添加表導航控制器視圖編程不工作

Question

當試圖添加表涵蓋視圖控制器的整個視圖像這樣：

func setConstraints(){ 

    self.view.addSubview(statisticsTable); 

    statisticsTable.leftAnchor.constraint(equalTo: self.view.leftAnchor).isActive = true; 
    statisticsTable.rightAnchor.constraint(equalTo: self.view.rightAnchor).isActive = true; 
    statisticsTable.bottomAnchor.constraint(equalTo: self.view.bottomAnchor).isActive = true; 
    statisticsTable.topAnchor.constraint(equalTo: self.view.topAnchor).isActive = true; 
} 

表犯規顯示。我是否正確地假設，通過導航控制器中的topAnchor，我們指的是視圖控制器視圖的頂部（這是導航欄結束的位置？）。這看起來很簡單，所以我很明顯在這裏明顯地忽略了某些東西謝謝。

Answer 1

，只要您在代碼中創建一個視圖，並試圖限制添加到視圖你必須記住設置translatesAutoresizingMaskIntoConstraints

func setConstraints(){ 

    self.view.addSubview(statisticsTable); 
    // try to add this before you add your constraints to the view 
    statisticsTable.translatesAutoresizingMaskIntoConstraints = false 

    statisticsTable.leftAnchor.constraint(equalTo: self.view.leftAnchor).isActive = true; 
    statisticsTable.rightAnchor.constraint(equalTo: self.view.rightAnchor).isActive = true; 
    statisticsTable.bottomAnchor.constraint(equalTo: self.view.bottomAnchor).isActive = true; 
    statisticsTable.topAnchor.constraint(equalTo: self.view.topAnchor).isActive = true; 
} 

當然