Hello Can i use English String in this view？ #1

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1. 183801597

   changed the title [-]Hello Can i use [/-] [+]Hello Can i use English String in this view？[/+] on Nov 9, 2016
2. AndroidMsky commented on Nov 10, 2016

   

   AndroidMsky

   on Nov 10, 2016

   Owner

   More actions

   No，you cant ， it just works for NUMBER，it may supported forover，Thank you。
3. TsaiYongChuan commented on Jan 9, 2019

   

   TsaiYongChuan

   on Jan 9, 2019

   More actions

   修改了一下 , 支持其他字符, 防止非数字报错的情况 , 并且不为数字不滚动

   @SuppressLint("AppCompatCustomView")
   public class RandomTextView extends TextView {
   //高位快
   public static final int FIRSTF_FIRST = 0;
   //高位慢
   public static final int FIRSTF_LAST = 1;
   //速度相同
   public static final int ALL = 2;
   //用户自定义速度
   public static final int USER = 3;
   //偏移速度类型
   private int pianyiliangTpye;

   //   滚动总行数 可设置
   private int maxLine = 10;
   //   当前字符串长度
   private int numLength = 0;
   //   当前text
   private String text;
   
   
   //滚动速度数组
   private int[] pianyilianglist;
   //总滚动距离数组
   private int[] pianyiliangSum;
   //滚动完成判断
   private int[] overLine;
   private Paint p;
   //第一次绘制
   private boolean firstIn = true;
   //滚动中
   private boolean auto = true;
   
   //text int值列表
   private ArrayList<Integer> arrayListText;
   
   //字体宽度
   private float f0;
   
   //基准线
   private int baseline;
   
   private int measuredHeight;
   
   
   public RandomTextView(Context context) {
       super(context);
   }
   
   public RandomTextView(Context context, AttributeSet attrs, int defStyleAttr) {
       super(context, attrs, defStyleAttr);
   }
   
   public RandomTextView(Context context, AttributeSet attrs) {
       super(context, attrs);
   }
   
   //按系统提供的类型滚动
   public void setPianyilian(int pianyiliangTpye) {
       this.text = getText().toString();
   
       pianyiliangSum = new int[text.length()];
       overLine = new int[text.length()];
       pianyilianglist = new int[text.length()];
       switch (pianyiliangTpye) {
           case FIRSTF_FIRST:
               for (int i = 0; i < text.length(); i++) {
                   pianyilianglist[i] = 20 - i;
               }
   
               break;
           case FIRSTF_LAST:
               for (int i = 0; i < text.length(); i++) {
                   pianyilianglist[i] = 15 + i;
               }
   
               break;
           case ALL:
               for (int i = 0; i < text.length(); i++) {
                   pianyilianglist[i] = 15;
               }
   
               break;
       }
   }
   
   //自定义滚动速度数组
   public void setPianyilian(int[] list) {
       this.text = getText().toString();
   
       pianyiliangSum = new int[list.length];
       overLine = new int[list.length];
       pianyilianglist = list;
   
   
   }
   
   
   @Override
   protected void onDraw(Canvas canvas) {
   
       Log.d("RandomTextView","draw");
       if (firstIn) {
           firstIn = false;
           super.onDraw(canvas);
           p = getPaint();
           Paint.FontMetricsInt fontMetrics = p.getFontMetricsInt();
           measuredHeight = getMeasuredHeight();
           Log.d("EEEEEEE", "onDraw: " + measuredHeight);
           baseline = (measuredHeight - fontMetrics.bottom + fontMetrics.top) / 2 - fontMetrics.top;
           float[] widths = new float[4];
           p.getTextWidths("9999", widths);
           f0 = widths[0];
           invalidate();
       }
       drawNumber(canvas);
   }
   
   
   //绘制
   private void drawNumber(Canvas canvas) {
   
       for (int j = 0; j < numLength; j++) {
           for (int i = 1; i < maxLine; i++) {
               if (i == maxLine - 1 && i * baseline + pianyiliangSum[j] <= baseline) {
                   pianyilianglist[j] = 0;
                   overLine[j] = 1;
                   int auto = 0;
                   for (int k = 0; k < numLength; k++) {
                       auto += overLine[k];
                   }
                   if (auto == numLength * 2 - 1) {
   
                       handler.removeCallbacks(task);
                       //修复停止后绘制问题
                       if (this.auto)
                           invalidate();
                       this.auto = false;
                   }
   
               }
               if (overLine[j] == 0){
                   //判断是否为数字 , 不是数字不滚动
                   if(arrayListText.get(j) == -1){
                       String chars = text.toString();
                       drawText(canvas, chars.charAt(j) + "", 0 + f0 * j,
                           baseline, p);
                   }else{
                       drawText(canvas, setBack(arrayListText.get(j), maxLine - i - 1) + "", 0 + f0 * j,
                           i * baseline + pianyiliangSum[j], p);
                   }
                   
               } else {
                   //定位后画一次就好啦
                   if (overLine[j] == 1) {
                       overLine[j]++;
                       String chars = text.toString();
                       drawText(canvas, chars.charAt(j) + "", 0 + f0 * j,
                           baseline, p);
                   }
   
               }
   
   
           }
   
   
       }
   }
   
   
   
   
   //设置上方数字0-9递减
   private int setBack(int c, int back) {
   
       if (back == 0) return c;
   
       back = back % 10;
   
       int re = c - back;
   
       if (re < 0) re = re + 10;
   
       return re;
   }
   
   //开始滚动
   public void start() {
   
       this.text = getText().toString();
       numLength = text.length();
   
       arrayListText = getList(text);
   
       handler.postDelayed(task, 17);
   
       auto = true;
   
   }
   
   public void setMaxLine(int l) {
       this.maxLine = l;
   }
   
   private ArrayList<Integer> getList(String s) {
   
       ArrayList<Integer> arrayList = new ArrayList<Integer>();
       for (int i = 0; i < s.length(); i++) {
           String ss = s.substring(i, i + 1);
   
           String numer = ss.replaceAll("[^(0-9)]", "-1");
           int a = Integer.parseInt(numer);
           arrayList.add(a);
       }
       return arrayList;
   
   }
   
   ;
   
   
   private static final Handler handler = new Handler();
   
   public void destroy() {
       auto = false;
       handler.removeCallbacks(task);
   
   }
   
   private final Runnable task = new Runnable() {
   
       public void run() {
           // TODO Auto-generated method stub
           if (auto) {
               Log.d("RandomTextView",""+auto);
               handler.postDelayed(this, 20);
   
               for (int j = 0; j < numLength; j++) {
                   pianyiliangSum[j] -= pianyilianglist[j];
   
               }
   
               invalidate();
           }
   
       }
   };
   
   
   @Override
   protected void onDetachedFromWindow() {
       super.onDetachedFromWindow();
       destroy();
   }
   
   private void drawText(Canvas mCanvas, String text, float x, float y, Paint p) {
   
       if (y >= -measuredHeight && y <= 2 * measuredHeight)
   
           mCanvas.drawText(text + "", x,
               y, p);
       else return;
   }
   

   }
4. AndroidMsky commented on Jan 9, 2019

   

   AndroidMsky

   on Jan 9, 2019

   Owner

   More actions

   很高兴你能参与项目，能不能麻烦你，fork这个项目到你的GitHub，然后提交一次你的更改。

   😄React with 😄1Reacted by 长青空手道
5. TsaiYongChuan commented on Jan 13, 2019

   

   TsaiYongChuan

   on Jan 13, 2019

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   已经提交了