Question

单击图像按钮时出现问题打开对话框询问我是否要从图库中选择或拍照。当我从图库中选择所有正确的图像时，我将其发送到服务器。但是当我选择相机时我可以拍照但是图片没有出现然后我看不到我发送到服务器的内容（如果有的话）。这是代码：

public class MainActivity extends Activity {

private final String PHP_URL = "http://wapps.no-ip.org/testservice/service.php";
private EditText fldLocation, fldDescription;
ImageView targetImage, btnLocation;
Button btnSend;
JSONParser jParser;
HttpResponse response;
Intent intent;
Bitmap theImage;
String selectedImagePath;
Uri imageUri;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.list);
    // ===============================================
    // tag elements from layout
    // ===============================================
    fldLocation = (EditText) findViewById(R.id.fldLocation);
    fldDescription = (EditText) findViewById(R.id.fldDescription);
    btnSend = (Button) findViewById(R.id.btnSend);
    targetImage = (ImageView) findViewById(R.id.targetimage);
    btnLocation = (ImageView) findViewById(R.id.btnLocation);

    registerForContextMenu(btnSend);
    targetImage.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            openAddPhoto();

        }
    });
    btnSend.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            MakePost();

        }
    });
}

public void MakePost() {

    // Create a new HttpClient and Post Header
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost(PHP_URL);

    //targetImage.buildDrawingCache();
    //theImage = targetImage.getDrawingCache();


    //theImage = BitmapFactory.decodeFile(selectedImagePath);

    ByteArrayOutputStream stream = new ByteArrayOutputStream();

    theImage.compress(Bitmap.CompressFormat.JPEG, 100, stream);

    byte[] byteArray = stream.toByteArray();

    String str = Base64.encodeBytes(byteArray);

    try {
        // Add your data
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
        nameValuePairs.add(new BasicNameValuePair("addimg", "true"));
        nameValuePairs.add(new BasicNameValuePair("img", str));
        //nameValuePairs.add(new BasicNameValuePair("img",f.getAbsolutePath()));
        nameValuePairs.add(new BasicNameValuePair("location", fldLocation
                .getText().toString()));
        nameValuePairs.add(new BasicNameValuePair("desc", fldDescription
                .getText().toString()));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

        // Execute HTTP Post Request
        httpclient.execute(httppost);// HttpResponse response =

    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
    } catch (IOException e) {
        // TODO Auto-generated catch block
    }
}

public void openAddPhoto() {

    AlertDialog.Builder dialog = new AlertDialog.Builder(this);
    dialog.setTitle("Choose path");
    String[] items = { "Camera", "Gallery" };
    dialog.setItems(items, new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int id) {

            if (id == 1) {
                // call gallery

                Intent pickPhoto = new Intent(
                        Intent.ACTION_PICK,
                        android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                startActivityForResult(pickPhoto, 1);

            } else {
                // Call camera Intent

                Intent takePicture = new Intent(
                        MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(takePicture, 0);
            }

        }
    });

    dialog.setNeutralButton("cancel",
            new android.content.DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                    dialog.dismiss();
                }
            });
    dialog.show();
}














@Override
protected void onActivityResult(int requestCode, int resultCode,
        Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    switch (requestCode) {
    case 0:
        if (resultCode == RESULT_OK) {

            imageUri = data.getData();
            fldDescription.setText(imageUri.toString());
            try {
                theImage = Media.getBitmap(this.getContentResolver(), imageUri);
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

        }

        break;
    case 1:
        if (resultCode == RESULT_OK) {

            imageUri = data.getData();
            fldDescription.setText(imageUri.toString()); 
            try {
                theImage = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri);
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            targetImage.setImageURI(imageUri);
        }

        break;
    }
}

}

Answer 1

你想启动意图并告诉它在哪里写文件，然后当意图返回时你知道文件的保存位置：

    File out = new File(path, somefilename);
    android.net.Uri uri = android.net.Uri.fromFile(out);

    Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);                
    takePicture.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, uri);           
    startActivityForResult(takePicture, 0);

相机和相机的问题画廊onActivityResult

1 个答案: