I have worked around for a week , and I cannot see why I can't get my thumbnail. I only need it , and not the actual image, and I read that it is convenient to get it through Mediastore.captureimage with no urifile passed to the intent .
My code :
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends Activity {
private ImageView image;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image = (ImageView) findViewById(R.id.image);
}
public void vignette(View vue) {
Intent intention = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intention, 1);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1) {
Uri imageUri = null;
if (data != null) {
if (data.hasExtra("data")) {
Bitmap vignette = (Bitmap) data.getExtras().get("data");
image.setImageBitmap(vignette);
}
}
}
}
}
Actually, data is not null,
but hasExtra("data") gives null.
Though I can see
Intent { act=inline-data dat=content://media/external/images/media/8767 (has extras) }
... is there a way to get that extra !
Inorder to get bitmap from bitmap
Uri imageUri = data.getData();
Bitmap vignette = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri);
call this in your onActivityResult function this will give the bitmap
You can always resize the bitmap to your requirement
vignette =Bitmap.createScaledBitmap(vignette ,100,100, true);
image.setImageBitmap(vignette);
this will create a bitmap of 100*100
Related
MainActivity.java :
package com.example.dell.capcrop;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.annotation.Nullable;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
final int CAMERA_CAPTURE=1;
private Uri picUri;
final int PIC_CROP=2;
Bundle bundle;
Bitmap bitmap;
ImageView img;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button captureBtn=(Button)findViewById(R.id.capture_btn);
captureBtn.setOnClickListener(this);
}
#Override
public void onClick(View v){
if (v.getId()==R.id.capture_btn){
try {
Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(captureIntent,CAMERA_CAPTURE);
}
catch (ActivityNotFoundException anfe){
String errorMessage ="Whoops - your device doesn't support capturing image";
Toast toast=Toast.makeText(this,errorMessage,Toast.LENGTH_SHORT);
toast.show();
}
}
}
private void performCrop() {
try{
Intent cropIntent=new Intent("com.android.camera.action.CROP");
cropIntent.setDataAndType(picUri,"image/*");
cropIntent.putExtra("crop","true");
cropIntent.putExtra("aspectX",1);
cropIntent.putExtra("aspectY",1);
cropIntent.putExtra("outputX",256);
cropIntent.putExtra("outputY",256);
cropIntent.putExtra("return_data",true);
startActivityForResult(cropIntent,PIC_CROP);
}
catch (ActivityNotFoundException anfe)
{
String errorMessage="Whoops - your device doesn't support capturing image";
Toast toast=Toast.makeText(this,errorMessage,Toast.LENGTH_SHORT);
toast.show();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==request&&resultCode==RESULT_OK)
{
bundle=data.getExtras();
bitmap=(Bitmap)bundle.get("data");
img.setImageBitmap(bitmap);
Thread thread=new Thread()
{
#Override
public void run() {
try {
sleep(2000);
Intent intent=new Intent(getApplicationContext(),result.class);
bundle.putParcelable("bmp",bitmap);
intent.putExtras(bundle);
startActivity(intent);
finish();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
};
thread.start();
}
if (resultCode == RESULT_OK) {
if (requestCode == CAMERA_CAPTURE) {
picUri = data.getData();
performCrop();
} else if (requestCode == PIC_CROP) {
Bundle extras = data.getExtras();
Bitmap thePic = extras.getParcelable("data");
ImageView picView = (ImageView) findViewById(R.id.picture);
picView.setImageBitmap(thePic);
}
}
}
}
My app is basically a sign language interpreter and I need to remove an error. Here is the code in which there is multiple onactivityresult() definition which is causing error. I do some changes but all in vain. In this code the mobile camera capture image and show a frame in which the user crop the required part of image and show in the next activity.
This question already has an answer here:
Android camera Intent not saving in gallery [duplicate]
(1 answer)
Closed 5 years ago.
I am new to programming and especially Android. I am making a simple application where I am invoking the camera and taking a picture, the picture is then displayed in an ImageView but I also want it to be stored in the gallery when I click the button to view the stored pictures.
My Code:
package com.example.picture.app;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageView;
import java.io.File;
public class MainActivity extends AppCompatActivity {
public static final int CAMERA_REQUEST = 10;
private ImageView imgView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//get access to the image view
imgView = findViewById(R.id.imgView);
}
//this method will be called when the take photo button is clicked
public void btnTakePhotoClicked(View v) {
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
public void onImageGalleryClicked(View v) {
//invoke the image gallery using n implicit intent
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
//where do we want to find the data
File pictureDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
String pictureDirectoryPath = pictureDirectory.getPath();
//get a uri representation
Uri data = Uri.parse(pictureDirectoryPath);
//set the data and the type. Get all image types
photoPickerIntent.setDataAndType(data, "image/*");
startActivityForResult(photoPickerIntent, 20);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
//DID THE USER CHOOSE OK? If so code inside this code will execute
if (resultCode == RESULT_OK) {
if (requestCode == CAMERA_REQUEST) {
//WE ARE HEARING BACK FROM THE CAMERA
Bitmap cameraImage = (Bitmap) data.getExtras().get("data");
//at this point we have the image from the camera
imgView.setImageBitmap(cameraImage);
}
}
}
You can use the compress() method to save it in External storage.
You can try this
try
{
FileOutputStream out = new FileOutputStream(new File(Environment.getExternalStorageDirectory().toString() + "/bmp.png"));
cameraImage.compress(Bitmap.CompressFormat.PNG, 100, out);
out.flush();
out.close();
}
catch (Exception e)
{
Toast.makeText(getBaseContext(),e.getMessage(), Toast.LENGTH_SHORT);
}
Also, you have to add uses permission <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
This question already has answers here:
Low picture/image quality when capture from camera
(3 answers)
Closed 5 years ago.
I want to take a picture from the Camera and Upload it to Server, but when I take a Picture from the Camera and Upload the Picture is low Resolution.
Code :
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
CaptureImageFromCamera = (ImageView)findViewById(R.id.imageView);
CaptureImageFromCamera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(takePictureIntent, 1);
}
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
if (requestCode == 1)
try {
onCaptureImageResult(data);
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void onCaptureImageResult(Intent data) throws IOException {
bitmap = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes;
bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, bytes);
File destination = new File(Environment.getExternalStorageDirectory(),
"DCA/Attachment/" + System.currentTimeMillis() + ".png");
FileOutputStream fo;
try {
destination.createNewFile();
fo = new FileOutputStream(destination);
fo.write(bytes.toByteArray());
fo.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
ImageViewHolder.setImageBitmap(bitmap);
}
Can be seen that the image quality is low resolution.
Is there a way to solve this problem?
[UPDATE] HOW I TO SOLVE THIS
I read the article here to solve this problem
Note: Read from the start page
package com.example.admin.camsdemo;
import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
Button captureimage;
ContentValues cv;
Uri imageUri;
ImageView imgView;
public static final int PICTURE_RESULT=111;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
captureimage=(Button)findViewById(R.id.opencamera);
imgView=(ImageView)findViewById(R.id.img);
captureimage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
cv = new ContentValues();
cv.put(MediaStore.Images.Media.TITLE, "My Picture");
cv.put(MediaStore.Images.Media.DESCRIPTION, "From Camera");
imageUri = getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, cv);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, PICTURE_RESULT);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case PICTURE_RESULT:
if (requestCode == PICTURE_RESULT)
if (resultCode == Activity.RESULT_OK) {
try {
Bitmap thumbnail = MediaStore.Images.Media.getBitmap(
getContentResolver(), imageUri);
imgView.setImageBitmap(thumbnail);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
}
Try using TextureView.SurfaceTextureListener and camera.takePicture(shutterCallback, rawCallback, pictureCallback)
For images taken from camera, you should consider JPEG compression. PNG is more suitable for icons where the colors used are few.
When I take a picture, the picture will saved on the SD.(This works very well)
But the picture won´t shows in the imageView. Do you have any idea?
package de.example.Camera;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Cam extends Activity {
private Uri fileUri;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.b_cam);
Button button2 = (Button) findViewById(R.id.photo);
button2.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Start ActivityTwo
/*
* Intent intent = new Intent(getApplicationContext(),
* ActivityTwo.class); intent.putExtra("MyStringValue",
* editText1.getText().toString()); startActivity(intent);
*/
try {
PackageManager packageManager = getPackageManager();
boolean doesHaveCamera = packageManager
.hasSystemFeature(PackageManager.FEATURE_CAMERA);
if (doesHaveCamera) {
// start the image capture Intent
Intent intent = new Intent(
MediaStore.ACTION_IMAGE_CAPTURE);
// Get our fileURI
fileUri = getOutputMediaFile();
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(intent, 100);
}
} catch (Exception ex) {
Toast.makeText(getApplicationContext(),
"There was an error with the camera.",
Toast.LENGTH_LONG).show();
}
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode,
Intent intent) {
if (requestCode == 100) {
if (resultCode == RESULT_OK) {
if (intent == null) {
// The picture was taken but not returned
Toast.makeText(
getApplicationContext(),
"The picture was taken and is located here: "
+ fileUri.toString(), Toast.LENGTH_LONG)
.show();
}else {
// The picture was returned
Bundle extras = intent.getExtras();
ImageView imageView1 = (ImageView) findViewById(R.id.imageView1);
imageView1.setImageBitmap((Bitmap) extras.get("data"));
}
}
}
}
private Uri getOutputMediaFile() throws IOException {
File mediaStorageDir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
"DayTwentyNine");
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
.format(new Date());
File mediaFile;
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
if (mediaFile.exists() == false) {
mediaFile.getParentFile().mkdirs();
mediaFile.createNewFile();
}
return Uri.fromFile(mediaFile);
}
}
In the manifest I have are the following:
uses-feature android:name="android.hardware.camera" android:required="false"
uses-permission android:name="android.permission.CAMERA"
uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
Here I have this peace of code that works fine the first function open the camera and take the picture and the second one place the image you took into an image view...
public void takePictu(View view) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, CAMERA_REQUEST);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if(requestCode == CAMERA_REQUEST && resultCode == RESULT_OK){
photo3 = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(photo3);
imageView.buildDrawingCache();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
photo3.compress(Bitmap.CompressFormat.JPEG, 100, baos); //bm is the bitmap object
byte[] b = baos.toByteArray();
encodedImage = android.util.Base64.encodeToString(b, android.util.Base64.DEFAULT);
}
}
I'm trying to save image taken from camera in my phone. It works but the quality of images is very bad.
First, for the intent, this is my code :
intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, CAMERA_REQUEST);
And for ativity result, I tried this :
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CAMERA_PICTURE)
{
if (resultCode == RESULT_OK)
{
bitmap = (Bitmap) data.getExtras().get("data");
String path = Images.Media.insertImage(getContentResolver(), bitmap, "", null);
Uri imageUri = Uri.parse(path);
}
Can you please help me to resolve this problem ?
If you want the image to be on disk, let the camera app do it. Add an EXTRA_OUTPUT Uri to your Intent, pointing to where you want the image to be stored.
package com.commonsware.android.camcon;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import java.io.File;
public class CameraContentDemoActivity extends Activity {
private static final int CONTENT_REQUEST=1337;
private File output=null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent i=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File dir=
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
output=new File(dir, "CameraContentDemo.jpeg");
i.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(output));
startActivityForResult(i, CONTENT_REQUEST);
}
#Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
if (requestCode == CONTENT_REQUEST) {
if (resultCode == RESULT_OK) {
Intent i=new Intent(Intent.ACTION_VIEW);
i.setDataAndType(Uri.fromFile(output), "image/jpeg");
startActivity(i);
finish();
}
}
}
}
(from this sample project)
The Uri needs to point to a place where the camera app can write, such as external storage.