设置底部弹出菜单

一、步骤

1、引用依赖

implementation 'com.android.support:design:26.1.0'

2、创建Layout布局

bottomdailog.xml

3、创建BottomSheetDialog

BottomSheetDialog dialog = new BottomSheetDialog(this);

4、引入自定View

View dialogView = LayoutInflater.from(this).inflate(R.layout.bottomdailog, null);

5、引用控件

findViewById(R.id.more_login_exception)

6、控件的点击事件处理

.setOnClickListener（this）

7、View添加到BottomSheetDialog

dialog.setContentView(dialogView);

8、显示.show()

dialog.show();

二、完整代码

1、页面布局

xml version="1.0" encoding="utf-8"?>
xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/lv"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/more_login_exception"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:padding="10dp"
        android:text="登录异常"
        android:textSize="20sp" />

            android:layout_width="match_parent"
        android:layout_height="0.5dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:background="@color/colorHint" />

    <TextView
        android:id="@+id/more_contact_customer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:padding="10dp"
        android:text="联系客服"
        android:textSize="20sp" />

            android:layout_width="match_parent"
        android:layout_height="5dp"

        android:background="@color/colorHint" />

    <TextView
        android:id="@+id/tv_cancel"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:padding="10dp"
        android:text="关闭"
        android:textSize="20sp" />

2、方法调用

public void showDialog() {
    final BottomSheetDialog dialog = new BottomSheetDialog(this);
    View dialogView = LayoutInflater.from(this).inflate(R.layout.bottomdailog, null);

    TextView more_login_exception = dialogView.findViewById(R.id.more_login_exception);
    TextView more_contact_customer = dialogView.findViewById(R.id.more_contact_customer);
    TextView tv_cancel = dialogView.findViewById(R.id.tv_cancel);


    more_login_exception.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(LoginActivity.this, "登录异常", Toast.LENGTH_SHORT).show();
            dialog.dismiss();
        }
    });
    more_contact_customer.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(LoginActivity.this, "联系客服", Toast.LENGTH_SHORT).show();
            dialog.dismiss();
        }
    });

    tv_cancel.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            dialog.dismiss();
        }
    });

    dialog.setContentView(dialogView);
    dialog.show();
}