대화 상자에 여러 색상 추가 대화 메시지

Question

AlertDialog. 여러 텍스트 색상으로 메시지를 입력하고 싶습니다. 문자열 리소스에는 다음과 같은 내용이 있습니다. 그러나 메시지의 텍스트는 여전히 검은 색으로 표시됩니다. 메시지에

<string name="some_text">this is <font fgcolor="#ffff0000">red</font></string> 

나는

myAlert.setMessage(getResources().getString(R.string.some_text) 

Answer 1

// try this way 
1. custom class for set different color for different text. 

public class ColorSpannable extends ClickableSpan { 

     private int color = -1; 
     private float fontSize = -1; 
     private boolean isUnderline = true; 

     /** 
     * Constructor 
     */ 
     public ColorSpannable() { 
     } 

     /** 
     * Constructor 
     */ 
     public ColorSpannable(int color) { 
      this.color = color; 
     } 

     /** 
     * Constructor 
     */ 
     public ColorSpannable(float fontSize) { 
      this.fontSize = fontSize; 
     } 

     /** 
     * Constructor 
     */ 
     public ColorSpannable(boolean isUnderline) { 
      this.isUnderline = isUnderline; 
     } 

     /** 
     * Constructor 
     */ 
     public ColorSpannable(int color, boolean isUnderline) { 
      this.isUnderline = isUnderline; 
      this.color = color; 
     } 

     /** 
     * Constructor 
     */ 
     public ColorSpannable(int color, float fontSize) { 
      this.color = color; 
      this.fontSize = fontSize; 
     } 

     /** 
     * Overrides methods 
     */ 
     @Override 
     public void updateDrawState(TextPaint ds) { 

      if (color != -1) { 
       ds.setColor(color); 
      } 
      if (fontSize > 0) { 
       ds.setTextSize(fontSize); 
      } 

      ds.setUnderlineText(isUnderline); 

     } 

     @Override 
     public void onClick(View widget) { 

     } 
} 

2. custom method for apply different color for different text. 

public SpannableStringBuilder addClickablePart(String message,final ArrayList<String> changeTextList,ArrayList<String> changeTextColorList) { 

     String str = message; 
     SpannableStringBuilder ssb = new SpannableStringBuilder(Html.fromHtml(message)); 
     for(int i=0;i<changeTextList.size();i++){ 
      String colorHashValue; 
      if(changeTextColorList.size()>=i){ 
       colorHashValue = changeTextColorList.get(i); 
      }else{ 
       colorHashValue = "#ff0000"; 
      } 
      ssb.setSpan(new ColorSpannable(Color.parseColor(colorHashValue), false) { 
       @Override 
       public void onClick(View widget) { 

       } 
      }, str.indexOf(changeTextList.get(i)), str.indexOf(changeTextList.get(i)) + changeTextList.get(i).length(), 0); 

     } 
      return ssb; 
} 

3. how to use it 

     AlertDialog.Builder builder = new AlertDialog.Builder(this); 
     ArrayList<String> textList = new ArrayList<String>(); 
     ArrayList<String> textColorList = new ArrayList<String>(); 
     textList.add("red"); 
     textList.add("green"); 
     textList.add("blue"); 
     textList.add("yellow"); 
     textList.add("pink"); 

     textColorList.add("#ff0000"); 
     textColorList.add("#008000"); 
     textColorList.add("#0000ff"); 
     textColorList.add("#ffff00"); 
     textColorList.add("#ffc0cb"); 
     builder.setTitle("Multiple color text Dialog").setMessage(addClickablePart("this my custom text red green blue yellow pink",textList,textColorList)).setCancelable(false).setNeutralButton("Ok", new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int id) { 
      } 
     }); 
     AlertDialog alert = builder.create(); 
     alert.setCancelable(true); 
     alert.show(); 

here i gave you demo code you can also modify as per your requirement still any problem let me know will try to help.