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78 lines
2.3 KiB
78 lines
2.3 KiB
2 years ago
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#if !defined(__has_feature) || !__has_feature(objc_arc)
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#error "This file requires ARC support."
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#endif
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#import "GoogleMapsDemos/Samples/FrameRateViewController.h"
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#import <GoogleMaps/GoogleMaps.h>
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@interface FrameRateViewController ()
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@end
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@implementation FrameRateViewController {
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GMSMapView *_mapView;
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UITextView *_statusTextView;
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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GMSCameraPosition *camera =
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[GMSCameraPosition cameraWithLatitude:-33.868 longitude:151.2086 zoom:6];
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_mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
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self.view = _mapView;
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// Add a display for the current frame rate mode.
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_statusTextView = [[UITextView alloc] init];
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_statusTextView.frame = CGRectMake(0, 0, CGRectGetWidth(self.view.frame), 0);
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_statusTextView.text = @"";
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_statusTextView.textAlignment = NSTextAlignmentCenter;
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_statusTextView.backgroundColor = [UIColor colorWithWhite:1.0 alpha:0.8f];
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_statusTextView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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_statusTextView.editable = NO;
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[self.view addSubview:_statusTextView];
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[_statusTextView sizeToFit];
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// Add a button toggling through modes.
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self.navigationItem.rightBarButtonItem =
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[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemPlay
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target:self
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action:@selector(didTapNext)];
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[self updateStatus];
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}
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- (void)didTapNext {
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_mapView.preferredFrameRate = [self nextFrameRate];
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[self updateStatus];
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}
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+ (NSString *)nameForFrameRate:(GMSFrameRate)frameRate {
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switch (frameRate) {
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case kGMSFrameRatePowerSave:
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return @"PowerSave";
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case kGMSFrameRateConservative:
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return @"Conservative";
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case kGMSFrameRateMaximum:
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return @"Maximum";
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}
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}
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- (GMSFrameRate)nextFrameRate {
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switch (_mapView.preferredFrameRate) {
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case kGMSFrameRatePowerSave:
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return kGMSFrameRateConservative;
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case kGMSFrameRateConservative:
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return kGMSFrameRateMaximum;
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case kGMSFrameRateMaximum:
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return kGMSFrameRatePowerSave;
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}
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}
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- (void)updateStatus {
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_statusTextView.text =
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[NSString stringWithFormat:@"Preferred frame rate: %@",
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[self.class nameForFrameRate:_mapView.preferredFrameRate]];
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}
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@end
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