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By: a guest on May 6th, 2012  |  syntax: None  |  size: 2.16 KB  |  hits: 24  |  expires: Never
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  1. ScrollView sliding from bottom to top, programmatically
  2. sv = (ScrollView)findViewById(R.id.scroll_text);
  3.        
  4. @Override
  5. public void onStart()
  6. {
  7.    super.onStart();
  8.    sv.post(new Runnable() {
  9.  
  10.         @Override
  11.         public void run() {
  12.             sv.fullScroll(ScrollView.FOCUS_DOWN);
  13.         }
  14.     });
  15.  
  16. }
  17.        
  18. @Override
  19. public void onWindowFocusChanged(boolean hasFocus)
  20. {
  21.     if (hasFocus)
  22.     {  
  23.  
  24.         int display_h = display.getHeight();
  25.         pos_y = display_h;
  26.         mScrollHandler.removeCallbacks(mUpdateScroll);
  27.         mScrollHandler.postDelayed(mUpdateScroll, 0);      
  28.  
  29.     }
  30.     else
  31.     {  
  32.  
  33.         mScrollHandler.removeCallbacks(mUpdateScroll);
  34.  
  35.     }
  36. }
  37.        
  38. private Runnable mUpdateScroll = new Runnable() {
  39.     public void run() {
  40.         pos_y = pos_y - 1;
  41.         sv.scrollTo(0, pos_y);
  42.         mScrollHandler.postDelayed(mUpdateScroll, 100);
  43.     }
  44. };
  45.        
  46. display = ((WindowManager) getSystemService(WINDOW_SERVICE)).getDefaultDisplay();
  47.     int display_h = display.getHeight();
  48.     pos_y = display_h;
  49.        
  50. @Override
  51. public void onWindowFocusChanged(boolean hasFocus)
  52. {
  53.     if (hasFocus)
  54.     {  
  55.  
  56.     RelativeLayout r_main = (RelativeLayout)findViewById(R.id.RelativeTables);          
  57.       RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)r_main.getLayoutParams();          
  58.       params.leftMargin = 0;
  59.       params.topMargin = pos_y;
  60.       r_main.setLayoutParams(params);
  61. mScrollHandler.removeCallbacks(mUpdateScroll);
  62.             mScrollHandler.postDelayed(mUpdateScroll, 0);      
  63.  
  64. }
  65. else
  66. {  
  67.  
  68.     mScrollHandler.removeCallbacks(mUpdateScroll);
  69.  
  70. }
  71.        
  72. private Runnable mUpdateScroll = new Runnable() {
  73. public void run() {
  74.     pos_y = pos_y - 1;
  75.     RelativeLayout r_main = (RelativeLayout)findViewById(R.id.RelativeTables);          
  76.           RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)r_main.getLayoutParams();          
  77.           params.leftMargin = 0;
  78.           params.topMargin = pos_y;
  79.           r_main.setLayoutParams(params);
  80.     mScrollHandler.postDelayed(mUpdateScroll, 100);
  81.  
  82. // the running cycle:
  83. if (pos_y<-display.getHeight()) {
  84.                     pos_y = display.getHeight();
  85.                 }
  86.  
  87.     }
  88. };
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