Change settings text box placeholder text and pictures

If we want to achieve this effect, click on the corresponding text, placeholder text display highlighting, and other text boxes are not highlighted by the corresponding code

#import<UIKit/UIKit.h>@interfaceXmgtextfield:uitextfield/** Color*/@property (nonatomic,strong) Uicolor*Placeholdercolor;@end#import "XMGTextField.h"#import<objc/runtime.h>StaticNSString *ConstXmgpacerholdercolorkeypath=@"_placeholderlabel.textcolor";@implementationXmgtextfield////-(void) Drawplaceholderinrect: (cgrect) rect{//[Self.placeholder drawinrect:cgrectmake (0, ten, rect.size.width,) withattributes:@{ Nsforegroundcolorattributename:[uicolor Graycolor],//NSFontAttributeName:self.font//                                                       }];//}/** Runtime: Apple's official C-language library can do a lot of low-level operations (such as accessing hidden member variables \ member methods)*/-(void) awakefromnib{//set the cursor color to match the text colorSelf.tintcolor=Self.textcolor; //No first responders .[self resignfirstresponder];}/** * The current text box loses focus is called*/-(BOOL) resignfirstresponder{//Modify placeholder text color[self Setvalue:[uicolor graycolor] Forkeypath:xmgpacerholdercolorkeypath]; return[Super Resignfirstresponder];}/** * The current text box gathers focus will be called*/-(BOOL) becomefirstresponder{[self setValue:self.textColor forkeypath:xmgpacerholdercolorkeypath]; return[Super Becomefirstresponder];}-(void) Setplaceholdercolor: (Uicolor *) placeholdercolor{_placeholdercolor=Placeholdercolor; //Modify placeholder text color[self Setvalue:placeholdercolor Forkeypath:xmgpacerholdercolorkeypath];}@end

Change settings text box placeholder text and pictures