Пример #1
0
 /**
  * 根据屏幕宽度计算得到view的宽度(用于适配GridLayout)
  *
  * @param columnCount 要显示的GridView的列数
  * @return view宽度(px)
  */
 public int getViewWidthByWindowWidth(int columnCount) {
   DisplayMetrics dm = new DisplayMetrics();
   activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
   float density = dm.density;
   int windth =
       (int)
           ((dm.widthPixels - getSidebarWidth() - (20 + 10 * columnCount) * density)
               / columnCount);
   Log.i(activity.getPackageName(), "===========计算得到的view-width:" + windth);
   return windth;
 }
Пример #2
0
 /**
  * 当Fragment改变时,改变左侧对应条目的背景颜色,并实现ScrollView自动滚动到焦点位置
  *
  * @param clickedView
  */
 public void setLeftTextViewBackgroundColorWhenFragmentChanged(String leftTextViewTag) {
   Fragment fragmentLeft =
       activity.getSupportFragmentManager().findFragmentById(R.id.fragment_left);
   View leftView = fragmentLeft.getView();
   View clickedLeftTextView = leftView.findViewWithTag(leftTextViewTag);
   ScrollView scrollView = (ScrollView) leftView.findViewById(R.id.scrollView_left);
   clickedLeftTextView.setFocusable(true);
   clickedLeftTextView.requestFocus(); // view获取焦点
   if (leftTextViewTag.equals("0") || leftTextViewTag.equals("1") || leftTextViewTag.equals("2"))
     scrollView.fullScroll(ScrollView.FOCUS_FORWARD); // 向前滚动
   else scrollView.fullScroll(ScrollView.FOCUS_DOWN); // 向后滚动
   Log.i(getClass().toString(), "clickedLeftTextView:" + clickedLeftTextView);
   setLeftTextViewBackgroundColor(clickedLeftTextView, Integer.parseInt(leftTextViewTag));
 }
Пример #3
0
 /**
  * 获取左边导航栏的宽度
  *
  * @return
  */
 private int getSidebarWidth() {
   View view = activity.findViewById(R.id.fragment_left_container);
   return AndroidUtil.getViewWidth(view);
 }