移動(dòng)辦公平臺(tái)查看附件時(shí)支持橫豎屏抗果。而我們的app為了布局問(wèn)題定页，沒(méi)有支持橫屏。我們就用下面的方法來(lái)使一個(gè)頁(yè)面支持橫豎屏酗电。
在支持橫豎屏的頁(yè)面viewWillDisappear中使用一下代碼：
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
AppDelegate * delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
delegate.allowRotate = 1;
}
- (void)viewWillDisappear:(BOOL)animated
{
AppDelegate * delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
delegate.allowRotate = 0;
if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {
SEL selector = NSSelectorFromString(@"setOrientation:");
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]];
[invocation setSelector:selector];
[invocation setTarget:[UIDevice currentDevice]];
int val = UIInterfaceOrientationPortrait;
[invocation setArgument:&val atIndex:2];
[invocation invoke];
}
}
接著在appDelegate.h文件中聲明
@property (nonatomic,assign)NSInteger allowRotate;
在appDelegate.m文件中添加一下方法：
//此方法會(huì)在設(shè)備橫豎屏變化的時(shí)候系統(tǒng)會(huì)調(diào)用
- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
// NSLog(@"方向 ============= %ld", _allowRotate);
if (_allowRotate == 1) {
return UIInterfaceOrientationMaskAll;
}else{
return (UIInterfaceOrientationMaskPortrait);
}
}
// 返回是否支持設(shè)備自動(dòng)旋轉(zhuǎn)
- (BOOL)shouldAutorotate
{
if (_allowRotate == 1) {
return YES;
}
return NO;
}
使其開(kāi)放系統(tǒng)的橫豎屏
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