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How to scroll to the bottom of a UITableView on the iPhone before the view appears
... Though this is perfect answer, as we don't need to do calculation for how many cells, height of tableview etc.. BUT I would point that we need to call this before reloading the tableview... It won't work if we write this after [table reloadData];
– Fahim Parkar
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Making the iPhone vibrate
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From "iPhone Tutorial: Better way to check capabilities of iOS devices":
There are two seemingly similar functions that take a parameter kSystemSoundID_Vibrate:
1) AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);
2) AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
Bot...
How do I change the title of the “back” button on a Navigation Bar
... target:nil
action:nil];
[[self navigationItem] setBackBarButtonItem:newBackButton];
[newBackButton release];
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How to write iOS app purely in C
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Damn, it took me a while but I got it:
main.c:
#include <CoreFoundation/CoreFoundation.h>
#include <objc/runtime.h>
#include <objc/message.h>
// This is a hack. Because we are writing in C, we cannot out and include
// <UIKit/UIKit.h>, as that uses Objective-C construc...
What is an SSTable?
In BigTable/GFS and Cassandra terminology, what is the definition of a SSTable?
4 Answers
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Notifier 通知扩展：功能强大的Android通知管理工具，支持通知通道、意图、...
...闹钟。此函数在闹钟时间到期之前第二次调用，由计时器控制。这会调整现有闹钟，使其不会被触发。当应用程序（主动）关闭时，闹钟时间会再次调整。
您可能认为在应用程序关闭时创建闹钟就足够了。然而，这还不够。如...
How to create custom easing function with Core Animation?
I am animating a CALayer along a CGPath (QuadCurve) quite nicely in iOS. But I'd like to use a more interesting easing function than the few provided by Apple (EaseIn/EaseOut etc). For instance, a bounce or elastic function.
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How to write a large buffer into a binary file in C++, fast?
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This did the job (in the year 2012):
#include <stdio.h>
const unsigned long long size = 8ULL*1024ULL*1024ULL;
unsigned long long a[size];
int main()
{
FILE* pFile;
pFile = fopen("file.binary", "wb");
for (unsigned long long j = 0; j < 1024; ++j){
/...
Flatten nested dictionaries, compressing keys
Suppose you have a dictionary like:
28 Answers
28
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Can I disable autolayout for a specific subview at runtime?
...nd then add it back may be decrease performance.Can we archive better solution?
– Nhat Dinh
Oct 22 '14 at 3:48
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