Develop Reference

How to save Image to sqlite?

These codes can only capture and display image I took, and when I pressed save button, it only saves "Note title" onto my list View. And when I clicked "Note Title" it doesn't display the picture anymore. What should I add to save it and update it? Thanks.
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
Bitmap mphoto = (Bitmap) data.getExtras().get("data");
imageviewid.setImageBitmap(mphoto);
}
}
public void takeImageFromCamera(View view) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
private void saveNote(){
fillNameIfEmpty();
id = DbAccess.addNote(getBaseContext(), etName.getText().toString(), mFileName, DbContract.NoteEntry.TYPE_PHOTO, currentCat);
Toast.makeText(getApplicationContext(), R.string.toast_saved, Toast.LENGTH_SHORT).show();
}
private void updateNote(){
fillNameIfEmpty();
DbAccess.updateNote(getBaseContext(), id, etName.getText().toString(), mFileName, currentCat);
Toast.makeText(getApplicationContext(), R.string.toast_updated, Toast.LENGTH_SHORT).show();
}

Your DbAccess API doesn't know anything about an image in the note!
So I would extend your code to:
After picture is taken it saved in fail in application sandbox
Save filename of image assigned to note to database together with note
And don't forget to handle editing or deletion picture use cases!

I could select an image from gallery in android. But, i want to select next and previous images of the selected image. How do i do it?

I could select an image from gallery in android. But, i want to select next and previous images of the selected image. How do i do it?
This works fine.. for selecting and then displaying the image..now what do i do for selecting next and previous images?
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent();
// Show only images, no videos or anything else
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);
}
});
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
Uri uri = data.getData();
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
// Log.d(TAG, String.valueOf(bitmap));
ImageView imageView = (ImageView) findViewById(R.id.imageView);
imageView.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
}

I could select an image from gallery in android
Your code happens to bring up a gallery app on your device. You are requesting ACTION_GET_CONTENT for image/*. This means:
Other apps, besides a gallery, can respond to that Intent and can be chosen by the user
There will be devices that do not have an app that would be considered a "gallery"
How do i do it?
Write your own gallery. There is no concept of "next" or "previous" with ACTION_GET_CONTENT.
There are many image picker libraries for Android that might form the basis for your own gallery UI.

I forgot to write the most important thing, which is code for previous and next is not working.. till now i have written code only for previous, coz once it works; next ll be just few changes ahead.
moveToprevious is coming false n cursor is declared as global.. so that when a query for cusor s fired in getcontentresolver() is fired, it gets the needed value..
Please look into this!

Crop an image on surfaceView android

I am using the SurfaceHolder.Callback and Camera.PictureCallback to open Camera in my activity After taking image i want to crop that image and then save it to sd card. I found many solution for cropping via intent camera but didn't find any solution as per my Requirement.
I'll be thankful if someone help me.
Thanks in Advance.

You should implement Camera.PreviewCallback instead of Camera.PictureCallback,
by using the interface implemented method:
public void onPreviewFrame(byte[] data, Camera camera) {
if (shutterEnabled){
shutterEnabled = false;
// Process data
// Put it on a Bitmap
// Send it to cropImage
// -----
}
}
Take in account that if you didn't set on your camera parameters, setPreviewFormat, the picture on viewPreviewFrame would arrive as YUV (NV21) format.
Actually I'm looking how to make this part, this is why I bumped into your question.
The point here, how are you going to pass the picture to the crop method, you should look into that.
The shutterEnabled flag, it's enabled from your listener that 'watches' for that event.
private void cropImage( picture){
Intent cropIntent = new Intent("com.android.camera.action.CROP");
cropIntent.setDataAndType(picture, "image/*");
cropIntent.putExtra("aspectX",0);
cropIntent.putExtra("aspectY",0);
cropIntent.putExtra("return-data", true);
startActivityForResult(cropIntent, CAMERA_CROP_CODE);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if (resultCode == RESULT_OK && requestCode == CAMERA_CROP_CODE){
Bitmap bmp = (Bitmap)data.getExtras().get("data");
}
}

Start camera for capturing picture and store image after captureing it in gellary on button click

I am working on android application. I have an Activity in which there is two button first one for selecting image from gallary. i have applied function on it. i have one more button capture image . i want to work on it .but don't know how to start camera .I want that when i click button capture image it should start camera for capture image.and there should be option to cancel if don't want to take picture. after pressing cancel camera should cancel.
if i captures image it should it should show in Image View and automatically store in SD card .how should i proceed.

http://developer.android.com/guide/topics/media/camera.html. Everything you need to know about starting a camera. Go through the link.
private static final int TAKE_PHOTO_CODE = 1;
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(getTempFile(this)) );
startActivityForResult(intent, TAKE_PHOTO_CODE);
get uri
private File getTempFile(Context context){
return new File(path, "/tourpath/yourfilename.jpg");
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
switch(requestCode){
case TAKE_PHOTO_CODE:
try {
Bitmap captureBmp = Media.getBitmap(getContentResolver(), Uri.fromFile(file));
iv.setImageBitmap(captureBmp);//show in imageview
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
break;
}
}
}

setting picture captured by built-in camera into an ImageView

in my app i m calling built in camera for capturing picture but i want to set that picture into an image view following is the code . so what code should i add to it to set the picture into imageview.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(intent, 0);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK && requestCode == 0) {
String result = data.toURI();
// ...
}
}
Thanks in advance

Add a button and an ImageView to your main layout. When you click the button, first intent.putExtra to specify where the image will be stored, then start the camera intent. In your onActivityResult, if the resultCode comes back 0 that means the user accepted the picture. In this case, go grab the image from the path you specified as an extra of the intent. Create a bitmap from the file specified by the path, then set the image bitmap in your ImageView.