1. 打開開關(guān) ?----> ?開始布局

1 //1. 打開開關(guān) 2 [logoImageView setTranslatesAutoresizingMaskIntoConstraints:NO]; 3 4 //2. 開始布局 5 NSMutableArray *tmpConstraints = [NSMutableArray array]; 6 [tmpConstraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-70-[logoImageView(==70)]" options:0 metrics:nil views:NSDictionaryOfVariableBindings(logoImageView)]]; 7 [tmpConstraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"[logoImageView(==70)]" options:0 metrics:nil views:NSDictionaryOfVariableBindings(logoImageView)]]; 8 [tmpConstraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"|-40-[forgetPasswordBtn]" options:0 metrics:nil views:NSDictionaryOfVariableBindings(forgetPasswordBtn)]]; 9 [tmpConstraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[forgetPasswordBtn]-100-|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(forgetPasswordBtn)]]; 10 11 [self.view addConstraints:tmpConstraints];

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轉(zhuǎn)載于:https://www.cnblogs.com/GJ-ios/p/5483248.html

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