Android封装好的类似于RadioGroup的底部导航或顶部导航、仿微信底部导航

<fan.likeviewgroupdemo.widget.BottomBar
android:layout_width="match_parent"
android:layout_height="56dp"
android:id="@+id/bb_bottom" />

mBottomBar = (BottomBar) findViewById(R.id.bb_bottom);

//添加导航条目
mBottomBar
.addItem(new BottomBarTab(MainActivity.this, R.drawable.ic_message_white_24dp, "消息"))
.addItem(new BottomBarTab(MainActivity.this, R.drawable.ic_account_circle_white_24dp, "联系人"))
.addItem(new BottomBarTab(MainActivity.this, R.drawable.ic_discover_white_24dp, "发现"));

//设置点击监听
mBottomBar.setOnTabSelectedListener(new BottomBar.OnTabSelectedListener() {

//position：当前选中的position， prePosition：上一个选中的position
@Override
public void onTabSelected(int position, int prePosition) {
//这里面可以根据position来操作
}

@Override
public void onTabUnselected(int position) {

}

@Override
public void onTabReselected(int position) {

}
});

tab_unselect

tab_select

BottomBarTab.java