如何將數組的值傳遞給另一個類？

我想傳遞一個數組值到另一個類的顏色到Android Studio中的FunFactsActivity。現在，我得到一個錯誤
setBackgroundColor(int) in View cannot be applied to (java.lang.String). relativeLayout.setBackgroundColor(mColorWheel.mColors[currentColor]);如何將數組的值傳遞給另一個類？

據我瞭解，我不能在一個int進入它，因爲它是一個字符串，但我只是想使顏色我已經有在該數組中，每隔幾秒鐘/間隔就會淡入線程中的relativeLayout背景，並且無法正確顯示。我究竟做錯了什麼？

FunFactsActivity.java

// update background color of relativeLayout every few seconds. 
private void updateColor() 
{ 
    final RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.relativeLayout); 
    int color = mColorWheel.getColor(); 
    runOnUiThread(new Runnable() 
    { 

     @Override 
     public void run() 
     { 

      if (currentColor > mColorWheel.mColors.length - 1) 
      { 
       currentColor = 0; 

      } 
      relativeLayout.setBackgroundColor(mColorWheel.mColors[currentColor]); 

      currentColor++; 

     }// end of run 
    }); 

}

ColorWheel.java

public class ColorWheel { 

    // Member variable (properties about the object) 
    public String[] mColors = { 
      "#39add1", 
      "#3079ab", 
      "#c25975", 
      "#e15258", 
      "#f9845b", 
      "#838cc7", 
      "#7d669e", 
      "#53bbb4", 
      "#e0ab18", 
      "#637a91", 
      "#f092b0", 
      "#b7c0c7", 
      "#FAEBD7", 
      "#00FFFF", 
      "#7FFFD4", 
      "#0000FF", 
      "#8A2BE2", 
      "#A52A2A", 
      "#DEB887", 
      "#5F9EA0", 
      "#7FFF00", 
      "#D2691E", 
      "#6495ED", 
      "#DC143C", 
      "#B8860B", 
      "#A9A9A9", 
      "#006400", 
      "#FF8C00", 
      "#8B0000", 
      "#FFD700", 
      "#FF69B4", 
      "#4B0082", 
      "#F08080", 
      "#90EE90", 
      "#87CEFA", 
      "#FF4500", 
      "#DA70D6", 
      "#FA8072", 
      "#9ACD32", 
      "#00FF7F", 
      "#4682B4", 
    }; 

    // Method (abilities: things the object can do) 
    public int getColor(){ 

     String color = ""; 
     // Randomly select a fact 
     Random randomGenerator = new Random(); // Construct a new Random number generator 
     int randomNumber = randomGenerator.nextInt(mColors.length); 

     color = mColors[randomNumber]; 
     int colorAsInt = Color.parseColor(color); 

     return colorAsInt; 
    } 
}

來源

2015-05-12 TheAmazingKnight

簡單的創建類ColorWheel的對象。像 'ColorWheel CW =新ColorWheel（）' 和訪問諸如 'cw.mColors [I]數組;' – Universe

你爲什麼不只是mColors'的'字符串數組更改爲int數組。例如＃39add1會變成0x39add1等 –

嘗試'relativeLayout.setBackgroundColor（Color.parseColor（mColorWheel.mColors [currentColor]））;' –

你ColorWheel類已經在getColor函數調用Color.parseColor。只需使用該功能，因爲它已獲得隨機顏色。

relativeLayout.setBackgroundColor(mColorWheel.getColor());

，或者如果你想使用mColors數組：上FunFactsActivity.java

relativeLayout.setBackgroundColor(Color.parseColor(mColorWheel.mColors[currentColor]));

來源

2015-05-12 23:22:02

沒有通過整個代碼去，但是在Android中，你要麼設置顏色時：

提供int這是對顏色ID的引用，例如：R.color.my_red
提供Color對象。在你的情況，如果你想爲十六進制值轉換爲Color，叫Color.parseColor("#000000")

來源

2015-05-12 23:14:17

如何將數組的值傳遞給另一個類？

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