I'm using the following code from another post to enable file handling within a HTML form input (file upload). It currently works perfectly with the camera and uploading from storage, however if I click on the file input, then not select an application or click back I receive the following message
Attempt to invoke virtual method 'android.content.ClipData android.content.Intent.getClipData()' on a null object reference
I think this has something to do with the file chooser expecting data but I am returning a null object as there is no image to upload via html form but don't know how to fix it. I tried the method here (Cancel a file upload in a Webview) but no luck. I get a complete Android crash using the emulator using; if (resultCode != RESULT_OK) etc which I think is on the right path.
Method in full;
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode != INPUT_FILE_REQUEST_CODE || mUploadMessage == null) {
super.onActivityResult(requestCode, resultCode, data);
return;
}
try {
String file_path = mCameraPhotoPath.replace("file:","");
File file = new File(file_path);
size = file.length();
}catch (Exception e){
Log.e("Error!", "Error while opening image file" + e.getLocalizedMessage());
}
if (data != null || mCameraPhotoPath != null) {
Integer count = 1;
ClipData images = null;
try {
images = data.getClipData();
}catch (Exception e) {
Log.e("Error!", e.getLocalizedMessage());
}
if (images == null && data != null && data.getDataString() != null) {
count = data.getDataString().length();
} else if (images != null) {
count = images.getItemCount();
}
Uri[] results = new Uri[count];
// Check that the response is a good one
if (resultCode == Activity.RESULT_OK) {
if (size != 0) {
// If there is not data, then we may have taken a photo
if (mCameraPhotoPath != null) {
results = new Uri[]{Uri.parse(mCameraPhotoPath)};
}
} else if (data.getClipData() == null) {
results = new Uri[]{Uri.parse(data.getDataString())};
} else {
for (int i = 0; i < images.getItemCount(); i++) {
results[i] = images.getItemAt(i).getUri();
}
}
}
mUploadMessage.onReceiveValue(results);
mUploadMessage = null;
}
}
I am using SDK 22, tools 25.0.0, minsdk 21, target 22.
I'm still learning Java so any heads up or examples to fix my issue would be greatly appreciated.
Thanks
