment.getExternalStorageDirectory().toString());
for (File temp : f.listFiles()) {
if (temp.getName().equals("temp.jpg")) {
f = temp;
break;
}
}
try {
Bitmap bitmap;
BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(),
bitmapOptions);
// bitmap = Bitmap.createScaledBitmap(bitmap, 70, 70, true);
imageview.setImageBitmap(bitmap);
String path = android.os.Environment
.getExternalStorageDirectory()
+ File.separator
+ "Phoenix" + File.separator + "default";
f.delete();
OutputStream outFile = null;
File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg");
try {
outFile = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile);
outFile.flush();
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
将此更改为此
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1 && resultCode == RESULT_OK) {
// create folder first
createFolder();
// get the photo from intent
Bitmap photo = (Bitmap) data.getExtras().get("data");
// set the bitmap to imageview
imageview.setImageBitmap(photo);
// this code is use to generate random number and add to file
// name so that each file should be different
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = "Image-"+ n +".jpg";
// set the file path
// sdcard/PictureFolder/ is the folder created in create folder method
String filePath = "/sdcard/PictureFolder/"+fname;
// the rest of the code is for saving the file to filepath mentioned above
FileOutputStream fileOutputStream = null;
try {
fileOutputStream = new FileOutputStream(filePath);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
BufferedOutputStream bos = new BufferedOutputStream(fileOutputStream);
//choose another format if PNG doesn't suit you
photo.compress(CompressFormat.PNG, 100, bos);
try {
bos.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
bos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if (requestCode == 2) {.........
我已经在手机上测试了这段代码并且效果很好
答案 2 :(得分：-1)
如果要将图片存储在SD卡的图片目录中，请执行以下操作：
private static File createPictureDirectory()
{
File sdDirectory = Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
return new File(sdDirectory, "mypictures");
}
这将创建并返回名为mypictures的文件夹，然后您可以通过写入将照片存储在那里。在存储照片之前，请务必记住在Android清单文件中请求写入权限。
我希望这会有所帮助。