$ git ls-tree fb3a8bdd0ce
100644 blob 63c918c667fa005ff12ad89437f2fdc80926e21c .gitignore
100644 blob 5529b198e8d14decbe4ad99db3f7fb632de0439d .mailmap
100644 blob 6ff87c4664981e4397625791c8ea3bbb5f2279a3 COPYING
040000 tree 2fb783e477100ce076f6bf57e4a6f026013dc745 Documentation
100755 blob 3c0032cec592a765692234f1cba47dfdcc3a9200 GIT-VERSION-GEN
100644 blob 289b046a443c0647624607d471289b2c7dcd470b INSTALL
100644 blob 4eb463797adc693dc168b926b6932ff53f17d0b1 Makefile
100644 blob 548142c327a6790ff8821d67c2ee1eff7a656b52 README
...
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我知道最后3个八位数字是文件模式,但前3位是什么?我在git用户手册中找不到它.
这样的事情在调试时让我发疯:
(lldb) p self.bounds
error: unsupported expression with unknown type
error: unsupported expression with unknown type
error: 2 errors parsing expression
(lldb) p (CGRect)self.bounds
error: unsupported expression with unknown type
error: unsupported expression with unknown type
error: C-style cast from '<unknown type>' to 'CGRect' is not allowed
error: 3 errors parsing expression
(lldb) p [self bounds]
error: 'bounds' has unknown return type; cast the call to its declared return type
error: 1 errors parsing expression
(lldb) p (CGRect)[self bounds]
(CGRect) …Run Code Online (Sandbox Code Playgroud) LLDB是否有便利变量?如果是这样,我该如何使用它们?如果不是,是否有类似的东西可以使用?
参考:http://software.intel.com/sites/products/documentation/hpc/atom/application/debugger/commands143.html
既然我们可以从远程Shell中检查sqlite3数据库,是否可以检查adb shell中的SharedPreferences?因为在调试时从命令行检查和操作SharedPreferences会更方便.
或者以另一种方式,在什么文件中保存SharedPreferences,以及如何查看和修改这些文件?
为什么CSS属性overflow:scroll;不起作用<td>,虽然overflow:hidden;效果很好?
<table border="1" style="table-layout:fixed; width:100px">
<tr>
<td style="overflow:scroll; width:50px;">10000000000000000000000000000000000</td>
<td>200</td>
<td>300</td>
</tr>
</table>
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获取托管对象之间的区别是什么
- (NSManagedObject *)objectRegisteredForID:(NSManagedObjectID *)objectID
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和
- (NSManagedObject *)existingObjectWithID:(NSManagedObjectID *)objectID error:(NSError **)error
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什么是"注册"对象?"已注册"对象和"未注册"对象之间有什么区别?
kCAFillModeBackwards
当动画完成时,接收器将值固定在零到零之前.
"在零到零之前夹紧值"的含义是什么?一个简单的例子将不胜感激.
在我的UIScrollView子类中,我正在观察帧更改:
[self addObserver:self forKeyPath:@"frame" options:0 context:NULL];
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我的observeValueForKeyPath:ofObject:change:context:实现如下:
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (object == self && [keyPath isEqualToString:@"frame"]) {
[self adjustSizeAndScale];
}
if ([UIScrollView instancesRespondToSelector:@selector(observeValueForKeyPath:ofObject:change:context:)]) {
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context]; // Exception
}
}
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但是这个代码我得到了异常:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '<WLImageScrollView: 0x733a440; baseClass = UIScrollView; frame = (0 0; 320 416); clipsToBounds = YES; layer = <CALayer: 0x7346500>; contentOffset: {0, 0}>: An -observeValueForKeyPath:ofObject:change:context: message was received but not …Run Code Online (Sandbox Code Playgroud) 我已经尝试了所有可能的字段,但无法找到调用函数的次数.
此外,我没有得到Self和# Self.这两个数字是什么意思?
我有一个框架,我只想在Debug配置下链接,即,我必须确保它在Release配置下没有链接.我怎样才能做到这一点?
ios ×3
lldb ×2
xcode ×2
adb ×1
android ×1
core-data ×1
css ×1
css-tables ×1
git ×1
git-ls-tree ×1
html ×1
html-table ×1
instruments ×1
iphone ×1
macos ×1
objective-c ×1
profiling ×1
scroll ×1