这是我的源代码，当点击浏览按钮从图库中拍照或者使用相机我想要创建一个名为“myfolder”的新文件夹，并且我通过相机捕获的所有图片保存在该文件夹而不是移动我是怎么做的默认图库文件夹 ??
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
public class AddEditCountry extends Activity {
private long rowID;
private EditText nameEt;
private EditText capEt;
private EditText codeEt;
private EditText Donedate;
private EditText Notes;
private EditText Person;
private ImageView imageView1;
public static Bitmap yourSelectedImage = null;
public static byte[] blob = null;
private final int CAMERA_PICTURE = 1;
private final int GALLERY_PICTURE = 2;
private Intent pictureActionIntent = null;
//public static byte[] blob = new byte[2048];
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.add_country);
nameEt = (EditText) findViewById(R.id.Address);
capEt = (EditText) findViewById(R.id.Stage);
codeEt = (EditText) findViewById(R.id.Dueby);
Donedate = (EditText) findViewById(R.id.Donedate);
Notes = (EditText) findViewById(R.id.Notes);
Person = (EditText) findViewById(R.id.Person);
imageView1 = (ImageView) findViewById(R.id.imageView1);
Button Browse = (Button) findViewById(R.id.Browse);
Browse.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
// Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
// intent.setType("image/*");
// startActivityForResult(intent, 0);
startDialog();
}
});
Bundle extras = getIntent().getExtras();
if (extras != null)
{
rowID = extras.getLong("row_id");
nameEt.setText(extras.getString("name"));
capEt.setText(extras.getString("cap"));
codeEt.setText(extras.getString("code"));
Donedate.setText(extras.getString("Location"));
Notes.setText(extras.getString("Notes"));
Person.setText(extras.getString("Person"));
}
Button saveButton =(Button) findViewById(R.id.saveBtn);
saveButton.setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
if (nameEt.getText().length() != 0)
{
AsyncTask<Object, Object, Object> saveContactTask =
new AsyncTask<Object, Object, Object>()
{
@Override
protected Object doInBackground(Object... params)
{
saveContact();
return null;
}
@Override
protected void onPostExecute(Object result)
{
finish();
}
};
saveContactTask.execute((Object[]) null);
}
else
{
AlertDialog.Builder alert = new
AlertDialog.Builder(AddEditCountry.this);
alert.setTitle(R.string.errorTitle);
alert.setMessage(R.string.errorMessage);
alert.setPositiveButton(R.string.errorButton, null);
alert.show();
}
}
});
}
private void saveContact()
{
// byte[] blob = new byte[2048];
ByteArrayOutputStream outStr = new ByteArrayOutputStream();
yourSelectedImage.compress(CompressFormat.JPEG, 100, outStr);
blob = outStr.toByteArray();
DatabaseConnector dbConnector = new DatabaseConnector(this);
if (getIntent().getExtras() == null)
{
dbConnector.insertContact(nameEt.getText().toString(),
capEt.getText().toString(),
codeEt.getText().toString(),
Donedate.getText().toString(),
Notes.getText().toString(),
Person.getText().toString()
,blob
);
}
else
{
dbConnector.updateContact(rowID,
nameEt.getText().toString(),
capEt.getText().toString(),
codeEt.getText().toString(),
Donedate.getText().toString(),
Notes.getText().toString(),
Person.getText().toString()
, blob
);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
if (requestCode == GALLERY_PICTURE) {
Uri uri = imageReturnedIntent.getData();
if (uri != null) {
// User had pick an image.
Cursor cursor = getContentResolver().query(uri, new String[]
{ android.provider.MediaStore.Images.ImageColumns.DATA }, null, null, null);
cursor.moveToFirst();
final String imageFilePath = cursor.getString(0);
File photos = new File(imageFilePath);
yourSelectedImage = decodeFile(photos);
yourSelectedImage =
Bitmap.createScaledBitmap(yourSelectedImage, 150, 150, true);
imageView1.setImageBitmap(yourSelectedImage);
cursor.close();
}
else {
Toast toast = Toast.makeText(this, "No Image is selected.",
Toast.LENGTH_LONG);
toast.show();
}
}
else if (requestCode == CAMERA_PICTURE) {
if (imageReturnedIntent.getExtras() != null) {
// here is the image from camera
yourSelectedImage = (Bitmap)
imageReturnedIntent.getExtras().get("data");
imageView1.setImageBitmap(yourSelectedImage);
}
}
}
private Bitmap decodeFile(File f) {
try {
// decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f), null, o);
// Find the correct scale value. It should be the power of 2.
final int REQUIRED_SIZE = 70;
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp / 2 < REQUIRED_SIZE || height_tmp / 2 <
REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale++;
}
// decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeStream(new FileInputStream(f), null,
o2);
}
catch (FileNotFoundException e) {
}
return null;
}
private void startDialog() {
AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(this);
myAlertDialog.setTitle("Upload Pictures Option");
myAlertDialog.setMessage("How do you want to set your picture?");
myAlertDialog.setPositiveButton("Gallery", new
DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
pictureActionIntent = new Intent(Intent.ACTION_GET_CONTENT,
null);
pictureActionIntent.setType("image/*");
pictureActionIntent.putExtra("return-data", true);
startActivityForResult(pictureActionIntent, GALLERY_PICTURE);
}
});
myAlertDialog.setNegativeButton("Camera", new
DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
pictureActionIntent = new
Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(pictureActionIntent, CAMERA_PICTURE);
}
});
myAlertDialog.show();
}
}
答案 0 :(得分：1)
试试这个::
private void SelectPhotoFromCamera()
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File file = new File(Environment.getExternalStorageDirectory(),
"/DCIM" + ".jpg");
if(file.isDirectory())
{
//DO SOMETHING
}
else
{
//DO SOMETHING
}
outputFileUri = Uri.fromFile(file);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent, SELECT_PICTURE_CAMERA);
}
答案 1 :(得分：0)
看看这篇文章，它有类似的问题。您需要使用媒体扫描仪。 Android - Why my saved image is not appearing in the default gallery of my phone?
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
public class ImageSaver {
private String TAG = "ImageSaver";
private Context context;
private String FILENAME_LEADER = "bijintokei";
private String DOWNLOAD_FOLDER = "download";
private String STORAGE_DESTINATION = "/sdcard";
private CompressFormat COMPRESS_FORMAT = CompressFormat.JPEG;
/**
* Return file extension
*
* @return
*/
private String getFileExtention() {
String result = "bmp";
if (COMPRESS_FORMAT.equals(CompressFormat.JPEG)) {
result = "jpg";
}
if (COMPRESS_FORMAT.equals(CompressFormat.PNG)) {
result = "png";
}
return result;
}
/**
* Constructor
*
* @param context
*/
public ImageSaver(Context context) {
this.context = context;
}
/**
* Return appropriate file path for saving
*
* @param hhmm
* @return File path
*/
public String getFilePath4Saving(String hhmm) {
String fileName = "", destination = this.getDefaultLocation(), filePath = "";
int i = 0;
File file;
do {
fileName = getMixedFileName(hhmm, i++);
filePath = String.format("%s/%s", destination, fileName);
file = new File(filePath);
} while (file.exists());
Log.d(TAG, "File path for saving: " + filePath);
return filePath;
}
/**
* Return a mixed file name from: - FILENAME_LEADER - Specified time - Order
* number
*
* @param hhmm
* @param i
* @return
*/
private String getMixedFileName(String hhmm, int i) {
String fileName = String.format("%s%s", FILENAME_LEADER, hhmm);
String extension = getFileExtention();
String result = String.format("%s.%s", fileName, extension);
if (i > 0) {
result = String.format("%s-%d.%s", fileName, i, extension);
}
return result;
}
/**
* Make sure Download folder is exists in the specified path
*/
private boolean MakeSureFolderIsExists(String path, String folder) {
File file = new File(path + "/" + folder);
boolean result = true;
if (!file.exists()) {
result = file.mkdir();
Log.d(TAG,
"Create folder " + path + "/" + folder + ": "
+ Boolean.toString(result));
}
return result;
}
/**
* Return default location for saving image
*
* @return By default return external storage
*/
private String getDefaultLocation() {
String result = this.STORAGE_DESTINATION;
if (MakeSureFolderIsExists(result, DOWNLOAD_FOLDER)) {
result = result + "/" + DOWNLOAD_FOLDER;
}
return result;
}
/**
* Save bitmap for hhmm minute to default destination
*
* @param bitmap
* @param hhmm
* @throws IOException
*/
public void saveImage(Bitmap bitmap, String hhmm) throws IOException {
Log.d(TAG, "Saving image: " + hhmm);
String filePath = getFilePath4Saving(hhmm);
File fo = new File(filePath);
FileOutputStream out = new FileOutputStream(fo);
bitmap.compress(CompressFormat.JPEG, 100, out);
out.flush();
out.close();
requestMediaScannerRefesh();
}
/**
* Require Media Scanner refresh
*/
private void requestMediaScannerRefesh() {
context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri
.parse("file://" + Environment.getExternalStorageDirectory())));
}
public static Bitmap decodeFile(File f,int screenHeight,
int screenWidth){
Bitmap b = null;
try {
//Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
FileInputStream fis = new FileInputStream(f);
BitmapFactory.decodeStream(fis, null, o);
fis.close();
int scale = 1;
if (o.outHeight > screenHeight || o.outWidth > screenWidth) {
scale = (int)Math.pow(2, (int) Math.round(Math.log(screenHeight / (double) Math.max(o.outHeight, o.outWidth)) / Math.log(0.5)));
}
//Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
fis = new FileInputStream(f);
b = BitmapFactory.decodeStream(fis, null, o2);
fis.close();
} catch (IOException e) {
}
return b;
}
}