Zooming in and out of iOS fonts

1.-(void) Viewdidload first set the global variables of the font
Font=+;
2. Customize 2 buttons and add an event
// zoom in

_zoominbtn = [UIButton buttonwithtype: Uibuttontypecustom];

_zoominbtn. frame = CGRectMake (185, 7, + );

    _zoominbtn.backgroundcolor = [Uicolor clearcolor

    [_zoominbtn Setimage:[uiimage Imagenamed : @ "Buttonzoomin.png" "forstate :uicontrolstatenormal

    _zoominbtn. Tag = 220

[_zoominbtn addTarget:self Action:@selector(fontsizeadjustment:) forcontrolevents : UIControlEventTouchUpInside];

[Englishsetview Addsubview:_zoominbtn];

// zoom out

_zoomoutbtn = [UIButton buttonwithtype: Uibuttontypecustom];

_zoomoutbtn. frame = CGRectMake (265, 7, + );

_zoomoutbtn. BackgroundColor = [Uicolor clearcolor];

    _zoomoutbtn. Tag = 221

    [_zoomoutbtn Addtarget:self Action: @selector (fontsizeadjustment:) forcontrolevents: Uicontroleventtouchupinside

[_zoomoutbtn setimage: [UIImage imagenamed:@ "Buttonzoomout.png"] forstate: UIControlStateNormal];

[Englishsetview Addsubview:_zoomoutbtn];

  

3. Implementation methods

#pragma mark- font sizing Events

-(void) Fontsizeadjustment: (ID) sender

{

NSLog (@ "%f",font);

UIButton * btn = (UIButton *) sender;

if (btn = = _zoominbtn) {

if (font<) {

font = font+1;

[_zoomoutbtn setenabled:YES];

[_englishdetailtable reloaddata];

}

Else

{

uialertview * alert = [[uialertview alloc] initwithtitle:nil message:@ " "Delegate:nil cancelbuttontitle:@ " OK "Otherbuttontitles: nil];

[Alert show];

[_zoominbtn setenabled:NO];

}

}

Else

{

if (font>) {

font = font-1;

[_zoominbtn setenabled:YES];

[_englishdetailtable reloaddata];

}

Else

{

uialertview * alert = [[uialertview alloc] initwithtitle:nil message:@ " "Delegate:nil cancelbuttontitle:@ " OK "Otherbuttontitles: nil];

[Alert show];

[_zoomoutbtn setenabled:NO];

}

}

}

Zooming in and out of iOS fonts