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POAndroid: Taking a picture using camera intent and saving it to a java.io.File
 

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  1. POAndroid: Taking a picture using camera intent and saving it to a java.io.File
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    <p>I'm trying to get a picture from user and then send it to our server. I provide two options: choosing from gallery or taking a new picture using default camera in their phones.</p> <p>Gallery thing works correctly, I can get the photo they selected and send it without any problem. But in camera option, camera opens, takes a picture, saves it on SD card with the location I specified, no problem, but when it returns back to my application, I always get a NullPointerException and my application is forced to close. Here is what I do:</p> <pre><code>private String tempFilePath = ""; ... public void addPhotoUsingCamera() { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); tempFilePath = getOutputMediaFilePath(MEDIA_TYPE_IMAGE); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(tempFilePath))); startActivityForResult(intent, CAMERA_ACTIVITY_CODE); } </code></pre> <p>And then I use following to get the photo taken:</p> <pre><code>@Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { ... case CAMERA_ACTIVITY_CODE: if (resultCode == Activity.RESULT_OK) { picture = new File(tempFilePath); } break; ... } } </code></pre> <p>I also tried</p> <pre><code>Bitmap thumbnail = (Bitmap) data.getExtras().get("data"); ImageView image = (ImageView) findViewById(R.id.photoTaken); image.setImageBitmap(thumbnail); </code></pre> <p>inside <code>case CAMERA_ACTIVITY_CODE:</code> but no matter what I try I always get a NullPointerException in this part of code.</p> <p>There is the logcat info where line 202 corresponds to <code>case CAMERA_ACTIVITY_CODE:</code> part.</p> <pre><code>01-31 23:40:13.154: ERROR/AndroidRuntime(8009): Caused by: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=101, result=-1, data=null} to activity {com.ollaa.android/com.ollaa.android.share.ShareFinalScreen}: java.lang.NullPointerException 01-31 23:40:13.154: ERROR/AndroidRuntime(8009): Caused by: java.lang.NullPointerException 01-31 23:40:13.154: ERROR/AndroidRuntime(8009): at com.ollaa.android.share.ShareFinalScreen.onActivityResult(ShareFinalScreen.java:202) </code></pre> <p>Any help is greatly appreciated.</p> <p><strong>Note:</strong> I have declared all necessary permissions in AndroidManifest related to camera and SD card.</p> <p><strong>EDIT:</strong> I realized that tempFilePath does not last until camera activity returns to my app. I put the initialization for tempFilePath in my <code>onCreate</code> method but this time picture is not set when I try to reach it from an outside function other than <code>onActivityResult</code>. I feel like I do not know Java at all, when we change a class variable within a function, the changed value should be visible from all functions of that class right??</p>
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