Android仿一点资讯收藏Toast动画效果

<div style="text-align: left;"><span style="font-family: Arial, Helvetica, sans-serif;"></span></div><pre name="code" class="java">public class CollectToast { 
  private static CollectToast toastCollectSucceed = null; 
  private Toast toast = null; 
  private TextView text; 
  private CollectToast() {} 
  /** 
   * 单例模式 
   * 
   * @return 
   */ 
  public static CollectToast createToast() { 
    if (toastCollectSucceed == null) { 
      toastCollectSucceed = new CollectToast(); 
    } 
    return toastCollectSucceed; 
  } 
  /** 
   * 显示Toast 
   * 
   * @param context 
   * @param root 
   * @param tvString 
   * @param result 是否成功 
   */ 
  public Toast showToast(Context context, ViewGroup root, String tvString, int duration, boolean result) { 
    toast = null; 
    int styleId = R.style.Animation_Toast; 
    if (toast == null) { 
      View layout = LayoutInflater.from(context).inflate(R.layout.toast_collect_layout, root); 
      text = (TextView) layout.findViewById(R.id.title_tv); 
      ImageView imageView = (ImageView) layout.findViewById(R.id.iv); 
      if (result) 
        imageView.setBackgroundDrawable(DrawableUtil.getImageDrawable(context, R.mipmap.doneicon_popup_textpage)); 
      else 
        imageView.setBackgroundDrawable(DrawableUtil.getImageDrawable(context, R.mipmap.close_popup_textpage)); 
      text.setText(tvString); 
      toast = new Toast(context); 
      toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0); 
      toast.setDuration(duration); 
      toast.setView(layout); 
      toast.show(); 
    } else { 
      text.setText(tvString); 
      toast.show(); 
    } 
    //通过反射给Toast设置动画 
    try { 
      Object mTN = null; 
      mTN = getField(toast, "mTN"); 
      if (mTN != null) { 
        Object mParams = getField(mTN, "mParams"); 
        if (mParams != null 
            && mParams instanceof WindowManager.LayoutParams) { 
          WindowManager.LayoutParams params = (WindowManager.LayoutParams) mParams; 
          params.windowAnimations = styleId; 
        } 
      } 
    } catch (Exception e) { 
      e.printStackTrace(); 
    } 
    return toast; 
  } 
  /** 
   * 反射字段 
   * 
   * @param object  要反射的对象 
   * @param fieldName 要反射的字段名称 
   * @return 
   * @throws NoSuchFieldException 
   * @throws IllegalAccessException 
   */ 
  private static Object getField(Object object, String fieldName) throws NoSuchFieldException, IllegalAccessException { 
    Field field = object.getClass().getDeclaredField(fieldName); 
    if (field != null) { 
      field.setAccessible(true); 
      return field.get(object); 
    } 
    return null; 
  } 
}</pre><br> 
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