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What's the best online payment processing solution? [closed]

...g's case it's very easy to do, but still a lot harder than adding a PayPal button) and you start to build up a true picture. On the flip side, a service such as PayPal has very low setup costs (no fee to pay, and trivially easy to integrate), but relatively high transaction costs. It is great for hi...
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Execute AsyncTask several times

....execute("") everything is fine. But the app crash when I press an update button which calls again the AsyncTask(In case the network job didnt work). Cause then appears an Exception which says ...
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Is it necessary to explicitly remove event handlers in C#

... lives at least as long as the publisher - a form will last as long as the button which is on it, for example. It's worth knowing about this potential issue, but I think some people worry about it when they needn't, because they don't know which way round the references go. EDIT: This is to answer ...
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Selector on background color of TextView

... I can't make this work. I'm trying to apply it to a button and it does set the background to the default color of the selector, but it doesn't change to the shape defined in state_pressed. What could I be missing? I might open a new question, just in case you could point me in...
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The quest for the Excel custom function tooltip

... in the Function Arguments dialog box, which pops up when you press the fx button. But that's not what the original poster is asking about. – Govert Jul 10 '13 at 8:49 ...
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Best practices for Storyboard login screen, handling clearing of data upon logout

...ntroller RootViewController and connected with the first view, where login button live. Add also a Storyboard ID: "initialView". RootViewController.h #import <UIKit/UIKit.h> #import "LoginViewController.h" @protocol LoginViewProtocol <NSObject> - (void)dismissAndLoginView; @end @in...
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Why must a lambda expression be cast when supplied as a plain Delegate parameter

...GridView, ping them, set the resulting icons to green or red, and reenable buttons on the form. Yes, it is a "parallel.for" in a backgroundworker. Yes it is a LOT of invoking overhead, but its negligible for short lists, and much more compact code. ...
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When to call activity context OR application context?

... is limited. They implement an inner class (e.g., an OnClickListener for a Button in an Activity) and need a Context. Rather than using MyActivity.this to get at the outer class' this, they use getApplicationContext() or getBaseContext() to get a Context object. You only use getApplicationContext()...
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Detect if the app was launched/opened from a push notification

... has the app open within the app switcher (i.e. by double tapping the home button while the app is in the foreground) and then receives a push notification. In this case only didReceiveRemoteNotification:inactive is called, and neither WillEnterForeground nor didFinishLaunching gets called so you n...
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Remove non-ascii character in string

...haracters and anything out of the ASCII set. Click "Run this code snippet" button to test. There is some new javascript coming down the pipe so in the future (2020+?) you may have to do \u{FFFFF} but not yet console.log("line 1\nline2 \n\ttabbed\nF̸̡̢͓̳̜̪̟̳̠̻̖͐̂̍̅̔̂͋͂͐l̸͗...