Android底部导航栏

今天简单写了一个底部导航栏，封装了一个库，用法比较简单

效果图

导入库

XML布局

使用

package com.kongqw.kqwbottomnavigation;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Toast;import com.kongqw.bottomnavigationlib.KqwBottomNavigation;import com.kongqw.bottomnavigationlib.OnBottomNavigationSelectedListener;import com.kongqw.bottomnavigationlib.ToastUtil;public class MainActivity extends AppCompatActivity implements OnBottomNavigationSelectedListener {
         private KqwBottomNavigation mKqwBottomNavigation;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mKqwBottomNavigation = (KqwBottomNavigation) findViewById(R.id.kbn);        mKqwBottomNavigation.setBottomNavigationSelectedListener(this);    }    @Override    public void onValueSelected(int index) {        ToastUtil.show(this, "index = " + index);    }}

API

• 添加底部按钮点击的监听

public void setBottomNavigationSelectedListener(OnBottomNavigationSelectedListener l)

点击后的回调如下

@Overridepublic void onValueSelected(int index) {    ToastUtil.show(this, "index = " + index);}

• 设置底部栏某个功能为选中状态

public void setBottomNavigationClick(int index)

我这里为了方便，只设定了0~3，依次代表底部四个按钮，可以使用枚举，只允许传入特定的值