SlidingTabLayout底部选项卡水平居中（系列2）

找到Android SlidingTabLayout源代码，在Android SlidingTabLayout源代码中有一个方法：
private void populateTabStrip();

这是谷歌官方实现的Android SlidingTabLayout添加底部选项卡Tab的代码，如果为了实现前文所述的将Tab均分水平位置空间，则需要修改此方法，在此方法中添加如下代码：LinearLayout.LayoutParams layoutParams= new LinearLayout.LayoutParams(0, LayoutParams.WRAP_CONTENT, 1.0f);
tabView.setLayoutParams(layoutParams);
最终将private void populateTabStrip()改进成这样：

private void populateTabStrip() {
final PagerAdapter adapter = mViewPager.getAdapter();
final View.OnClickListener tabClickListener = new TabClickListener();

for (int i = 0; i < adapter.getCount(); i++) {
View tabView = null;
TextView tabTitleView = null;

if (mTabViewLayoutId != 0) {
// If there is a custom tab view layout id set, try and inflate
// it
tabView = LayoutInflater.from(getContext()).inflate(mTabViewLayoutId, mTabStrip, false);
tabTitleView = (TextView) tabView.findViewById(mTabViewTextViewId);
}

if (tabView == null) {
tabView = createDefaultTabView(getContext());
}

if (tabTitleView == null && TextView.class.isInstance(tabView)) {
tabTitleView = (TextView) tabView;
}

tabTitleView.setText(adapter.getPageTitle(i));
tabView.setOnClickListener(tabClickListener);

//添加by Zhang Phil
LinearLayout.LayoutParams layoutParams= new LinearLayout.LayoutParams(0, LayoutParams.WRAP_CONTENT, 1.0f);
tabView.setLayoutParams(layoutParams);
//添加by Zhang Phil

mTabStrip.addView(tabView);
}
}