private void addTemporaryTab() {
for (int i = 0; i < 3; i++) {
CharSequence title = null;
if (i == 0) title = "TAB ONE";
else if (i == 1) title = "TAB TWO";
else if (i == 2) title = "TAB THREE";
CheckedTextView tv = new CheckedTextView(getContext());
tv.setCheckMarkDrawable(null);
tv.setText(title);
tv.setGravity(Gravity.CENTER);
tv.setTextAppearance(getContext(), mTextApperance);
tv.setSingleLine(true);
tv.setEllipsize(TruncateAt.END);
tv.setTag(i);
tv.setChecked(i == 0);
if (mMode == MODE_SCROLL) {
tv.setPadding(mTabPadding, 0, mTabPadding, 0);
mTabContainer.addView(
tv,
new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT));
} else if (mMode == MODE_FIXED) {
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(0, LinearLayout.LayoutParams.MATCH_PARENT);
params.weight = 1f;
mTabContainer.addView(tv, params);
}
}
}
public void setCurrentItem(int position) {
if (mSelectedPosition != position) {
CheckedTextView tv = getTabView(mSelectedPosition);
if (tv != null) tv.setChecked(false);
}
mSelectedPosition = position;
CheckedTextView tv = getTabView(mSelectedPosition);
if (tv != null) tv.setChecked(true);
animateToTab(position);
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
if (mListener != null) mListener.onPageScrolled(position, positionOffset, positionOffsetPixels);
CheckedTextView tv_scroll = getTabView(position);
CheckedTextView tv_next = getTabView(position + 1);
if (tv_scroll != null && tv_next != null) {
int width_scroll = tv_scroll.getWidth();
int width_next = tv_next.getWidth();
float distance = (width_scroll + width_next) / 2f;
int width = (int) (width_scroll + (width_next - width_scroll) * positionOffset + 0.5f);
int offset =
(int)
(tv_scroll.getLeft()
+ width_scroll / 2f
+ distance * positionOffset
- width / 2f
+ 0.5f);
updateIndicator(offset, width);
}
}
private void notifyDataSetChanged() {
mTabContainer.removeAllViews();
PagerAdapter adapter = mViewPager.getAdapter();
final int count = adapter.getCount();
if (mSelectedPosition > count) mSelectedPosition = count - 1;
for (int i = 0; i < count; i++) {
CharSequence title = adapter.getPageTitle(i);
if (title == null) title = "NULL";
CheckedTextView tv = new CheckedTextView(getContext());
tv.setCheckMarkDrawable(null);
tv.setText(title);
tv.setGravity(Gravity.CENTER);
tv.setTextAppearance(getContext(), mTextApperance);
tv.setSingleLine(true);
tv.setEllipsize(TruncateAt.END);
tv.setOnClickListener(this);
tv.setTag(i);
if (mTabRippleStyle > 0) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
tv.setBackground(new RippleDrawable.Builder(getContext(), mTabRippleStyle).build());
else
tv.setBackgroundDrawable(
new RippleDrawable.Builder(getContext(), mTabRippleStyle).build());
}
if (mMode == MODE_SCROLL) {
tv.setPadding(mTabPadding, 0, mTabPadding, 0);
mTabContainer.addView(
tv,
new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT));
} else if (mMode == MODE_FIXED) {
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(0, LinearLayout.LayoutParams.MATCH_PARENT);
params.weight = 1f;
mTabContainer.addView(tv, params);
}
}
setCurrentItem(mSelectedPosition);
requestLayout();
}