IOS Uitextview Plus placeholder

Uitextview on how to add a similar to the Uitextfield placeholder, in fact, add a uilabel on Uitextview, and then realize

-(BOOL) TextView: (uitextview *) TextView shouldchangetextinrange: (nsrange) range Replacementtext: (nsstring *) Text This proxy method is possible.

The specific implementation is as follows:

[OBJC]View Plaincopy< param name= "allowfullscreen" value= "false" >

2. -(BOOL) TextView: ( Uitextview *) TextView shouldchangetextinrange:(nsrange) range replacementtext:( NSString *) Text
4. {
6. if  (![ Text isequaltostring:@ ""]) {
8. _label1. Hidden = YES;
10. }
14. if ([Text isequaltostring:@ "] && range. location = = 0 && range. length = = 1) {
16. _label1. Hidden = NO;
18. }
22. return   YES;
24. }

The description is as follows:

(1) _label1 is added to the Uitextview on the Uilabel

(2) [Text isequaltostring:@ ""] means the BACKSPACE key is entered

(3) Range.location = = 0 && Range.length = = 1 indicates the first character entered

The effect is as follows:

the original http://blog.csdn.net/chchong1234/article/details/24646719 thanks to bloggers for sharing ~