Uitextfield Learning Knowledge points

Uitwxtfield (input box): A control that is available in iOS to display text and edit text.

Core Features: Text editing

1. Create an input Box object

Uitextfield *TF = [[Uitextfield alloc] Initwithframe:cgrectmake (30, 100, 300, 40)];

2. Configuring related properties

Tf.backgroundcolor = [Uicolor Yellowcolor];

2.1 Setting prompt text (VIP)

Tf.placeholder = @ "Please enter your measurements";

2.2 Setting input Box contents (VIP)

Tf.text = @ "38";

2.3 Setting the text color

Tf.textcolor = [Uicolor Redcolor];

2.4 Set Text alignment-center alignment

Tf.textalignment = Nstextalignmentcenter;

2.5 Setting the font size

Tf.font = [Uifont boldsystemfontofsize:25];

2.6 Clears the contents of the input box when the input box is selected for the first time.

tf.clearsonbeginediting = YES;

2.7 Set Clear button mode

Tf.clearbuttonmode = uitextfieldviewmodewhileediting;

2.8 Setting the Input box style

Tf.borderstyle = Uitextborderstyleroundedrect;

2.9 Setting the input box can edit--Turn off user interaction (NO)

tf.userinteractionenabled = YES;

2.10 Setting the keyboard type--numeric keypad

Tf.keyboardtype = Uikeyboardtypenumberpad;

2.11 Setting the keyboard appearance style

Tf.keyboardappearance = Uikeyboardappearancedark;

2.12 Setting the input box contents to display in Safe mode

Tf.securetextentry = YES;

2.13 Agent (detects various behavior of input box) (VIP)

Tf.delegate = self;//Proxy specified as Appdelegate object

3. Add to Parent View

[Self.window ADDSUBVIEW:TF];

4. Release of ownership

[TF release];

Uitextfield Learning Knowledge points