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content/post/1fd6cc7df7cf4583a7543b0018b32494/index.zh-cn.md

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+author = "FlintyLemming"
+title = "【归档】iOS 原生 UIKit 开发处理键盘遮挡输入框问题"
+slug = "1fd6cc7df7cf4583a7543b0018b32494"
+date = "2020-01-16"
+description = ""
+categories = ["Apple", "Coding"]
+tags = ["UIKit", "Swift"]
+image = "https://hf-public-source.mitsea.com:8840/images/blog/posts/2020/01/iOS%20%E5%8E%9F%E7%94%9F%20UIKit%20%E5%BC%80%E5%8F%91%E5%A4%84%E7%90%86%E9%94%AE%E7%9B%98%E9%81%AE%E6%8C%A1%E8%BE%93%E5%85%A5%E6%A1%86%E9%97%AE%E9%A2%98/slava-auchynnikau-B5nCJC-KpvA-unsplash.avif"
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+
+# 概要
+
+目前项目中遇到小屏手机中弹出键盘时挡住输入框的问题，网上的方法我看都是要么修改当前 scrollview 的 offset，要么是修改 .view.frame 的y轴位置。但该方法在页面纵幅较短的情况下会出现问题，所以我这边使用修改约束的方法。
+
+# 预想方法
+
+通过修改最上方的元素到顶端的距离来实现需求
+
+### Risks
+
+动画做起来的话，没有移动 frame 来的简单，不能用 animated: true，得要自己写。当然我这边 base 里别人写好了。
+
+### Open Questions
+
+也许移动 frame 可行，但我这边就是会出现之前视频上出现的那个问题，没有找到解决方法。
+
+不过修改约束也没有经过长时间的充分测试，还没发现什么隐性问题。
+
+# 核心步骤
+
+1. 在 xib 中找到约束，并拖入 view 文件中
+    
+    ![](https://hf-public-source.mitsea.com:8840/images/blog/posts/2020/01/iOS%20%E5%8E%9F%E7%94%9F%20UIKit%20%E5%BC%80%E5%8F%91%E5%A4%84%E7%90%86%E9%94%AE%E7%9B%98%E9%81%AE%E6%8C%A1%E8%BE%93%E5%85%A5%E6%A1%86%E9%97%AE%E9%A2%98/Untitled.avif)
+    
+2. 起个名字
+    
+    ```swift
+    @IBOutlet weak var topConstraint: NSLayoutConstraint!
+    ```
+    
+3. 在 ViewController 里计算应当修改的数值，并进行偏移
+    
+    ```swift
+    @objc private func keyboardWillAppear(notification: NSNotification) {
+        let keyboardRect = (notification.userInfo![UIResponder.keyboardFrameEndUserInfoKey] as! NSValue).cgRectValue
+        let keyboardHeight = keyboardRect.size.height
+        let screenHeight = self.view.frame.height
+        let scrollViewOffset = cala001030View.scrollView.contentOffset.y
+        let textFieldOffset = currentField.frame.origin.y - scrollViewOffset
+        let visibleHeight = screenHeight - keyboardHeight - currentField.frame.size.height
+           
+        self.isNeedResetViewFrame = visibleHeight < textFieldOffset
+        self.keyboardHeight = keyboardHeight
+            
+        let inputButtomToViewTop = currentField.frame.origin.y + currentField.frame.height + 30
+        let keyboardTopToViewTop = screenHeight - keyboardHeight
+        let shouldOffset = inputButtomToViewTop - keyboardTopToViewTop - scrollViewOffset
+           
+        if visibleHeight < textFieldOffset {
+            self.cala001030View.topConstraint.constant = -shouldOffset
+        }
+    }
+    ```
+    
+    关于偏移量是如何计算出来的，会单独开一个文章来说明
+    
+4. 键盘收回时，恢复原来的约束即可
+    
+    ```swift
+    @objc private func keyboardWillHide(notification: NSNotification) {
+        self.cala001030View.topConstraint.constant = 0
+    }
+    ```
+
+> Photo by [Slava Auchynnikau](https://unsplash.com/@auchynnikau?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash) on [Unsplash](https://unsplash.com/photos/the-sun-is-shining-through-the-clouds-over-the-mountains-B5nCJC-KpvA?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash)
+  

content/post/c48be530efa04e1f940ae854c7f4d452/index.zh-cn.md

@@ -4,7 +4,7 @@ title = "华硕 AX3000 Wi-Fi 6 路由器使用体验"
 slug = "c48be530efa04e1f940ae854c7f4d452"
 date = "2020-01-16"
 description = ""
-categories = ["Coding"]
+categories = ["Consumer"]
 tags = ["华硕", "路由器"]
 image = "https://hf-public-source.mitsea.com:8840/images/blog/posts/2020/01/%E5%8D%8E%E7%A1%95%20AX3000%20Wi-Fi%206%20%E8%B7%AF%E7%94%B1%E5%99%A8%E4%BD%BF%E7%94%A8%E4%BD%93%E9%AA%8C/title.avif"
 +++