IOS text, keyboard, and button exercises

1. Fast texture

Ii. knowledge points

1. Text

2. keyboard

1> automatic hiding. Method 1: did end on exit event. Add the hidekeyboard method and call resignfirstresponder to give up the input object's right to obtain the input;

Method 2: Touch the background to hide the keyboard.

2> keyboard attribute, default, Number pad, email address, etc.

3. Button

1> Add a background image to the button and set it when loading the view,

-(Void) viewdidload {

// Set the button template when loading the view
Uiimage * normalimage = [[uiimage imagenamed: @ "whitebutton.png"] stretchableimagewithleftcapwidth: 12.0 topcapheight: 0.0];
Uiimage * pressedimage = [[uiimage imagenamed: @ "bluebutton.png"] stretchableimagewithleftcapwidth: 12.0 topcapheight: 0.0];
[Self. thebutton setbackgroundimage: normalimage forstate: uicontrolstatenormal];

[Super viewdidload];

[Self. thebutton setbackgroundimage: pressedimage forstate: uicontrolstatehighlighted];

}

2> createstory Method

Self. thestory. Text = [self. thetemplate. Text stringbyreplacingoccurrencesofstring: @ "<place>" withstring: Self. theplace. Text];
Self. thestory. Text = [self. thestory. Text stringbyreplacingoccurrencesofstring: @ "<verb>" withstring: Self. theverb. Text];
Self. thestory. Text = [self. thestory. Text stringbyreplacingoccurrencesofstring: @ "<number>" withstring: Self. thenumber. Text];