ios - How to customise the UIPickerView height -


how customise height of uipickerview more 250 . have done following unable height given

 -(void)pickerview:(id)sender     {         pickerview=[[uipickerview alloc] initwithframe:cgrectmake(0,200,320,400)];         pickerview.transform = cgaffinetransformmakescale(0.75f, 0.75f);         pickerview.delegate = self;         pickerview.datasource = self;         pickerview.showsselectionindicator = yes;         pickerview.backgroundcolor = [uicolor lightgraycolor];         [pickerview selectrow:1 incomponent:0 animated:yes];        [self.view addsubview:pickerview];        // [contentview addsubview:pickerview];      }

here there 3 valid heights uipickerview (162.0, 180.0 , 216.0).

you can use cgaffinetransformmaketranslation , cgaffinetransformmakescale functions fit picker convenience.

example:

cgaffinetransform t0 = cgaffinetransformmaketranslation( 0,     pickerview.bounds.size.height/2 ); cgaffinetransform s0 = cgaffinetransformmakescale(1.0, 0.5); cgaffinetransform t1 = cgaffinetransformmaketranslation( 0,     pickerview.bounds.size.height/-2 ); pickerview.transform = cgaffinetransformconcat( t0,     cgaffinetransformconcat(s0, t1) );

the above code change height of picker view half , re-position exact (left-x1, top-y1) position.

refer more here. how change uipickerview height


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