learning ios 9

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  • 下拉刷新UIRefreshControl

  • 集成pictrues browser

    [UIView animateWithDuration:0.7 animations:^{
  btn.transform = CGAffineTransformMakeTranslation(0, btnH);
} completion:^(BOOL finished) {
[UIView animateKeyframesWithDuration:0.7 delay:1.0  options:UIViewKeyframeAnimationOptionCalculationModeLinear animations:^{
// btn.transform = CGAffineTransformMakeTranslation(0, -btnH);
 btn.transform = CGAffineTransformIdentity;
} completion:^(BOOL finished) {
  [btn removeFromSuperview];
}];
}];

  • 写图片进入相册 UIImageWriteToSavedPhotoAlbum(image,nil.nil,nil)

  • UIBarButtonItem的setTitleTextAttributes对Disabled颜色设置无效问题解决方法：将设置为disabled的语句放置在viewWillAppear方法中。

  • becomeFirstResponser 调起键盘

  • 模拟器不显示键盘 iOS Simulator -> Hardware -> Keyboard取消选择：“Connect Hardware Keyboard”