java - Using a handler to delay a repeated task for a limited number of times -

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i have program draws bunch of red boxes in shape of spiral. have working, except cant figure out how delay process can see spiral forming. had code in loop , moved runnable while loop , 500ms delay. program meant stop when onclick or if runs 49 times.

i'm impatient see end result, because phone slows down when start spiral, , has no animation

runnable run = new runnable(){     @override     public void run(){         if(row>=0 && (dir==0 && (row==6 || grid[row+1][col]!=null)) ||                 (dir==1 && (col==6 || grid[row][col+1]!=null)) ||                 (dir==2 && (row==0 || grid[row-1][col]!=null)) ||                 (dir==3 && (col==0 || grid[row][col-1]!=null)))             dir++;         dir=dir%4;         switch(dir){             case 0: row++;break; //down             case 1: col++;break; //right             case 2: row--;break; //up             case 3: col--;break; //left         }         grid[row][col] = new imageview(t);         relativelayout.layoutparams layoutparams = new relativelayout.layoutparams(88, 88);         layoutparams.setmargins((width/2)-(450)+(88 * row) + (35 * (row + 1))+c, (height/2)-655+(88 * (col+1)) + (35 * (col + 1))+c ,0,0);         grid[row][col].setlayoutparams(layoutparams);         grid[row][col].setimageresource(r.drawable.redbox);         layout.addview(grid[row][col]);         x++;         c++;         c=c%7;         while(!stop && x<49)             h.postdelayed(run,500);     } };  public void spiral() {     c=0;     row=-1;     col=0;     dir =0;     run.run(); }

there number of ways this, including have done here. first thing remove while() loop @ end of runnable , instead have runnable post long count less 49. have posting same runnable multiple times each time run, triggered delivered @ same time main handler.


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