modify onRestoreInstanceState NullPointerException

[po1arbear]

modify NullPointerException in SlidingTabLayout at line 343 "getWidth()"
see #333 #384

[AllenWen]

可惜作者不活跃了

[zhaozhenqiang]

继承父类 @OverRide
protected void onRestoreInstanceState(Parcelable state) {
if (state instanceof Bundle) {
Bundle bundle = (Bundle) state;
int position = bundle.getInt("mCurrentTab");
mLogger.info("tag_count", "" + this.getTabCount() + "position:" + position);
if (position >= this.getTabCount()) {
mLogger.info("position > tag_count", "重置current为0");
bundle.putInt("mCurrentTab", 0);
}
}
super.onRestoreInstanceState(state);
mLogger.info("tag_count", "" + this.getTabCount());
}