Cocoa PDFView does not resize

问题

I am attempting to create a custom subclass of the PDFView class in XCode. I add a PDFView instance to my window in InterfaceBuiler and create the following files for the subclass:

MyPDFView.h:

#import <Quartz/Quartz.h>

@interface MyPDFView : PDFView

-(void)awakeFromNib;
-(void)mouseDown:(NSEvent *)theEvent;

@end

MyPDFView.m:

#import "MyPDFView.h"

@implementation MyPDFView

-(void)awakeFromNib
{
    [self setAutoresizingMask: NSViewHeightSizable|NSViewWidthSizable|NSViewMinXMargin|NSViewMaxXMargin|NSViewMinYMargin|NSViewMaxYMargin];
    [self setAutoScales:YES];
}

- (void)mouseDown:(NSEvent *)theEvent
{
    unsigned long mask = [self autoresizingMask];
    NSLog(@"self autoresizingMask: %lu",mask);
    NSLog(@"NSViewHeightSizable: %lu",mask & NSViewHeightSizable);
    NSLog(@"NSViewWidthSizable: %lu",mask & NSViewWidthSizable);
    NSLog(@"self setAutoScales: %@",[self autoScales] ? @"YES" : @"NO");
    NSView* sv = [self superview];
    NSLog(@"superview autoresizesSubviews: %@",[sv autoresizesSubviews] ? @"YES" : @"NO");
    NSSize frame_dims = [self frame].size;
    NSLog(@"Frame: (%f,%f)",frame_dims.width,frame_dims.height);
    NSSize bounds_dims = [self bounds].size;
    NSLog(@"Bounds: (%f,%f)",bounds_dims.width,bounds_dims.height);
    NSSize sv_frame_dims = [sv frame].size;
    NSLog(@"Superview Frame: (%f,%f)",sv_frame_dims.width,sv_frame_dims.height);
    NSSize sv_bounds_dims = [sv bounds].size;
    NSLog(@"Superview Bounds: (%f,%f)",sv_bounds_dims.width,sv_bounds_dims.height);
    [super mouseDown:theEvent];
}
@end

However, despite setting everything appropriately and the subsequent NSLog statements that trigger when the PDFView area is clicked confirming that the object SHOULD be resizing, resizing the window does not resize the PDFView. Can anyone explain what I need to do to make the PDFView area scale with the size of the parent window?

The full code for this project that will allow you to build and run it is here:

https://github.com/samuelmanzer/MyPDFViewer

回答1:

I understand that your requirement is to resize the PDFView as you resize the parent window. There are two ways of achieving this

Setting The Autoresizing Mask
- Even though you have programatically set the Autoresizing mask, this isn’t effective as autolayout has been turned on for your views (When you create projects by default on Xcode 5, the xib files are by default set for autolayout ). Turn off the Autolayout feature by unchecking the “Use Autolayout” checkbox in the "Identity and Type" tab in the Utilities pane in Xcode for the MainMenu.xib file.
- Modify the MyPDFView's -(void)awakeFromNib by adding the line of code[self setFrame:[self superview].bounds];
Using Autolayout by defining layout constraints
- This can be done in the Interface Builder or through code programatically. Please do read Apple Cocoa Auto Layout Guide

来源：https://stackoverflow.com/questions/20037327/cocoa-pdfview-does-not-resize

标签

objective-c

cocoa

pdfview