This is my current code:
public void onClick(View v) {
final Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
final Intent gallIntent=new Intent(Intent.ACTION_GET_CONTENT);
gallIntent.setType("image/*");
final Intent camIntent = new Intent("android.media.action.IMAGE_CAPTURE");
pickIntent.putExtra(Intent.EXTRA_INTENT, camIntent);
pickIntent.putExtra(Intent.EXTRA_INTENT, gallIntent);
pickIntent.putExtra(Intent.EXTRA_TITLE, "Select Source");
startActivityForResult(pickIntent, 0);
if (bitmap == null) {
Toast.makeText(getApplicationContext(),
"Please select image", Toast.LENGTH_SHORT).show();
} else {
dialog = ProgressDialog.show(CreatePod.this, "Uploading",
"Please wait...", true);
//new ImageUploadTask().execute();
}
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data){
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_CANCELED) {
Toast toast = Toast.makeText(this,"camera cancelled", 10000);
toast.show();
return;
}
// lets check if we are really dealing with a picture
if (requestCode == 0 && resultCode == RESULT_OK)
{
Bundle extras = data.getExtras();
Bitmap b = (Bitmap) extras.get("data");
//setContentView(R.layout.main);
imgView.setImageBitmap(b);
// save image to gallery
String timestamp = Long.toString(System.currentTimeMillis());
MediaStore.Images.Media.insertImage(getContentResolver(), b, timestamp, timestamp);
}
}
This gives the options Gallery and Camera(Actually, it shows an unsupported device in the place of camera. If I click on it, it gives NullPointerException and crashes. Is this the right way to do it? Or should I use PackageManger? If Yes, then how?
Looking of your code, I think you have a lack of basic android knowledge,
Miss-use of onActivityResult(), its a method of Activity class, take out it from onClick()
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
}
Just check basic android activity's method and how to use them.
Update:
Look at Android-Activity
Related
I am trying to capture image from camera. But it returns null Intent onActivityResult .
Here is my code
CaptureImageFromCamera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 7);
}
});
And onActivityResult is
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 7 && resultCode == RESULT_OK) {
try {
if(data.getData() == null) {
bitmap = (Bitmap)data.getExtras().get("data");
} else {
bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), data.getData());
}
ImageViewHolder.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
}
I am new to Android so please explain answer in detail.
Thanks in advance..!
Start Your work by passing intent through this :
startActivityForResult(new Intent(MediaStore.ACTION_IMAGE_CAPTURE), 100);
so after capturing the image from camera use to get data about images through intent :
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Uri yourCapturedImage = intent.getData();
}
Make sure you have added camera permissions, write permissions in manifest and also cross verify run time permissions.
Use your Intent like below, and specify the path where captured image will be write -
intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
Uri outputUri = Uri.fromFile("path of your directory");
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputUri);
startActivityForResult(intent, 7);
You can also use setImageURI() in onActivityResult() instead of setImageBitmap()
First of all add the camera permissions in android manifest. If your android version is greater than lollipop then you need to add run time permissions See documentations here
<uses-permission android:name="android.permission.CAMERA"/>
and then your code will be
CaptureImageFromCamera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 7);
}
});
and then use setImageUrI() in your onActivityResult()
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode)
{
case 7:
/*case 7 for image results and display image in imageview via Uri*/
if (resultCode == RESULT_OK)
{
Uri imageUri = data.getData();
ImageViewHolder.setImageURI(imageUri);
}
return;
default:
return;
}
}
Uri imageUri = data.getData() will no more work..
first get bitmap from data like this:
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
val imageBitmap = data.extras.get("data") as Bitmap
imageView.setImageBitmap(imageBitmap)
}
}
then save bitmap image.. please find details here:
https://developer.android.com/training/camera/photobasics
I call this function:
private void TakePhoto() {
LogService.log(TAG, "inTakePicture");
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
file = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/BlueSkyBio/media/", "test.jpg");
outputFileUri = Uri.fromFile(file);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent, TAKE_PICTURE);
}
Which takes me on the next onActivityResult:
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == TAKE_PICTURE) {
if(outputFileUri != null){
LogService.log("MainFragment", outputFileUri.toString());
String path = outputFileUri.toString();
selectedVideoPath = path.substring(7);
LogService.log("in take pic", "selectedImagePath: " + selectedVideoPath);
Intent paintActivity = new Intent(getActivity(), PaintActivity.class);
paintActivity.putExtra("selectedImagePath", selectedVideoPath);
paintActivity.putExtra("isVideo", false);
startActivity(paintActivity);
((FragmentActivity) getActivity()).finish();
} else{
// Toast.makeText(getActivity(), "No picture taken", Toast.LENGTH_SHORT).show();
Intent main = new Intent(getActivity(), FragmentActivity.class);
startActivity(main);
((FragmentActivity) getActivity()).finish();
}
}
}
This works ok, but if i call the intent to take a picture, and then press the back button, if i already took a picture before, it will load that picture, if not, it will crash, because by pressing back, it will not take a picture. What can i do to escape this situation?
I have tried to test:
if(data != null) // instead of: if(outputFileUri != null){
But this will never enter the "else" part of the code.
use these conditions:
private static final int CAMERA_PIC_REQUEST = 1337;
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==CAMERA_PIC_REQUEST && resultCode == RESULT_OK){
log.d("something","something");
}
else if (resultCode == Activity.RESULT_CANCELED)
{
log.d("something","something");
}
}
I read an text input from the user, this input i use it as a name of a picture i'm taking by the camera.
i store this name and the path of the image name into Sqlite Database.
what I'm trying to do is, after clicking OK to accept the taken picture, i want the saved path to be displayed in a toast.
the problem is, when I click OK to accept the picture, nothing is being displayed and i cant switch from the camera activity to the activity that called the camera activity"the previous activity"
Note: I'm using the emulator not a real device.
OnClickListener btn_TakePictureListener = new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
String imgPath = retrievePath();
intent.putExtra(MediaStore.EXTRA_OUTPUT, getImageUri(imgPath));
startActivityForResult(intent, RequestCode);
}
};
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RequestCode && resultCode == RESULT_OK) {
String s = data.getData().toString();
Toast.makeText(getBaseContext(), ""+s, Toast.LENGTH_SHORT).show();
}
}
if you are passing Uri for you image then you can retrieve image as taken by camera:
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(
Environment.getExternalStorageDirectory(), "temp.jpg")));
startActivityForResult(intent, 1);
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == NONE)
return;
if (requestCode == 1) {
// Set the file save path with directory
File picture = new File(Environment.getExternalStorageDirectory()
+ "/temp.jpg");
Uri imageuri= Uri.fromFile(picture);
//set to imageview here
}
}
EDIT:
For Getting data uri in onActivityResult start Camra Activiyt as:
Intent intent = new Intent(Intent.ACTION_PICK, null);
intent.setDataAndType(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI,IMAGE_UNSPECIFIED);
startActivityForResult(intent, 2);
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == NONE)
return;
if (requestCode == 1) {
Uri uriimg = data.getData();
Toast.makeText(getBaseContext(), ""+uriimg.toString(), Toast.LENGTH_SHORT).show();
}
}
In my application, I'm trying to make it so the User can press a button, which will allow them to take a picture using the stock camera application on their phone.
I am following the guide to using an external Camera app to capture images that I can use in my own app from the Android Developers Guide (http://developer.android.com/guide/topics/media/camera.html#intent-receive)
I'm having trouble with the onActivityResult() method, it apparently takes in 3 parameters
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
if(resultCode == RESULT_OK) {
Log.w("borre","Image saved to:\n" + data.getData());
} else if (resultCode == RESULT_CANCELED) {
// User cancelled the image capture
} else {
// Image capture failed, advise user
}
}
}
But at the moment, the data Intent is coming back as null, so calling any methods on the Intent parameter throws a NullPointerException
Here's the code I'm using to call up the Camera application (It's basically the same as the code in the guide)
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
Has anyone had this problem or knows why this Intent is coming back as null?
your are getting data part null bez you are not setting intent.setDataAndType() when you are starting Acitivty.like
public static final String IMAGE_UNSPECIFIED = "image/*";
Intent intent = new Intent(Intent.ACTION_PICK, null);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);
startActivityForResult(intent, 3);
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == 0)
return;
if (requestCode == 2) {
Uri uri=data.getData(); //YOU GET DATA HERE
}
//OR
if (requestCode == 3) {
Bundle extras = data.getExtras();
if (extras != null) {
Bitmap photo = extras.getParcelable("data");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0 - 100)????
imageView.setImageBitmap(photo);
}
}
or in your case getting image path use:
if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
//pic path
File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");
}
how to use data from another application to my application in android?
Is there any way to access data from other application in android?
You should read about sending and receiving content between applications, about content providers and return here with better question.
In this Example Calling a Camera Application using Intent, getting Bitmap and set in ImageView.
startCamera.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra("return-data", true);
startActivityForResult(intent);
}
});
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(bitmap);
Toast.makeText(cameraActivity.this, "Saved", Toast.LENGTH_LONG).show();
} else if (resultCode == Activity.RESULT_CANCELED) {
Toast.makeText(getBaseContext(), "Camera cancelled by user", Toast.LENGTH_SHORT).show();
}
}