My app has null pointer exceptions when it tries to take a picture with the camera.
On clicked button method
public void onClick(View v) {
if (v.getId() == R.id.capture_btn) {
try {
//use standard intent to capture an image
Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//we will handle the returned data in onActivityResult
startActivityForResult(captureIntent, CAMERA_CAPTURE);
}
catch(ActivityNotFoundException anfe){
}
}
}
On onActivityResult method
on the activity result the image is sent to the crop operation to re-size the image
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
//user is returning from capturing an image using the camera
if(requestCode == CAMERA_CAPTURE){
//get the Uri for the captured image
picUri = data.getData();
//carry out the crop operation
performCrop();
}
//user is returning from cropping the image
else if(requestCode == PIC_CROP){
//get the returned data
Bundle extras = data.getExtras();
//get the cropped bitmap
Bitmap thePic = extras.getParcelable("data");
//retrieve a reference to the ImageView
ImageView picView = (ImageView)findViewById(R.id.imageViewMemberRegistration);
//display the returned cropped image
picView.setImageBitmap(thePic); // Line 99
}
}
}
performCrop This part helps to performs a crop operation , resize the image size and return the new size
private void performCrop(){
try {
//call the standard crop action intent (the user device may not support it)
Intent cropIntent = new Intent("com.android.camera.action.CROP");
//indicate image type and Uri
cropIntent.setDataAndType(picUri, "image/*");
//set crop properties
cropIntent.putExtra("crop", "true");
//indicate aspect of desired crop
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
//indicate output X and Y
cropIntent.putExtra("outputX", 256);
cropIntent.putExtra("outputY", 256);
//retrieve data on return
cropIntent.putExtra("return-data", true);
//start the activity - we handle returning in onActivityResult
startActivityForResult(cropIntent, PIC_CROP);
}
catch(ActivityNotFoundException anfe){
}
}
Below is the logcat:
09-11 17:56:46.194: E/AndroidRuntime(1293): Caused by: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=2, result=-1, data=Intent { act=inline-data (has extras) }} to activity {com.mobile.ppp/com.mobile.ppp.RegisterMember}: java.lang.NullPointerException
09-11 17:56:46.194: E/AndroidRuntime(1293): at android.app.ActivityThread.deliverResults(ActivityThread.java:3020)
09-11 17:56:46.194: E/AndroidRuntime(1293): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2546)
09-11 17:56:46.194: E/AndroidRuntime(1293): ... 12 more
09-11 17:56:46.194: E/AndroidRuntime(1293): Caused by: java.lang.NullPointerException
09-11 17:56:46.194: E/AndroidRuntime(1293): at com.mobile.ppp.RegisterMember.onActivityResult(RegisterMember.java:99)
09-11 17:56:46.194: E/AndroidRuntime(1293): at android.app.Activity.dispatchActivityResult(Activity.java:4108)
09-11 17:56:46.194: E/AndroidRuntime(1293): at android.app.ActivityThread.deliverResults(ActivityThread.java:3016)
09-11 17:56:46.194: E/AndroidRuntime(1293): ... 13 more
The line 99 point to this
99: picView.setImageBitmap(thePic);
