Develop Reference

Disable button in a Listview's row while getting response of a save?

Issue:
I have a Listview in Mainactivity. Each row of listview has two buttons say SET and RUN.
Pressing SET will take you to SET activity and if the user clicks save button in SET Activity, I need to disable the SET button in the corresponding row position of the listview in mainactivity.
So Far Done:
For that I have a refresh function on a onclicklistener to requery the list with updated values. How to call that refresh function without keypress in the Mainactivity or is there any other way?
Activity MAIN :
viewHolder.ButtonSET.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String title = v.getTag().toString();
if (title.equals("SET")) {
if (Integer.parseInt((String) viewHolder.TDNQTY.getText()) > 0) {
if(scanoverornot(pos)<=0) {
Intent s = new Intent(DN.this, SETActivity.class);
s.putExtra("position", pos);
s.putExtra("mode", "SET");
try{
startActivityForResult(s, saverequestcode);
// getContext().startActivity(s);
}
catch(Exception e){
Toast.makeText(getContext(),""+e,Toast.LENGTH_LONG).show();
}
}
}
}
}
});
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (data == null)
return;
switch (requestCode) {
case saverequestcode:
if (resultCode == RESULT_OK) {
String SItem= data.getStringExtra("SItem");
int SPos= data.getIntExtra("SPos", 0);
saved = 700;
Toast.makeText(getApplicationContext(), ""+ SItem+ SPos, Toast.LENGTH_LONG).show();
//btnvalidate.performClick();
}
}
}
Activity SET :
Intent sav = new Intent();
sav.putExtra("SItem", String.valueOf(itemno));
sav.putExtra("SPos", String.valueOf(pos));
setResult(RESULT_OK, sav);
finish();

You can use startActivityForResult to nail this purpose:
startActivityForResult(new Intent(this, DestinationActivity.class), MY_RESULT);
And then in your MainActivity:
public int MY_RESULT = 10;
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == MY_RESULT) {
if (resultCode == Activity.RESULT_OK) {
//refresh the list according to your logic
}
}
}
Don't forget to call setResult(Activity.RESULT_OK); when user clicks save button.
saveButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
setResult(Activity.RESULT_OK);
}
});

Issue Lines:
Have to add super.onActivityResult(requestCode, resultCode, data);
Removed switch case and used if condition for requestCode check
Solution:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (data == null)
return;
if (requestCode == saverequestcode) {
if (resultCode == Activity.RESULT_OK) {
String SItem = data.getStringExtra("SItem");
String SPos = data.getStringExtra("SPos");
Toast.makeText(getApplicationContext(), "Item :" + SItem + "Position :" + SPos, Toast.LENGTH_LONG).show();
}
if (resultCode == Activity.RESULT_CANCELED) {
//Any methods
}
}
else if (requestCode == importrequestcode){
}
}
Activity SET :
Intent sav = new Intent();
sav.putExtra("SItem", String.valueOf(itemno));
sav.putExtra("SPos", String.valueOf(pos));
setResult(Activity.RESULT_OK,sav);
finish();

CropActivity is not starting in onActivityResult inside Fragment

I am calling an intent to select an image and later to crop the image into aspect ratio(1,1), but when i run the app the gallery is opening but when i select the image it closes and gets back to the Fragment.
Below is the code of my Button's on click listener
mImageBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent galleryIntent = new Intent();
galleryIntent.setType("image/*");
galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(galleryIntent,
"SELECT IMAGE"), GALLERY_PICK);
}
});
this is the code for onActivityResult
public void onActivityResult(int requestCode, int resultCode, Intent
data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == GALLERY_PICK && resultCode == RESULT_OK){
Uri imageUri = data.getData();
CropImage.activity(imageUri)
.setAspectRatio(1, 1)
.setMinCropWindowSize(500, 500)
.start(getActivity());
Toast.makeText(SettingsActivity.this, imageUri,
Toast.LENGTH_LONG).show();
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
Uri resultUri = result.getUri();
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE)
{
Exception error = result.getError();
}
}
}
Crop activity is not starting and the app goes back to the fragment screen when i select the pic
Below is the code of MainActivity where i have used bottom navigation view and used OnActivity result as well
private void showPlacePicker() {
PlacePicker.IntentBuilder builder = new PlacePicker.IntentBuilder();
try {
startActivityForResult(builder.build(this), PLACE_PICKER_REQUEST);
} catch (Exception e) {
Log.e(TAG, e.getStackTrace().toString());
}
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent
data) {
if (requestCode == PLACE_PICKER_REQUEST) {
if (resultCode == RESULT_OK) {
----code---
}
}

I have used this library in one of my projects and in that I didn't explicitly create a image picker but instead let the library handle it for me. To do this,
in your code
mImageBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
CropImage.activity()
.setAspectRatio(1, 1)
.setMinCropWindowSize(500, 500)
.start(getContext());
}
});
Handle the result:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
Uri imageUri = result.getUri();
//handle the image
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
//handle error
} else if(resultCode == RESULT_CANCELED){
//handle cancel case
}
}
}
For more information

In case of using appcompact fragment we cannot use .start(getActivity()) to start the crop activity.
Instead of this use:
.start(getContext(), this)
Here is code look like in fragments:
CropImage.activity(uri).setGuidelines(CropImageView.Guidelines.ON).start(getContext(), this);

ActivityResult is more suitable :
#Override
public void onActivityResult(ActivityResult activityResult) {
if (activityResult.getResultCode() == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(activityResult.getData());
}
if (activityResult.getResultCode() == RESULT_OK) {
Uri resultUri = result.getUri();
} else if (activityResult.getResultCode() == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
Exception error = result.getError();
}
}
}

Cannot initiate a call from within an activity

I'm building an app that should allow you to scan a QR code (or barcode) and then calls the nubmer on the barcode/QR code. I'm guessing that you cannot launch a the activity which handles the calls from within another activity because I'm getting the following error:
No Activity found to handle Intent { act=android.intent.action.CALL
dat=tel:xxx=xxx=xxxx }
Here is my code
public void scanNow(View view) {
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
startActivityForResult(intent, 0);
}
#SuppressWarnings("deprecation")
public void onActivityResult(int requestCode, int resultCode, Intent intent){
if (requestCode == 0) {
if (resultCode == RESULT_OK) {
contents = intent.getStringExtra("SCAN_RESULT");
String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
try
{
Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse(contents));
startActivity(callIntent);
}
catch(Exception e)
{
messageBox("doStuff", e.getMessage());
}
// Handle successful scan
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
}
}

How to start a activity in another activity? Zxing

Is it possible to recover the result of the creation of a QR Code ZXing in my own Activity (my xml file)?

Not sure if this is what you are asking for, but you you can scan a barcode using ZXING from one of your activities like this:
try {
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("com.google.zxing.client.android.SCAN.SCAN_MODE", "QR_CODE_MODE");
intent.putExtra("com.google.zxing.client.android.SCAN.SCAN_MODE", "PRODUCT_MODE");
startActivityForResult(intent, 0);
}
catch (ActivityNotFoundException e) {
}
To do something with the barcode include this:
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");
Toast.makeText(this, contents, Toast.LENGTH_SHORT).show();
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
}
}
}
You need to have the ZXING barcode app installed on your device.

ZXing Library not providing Intent result

I'm using ZXing Library as a library to my Android project. However whenever a barcode is scanned the ZXing Capture activity doesn't provide the result to my activity, it just stands there as if the code had been scanned normally via the application.
My current code is:
discount.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View v) {
Intent intent = new Intent(DiscountActivity.this, CaptureActivity.class);
intent.setAction("com.google.xzing.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) {
Dialog dialog = new Dialog(this);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.discount_dialog);
dialog.show();
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
}
}
}

This code is wrong, and more complex than it needs to be. This is all you should be doing: http://code.google.com/p/zxing/wiki/ScanningViaIntent