contentmode

iOS 中UIView contentMode 属性总结

由 坚强是说给别人听的谎言 提交于 2020-03-02 07:33:08
1.textAligment : 文字的水平方向的对齐方式 取值 NSTextAlignmentLeft = 0, // 左对齐 NSTextAlignmentCenter = 1, // 居中对齐 NSTextAlignmentRight = 2, // 右对齐 哪些控件有这个属性 一般能够显示文字的控件都有这个属性 UITextField UILabel UITextView ... (UILabel 默认是居中对齐的,并没有提供顶部对齐的方式-_-,可以使用如下的方式实现:) 比如设置Label 的numberOflines = 2， 可以直接将要显示的后面拼接个 "\n",这样无论文字够不够两行，文字都能够靠左上方对齐了 😎 for(int i=0; i<newLinesToPad; i++) self.text = [self.text stringByAppendingString:@"\n "]; 此方法更加简单粗暴，但是很有效。其方法是在文本后面加多一些\n。 需要注意的是，\n后还得加至少一个空格，否则多余的\n会被UILabel忽略。 从这一点上看，UILabel似乎又过于“聪明”了。 其他方式实现label顶端对齐可以参考:http://blog.devtang.com/2011/11/20/set-uilabel-text-align-top/ 2

Why is UIImageView.content mode ignored

由 本秂侑毒 提交于 2020-01-17 08:34:52
问题 I have a vertical UIStackView with three subviews and I want to center the content in all three of these subviews. I'm doing this all programmatically, not with the storyboard. I started by trying to use the storyboard and only adding the last arrangedSubview but that complicated things more. I've tried setting the '.contentMode` on the stack view itself, on each of the subviews, and all of them at the same time (as seen below). None of them have any affect - everything in these three

How do I autoresize an image, but at the top of the ImageView (programmatically in Xcode)?

由 走远了吗. 提交于 2019-12-24 08:59:08
问题 I have an imageView (say 100x100) that I want to fill with a (smaller) image (say 50x10) and I want the image to go at the top of the view , not at the middle of the view. If I use imageView.contentMode = UIViewContentModeScaleAspectFit; it fills the view with the image scaled at 100x20 (as expected) but in the middle of the view. Like this: +---------+ | | |i m a g e| <---my image (scaled) | | +---------+ <---my UIImageView If I set imageView.contentMode = UIViewContentModeTop |

Setting content mode for something besides UIImageView in iOS

由 寵の児 提交于 2019-12-11 03:36:02
问题 This answer shows the various effects of setting the content mode of a UIImageView . Since UIView also has a content mode setting in the Interface Builder, I want to know why setting it doesn't affect any subviews that are in it. Here is an example that I tried. The blue view is a UIView and the yellow view is a UILabel . But if I set the mode to Top for the UIView , the label just stays in the same place. Does content mode only work for UIImageViews ? If it doesn't work for UIViews , why is

Fit FULL image in 612x612 size for Instagram while keeping ratio

由 我只是一个虾纸丫 提交于 2019-12-06 12:41:41
问题 I want to be able to fit any FULL image in a 612x612 UIImage for Instagram integration in my app. But i don't want any of the sides cut or anything. I want the full image weather its in landscape or portrait to fit fully in a 612x612 image. What im after is just like you can set an image content mode to aspect fit in an image view im looking for a method that will resize to my desired size(612x612) while keep its exact ratio. The user selects an existing image through a uiimageview from there

Fit FULL image in 612x612 size for Instagram while keeping ratio

由 假如想象 提交于 2019-12-04 18:38:36
I want to be able to fit any FULL image in a 612x612 UIImage for Instagram integration in my app. But i don't want any of the sides cut or anything. I want the full image weather its in landscape or portrait to fit fully in a 612x612 image. What im after is just like you can set an image content mode to aspect fit in an image view im looking for a method that will resize to my desired size(612x612) while keep its exact ratio. The user selects an existing image through a uiimageview from there I want that image selected to be resized to 612 by 612 image while keeping the same ratio yet fully

What type of contents UIViewContentMode mode refers to?

由 走远了吗. 提交于 2019-11-30 19:14:08
According to the official doc on UIView about the contentMode property: The content mode specifies how the cached bitmap of the view’s layer is adjusted when the view’s bounds change What's defined the content in this definition? Is it a sub view or when we have define a background color for a view for example. My very first guess was that it should apply at least for the subviews in a view, but for example the following code snippet will not give me the expected result when playing with the UIViewContentModeCenter tag: UIView* redView = [[UIView alloc] initWithFrame:CGRectMake(80, 80, 150,

iOS SDK UIViewContentModeScaleAspectFit vs. UIViewContentModeScaleAspectFill

由 孤街醉人 提交于 2019-11-30 16:35:54
问题 I have an image that I would like to display in a UITableViewCell using the UITableViewCellStyleSubtitle style that provides a UIImageView , and two lines of text, plus an optional accessory view. However, when I set the content mode of the UIImageView to either of UIViewContentModeScaleAspectFit or UIViewContentModeScaleAspectFill , it appears to make no difference. Both of these content modes simply display the entire image, shifting the text to the right to make room for the image. Does

What type of contents UIViewContentMode mode refers to?

由 邮差的信 提交于 2019-11-30 03:38:45
问题 According to the official doc on UIView about the contentMode property: The content mode specifies how the cached bitmap of the view’s layer is adjusted when the view’s bounds change What's defined the content in this definition? Is it a sub view or when we have define a background color for a view for example. My very first guess was that it should apply at least for the subviews in a view, but for example the following code snippet will not give me the expected result when playing with the

iOS >> UIButton ImageView Property >> How to set Content Mode?

由 白昼怎懂夜的黑 提交于 2019-11-28 23:41:56
Is there a way to set a UIButton Image, BackgroundImage or ImageView Properties Content Mode Property? I've tried the direct approach (it didn't work, of course...): self.imageButton.imageView.contentMode = UIViewContentModeScaleAspectFit; It's nice to have a button with an image, but if there's no way to set it properly, it's not very handy... Using iOS7/8 with auto-layout, button.imageView doesn't get scaled when button is laid out, e.g. for iPhone 6: (lldb) po button <UIButton: 0x7fb4f501d7d0; frame = (0 0; 375 275); opaque = NO; autoresize = RM+BM; tag = 102; layer = <CALayer:
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