Develop Reference

saving and then displaying camera photo on application

I'm trying to make a android app that will take a picture from the camera and display it on the same screen next to the "take picture button". I've been trying to use a tutorial but it is not working. whenever I take the picture and press save, the picture app fails. Also I don't know if it would display the photo on screen if I saved it. However, I am not sure of this since it always breaks after I press save.
Does anybody have any suggestions to help me save and display the photo on screen?
Thanks
Here's my xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.pictureproject.MainActivity"
android:orientation ="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/hello_world" />
<Button
android:id="#+id/button_camera"
android:text="#string/button_camera"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<ImageView
android:id = "#+id/image_camera"
android:contentDescription="#string/image_cd_camera"
android:layout_width="fill_parent"
android:layout_height = "wrap_content"
/>
</LinearLayout>
and Heres my java:
package com.example.pictureproject;
import java.io.File;
import android.app.Activity;
import android.content.ContentResolver;
import android.view.View.OnClickListener;
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.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
private static String logtag ="CameraApp8";
private static int TAKE_PICTURE = 1;
private Uri imageUri;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button cameraButton = (Button)findViewById(R.id.button_camera);/*possibly button camera 1*/
cameraButton.setOnClickListener(cameraListener);
}
private OnClickListener cameraListener = new OnClickListener() {
public void onClick(View v){
takePhoto(v);
}
};
private void takePhoto(View v){
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
File photo = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),"picture.jpg");
imageUri = Uri.fromFile(photo);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, TAKE_PICTURE);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent){
super.onActivityResult(requestCode, resultCode, intent);
if(resultCode == Activity.RESULT_OK){
Uri selectedImage = imageUri;
getContentResolver().notifyChange(selectedImage, null);
ImageView imageView = (ImageView)findViewById(R.id.image_camera);
ContentResolver cr = getContentResolver();
Bitmap bitmap;
try{
bitmap = MediaStore.Images.Media.getBitmap(cr,selectedImage);
imageView.setImageBitmap(bitmap);
Toast.makeText(MainActivity.this, selectedImage.toString(),Toast.LENGTH_LONG).show();
}catch(Exception e){
Log.e(logtag,e.toString());
}
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}

try to add this code..
public class MyCameraActivity extends Activity {
private static final int CAMERA_REQUEST = 1888;
private ImageView imageView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.imageView = (ImageView)this.findViewById(R.id.imageView1);
Button photoButton = (Button) this.findViewById(R.id.button1);
photoButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(photo);
}
}
}

Unable to get result from ZXing barcode scanner

I am trying to implement barcode scanner activity in my Android application but I heard that it's not possible to do so without asking the user to install the ZXing bar code scanner.
So what I did is that I used the ZXing integrator class for initiating a scan here is my code. But I am unable to show the result in the two text views. I must mention that the scan is started and the result is shown in the barcode scanner window itself, but then nothing comes on the ScanCodeActivity layout which has two text views on it.
I also would like to know if it's possible to return the result from th eweb into my text views.
I used this link as reference:
http://code.tutsplus.com/tutorials/android-sdk-create-a-barcode-reader--mobile-17162
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;
public class ScanCodeActivity extends Activity {
private Button scan;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.scancodelayout);
scan= (Button)findViewById(R.id.scan_button);
Button scanBtn = (Button)findViewById(R.id.scan_button);
final TextView formatTxt = (TextView)findViewById(R.id.scan_format);
final TextView contentTxt = (TextView)findViewById(R.id.scan_content);
scanBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
IntentIntegrator scanIntegrator = new IntentIntegrator(ScanCodeActivity.this);
scanIntegrator.initiateScan();
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == 0) {
IntentResult scanningResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
if (resultCode == RESULT_OK) {
if (scanningResult != null) {
final TextView formatTxt = (TextView)findViewById(R.id.scan_format);
final TextView contentTxt = (TextView)findViewById(R.id.scan_content);
String scanContent = scanningResult.getContents();
String scanFormat = scanningResult.getFormatName();
Toast toast = Toast.makeText(this, "Content:" + scanContent + " Format:" + scanFormat , Toast.LENGTH_LONG);
formatTxt.setText("FORMAT: " + scanFormat);
contentTxt.setText("CONTENT: " + scanContent);
//we have a result
}
else{
Toast toast = Toast.makeText(getApplicationContext(),
"No scan data received!", Toast.LENGTH_SHORT);
toast.show();
}
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
Log.i("App","Scan unsuccessful");
}
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}

Remove the if (requestCode == 0) check from your onActivityResult() method similar to the example from the library's wiki page.
Note: You are checking for the wrong requestCode. The library uses 0x0000c0de (see the source) instead of 0.

Android Camera activity stays open

I'm trying to take a picture with my Android app but when I take the image, the camera display doesn't go away. The code I am using is below. I also used the SDK on Google's developer website SDK.
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Camera;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends Activity {
private static final int CAMERA_REQUEST = 1888;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mainButton = (Button)findViewById(R.id.mainBtn);
mainButton.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
//Intent userCreationIntent = new Intent(v.getContext(), SecondviewActivity.class);
//startActivity(userCreationIntent);
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
return false;
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
ImageView imageView = (ImageView)findViewById(R.id.imageView1);
imageView.setImageBitmap(photo);
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}

The problem is within your onTouchListener for the Button!
I just ran your code and changed the onTouchListener to a onClickListener for the Button instead and the code is working.
See my revised code here:
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends Activity {
private static final int CAMERA_REQUEST = 1888;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mainButton = (Button) findViewById(R.id.mainBtn);
mainButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent cameraIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
ImageView imageView = (ImageView) findViewById(R.id.imageView1);
imageView.setImageBitmap(photo);
}
}
}
I'm not precisely sure, why you're using the onTouchListener for a Button, but it's not working apparently - really weird behavior actually ;-)
EDIT: Just a small update. I tried to debug the code and if you use the onTouchListener instead of the onClickListener, when clicking on the button, you actually trigger 3 MotionEvents: MotionEvent.ACTION_DOWN, MotionEvent.ACTION_MOVE and MotionEvent.ACTION_UP.
Now the first event MotionEvent.ACTION_DOWN will trigger your intent to show the camera and when you click OK after you've taken a picture, the next MotionEvent MotionEvent.ACTION_MOVE is waiting in line to be triggered and this will send you to the camera activity once again. Now after taking one more picture and clicking OK, you return to your activity and now the last MotionEvent MotionEvent.ACTION_UP is waiting in line and triggers a 3rd call to the camera activity. After the last camera call, you will be able to get back to your activity without problems ;-)
Why the onClickListener doesn't do this, is because it handles a "full" click which could be MotionEvent.ACTION_DOWN, MotionEvent.ACTION_MOVE and MotionEvent.ACTION_UP and so all 3 events is happening in ONE click instead.
Hope this helps ;-)

This is happening because you are not attaching a path with the intent as to tell Android where to store the image. I had the same problem too.
Try the following code: ( I just added 4 lines )
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Camera;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends Activity {
private static final int CAMERA_REQUEST = 1888;
// Creating the Uri where Camera saves a picture each time
String imagePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/" + System.currentTimeMillis() + "_myCameraImage.jpg";
File imageFile = new File(imagePath);
imageUri = Uri.fromFile(imageFile);
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mainButton = (Button)findViewById(R.id.mainBtn);
mainButton.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
//Intent userCreationIntent = new Intent(v.getContext(), SecondviewActivity.class);
//startActivity(userCreationIntent);
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
return false;
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
ImageView imageView = (ImageView)findViewById(R.id.imageView1);
imageView.setImageBitmap(photo);
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
Before you copy and paste this code, make sure that you have necessary import statements in your code like import statements for File, Uri etc.
I strongly hope it will work now :)

Android Camera : Picture should not be stored locally but should be saved temporarily in the App

I am new to android and am trying to make an android app where the user can click an image and save it to a database . However i do not want the image to be stored locally in the gallery folder. Or everytime a picture is taken it saves itself in a self made directory on the phone and keeps replacing earlier pics .I donot want all pictures to be stored on the phone .
Below is my current code :
package com.example.camerastart;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
public class CameraMainActivity extends Activity
{
private static final int CAMERA_PIC_REQUEST = 2500;
private Button cam_button;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_camera_main);
cam_button = (Button) findViewById(R.id.button1);
cam_button.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);
// TODO Auto-generated method stub
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == CAMERA_PIC_REQUEST && resultCode == RESULT_OK)
{
Bitmap image = (Bitmap) data.getExtras().get("data");
ImageView imageview = (ImageView) findViewById(R.id.imageView1);
imageview.setImageBitmap(image);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_camera_main, menu);
return true;
}
}
any help will be appreciated

You can make a folder, and save all the images to this folder.
just remember to add .nomedia file to this folder, and then the gallery will not show those files

Zxing when qr code is scanned it reverts to menu

I have the zxing library imported into my project and the scanner works like a charm but when i scan a qr code it says Qr code found and goes back to the menu i had set up is there any way to show the result and set it to open the url
package com.Qrgolf.App;
import java.util.regex.Pattern;
import com.google.zxing.Result;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button scan = (Button) findViewById(R.id.SCANBUTTON);
scan.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
startActivityForResult(intent, 0);
}
});
};
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == 0) {
if (resultCode == RESULT_OK) {
String contents = intent.getStringExtra("SCAN_RESULT");
String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
// Handle successful scan
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
}
}
}
}

You should consider going back to your old questions and accepting answers if they were correct.
Also you need to change the onActivityResult() method to do whatever it is that you want to do with the resulting String from the QR.
here is an example:
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == 0) {
if (resultCode == RESULT_OK) {
String contents = intent.getStringExtra("SCAN_RESULT");
String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
// Handle successful scan
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(android.net.Uri.parse(contents));
startActivity(intent);
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
}
}
}