Android Floating Action Menu 简单应用

原文：https://www.viralandroid.com/2016/02/android-floating-action-menu-example.html

build.gradle

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    
    compile 'com.android.support:appcompat-v7:27.1.0'
    compile 'com.android.support:recyclerview-v7:27.1.0'
    compile 'com.android.support.constraint:constraint-layout:1.1.2'
    compile 'com.android.support:design:27.1.1'

    compile 'com.github.clans:fab:1.6.4'
}

XML Layout File

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:fab="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.github.clans.fab.FloatingActionMenu
        android:id="@+id/material_design_android_floating_action_menu"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="11dp"
        android:layout_marginLeft="11dp"
        android:layout_marginRight="11dp"
        fab:menu_animationDelayPerItem="55"
        fab:menu_backgroundColor="@android:color/transparent"
        fab:menu_buttonSpacing="0dp"
        fab:menu_colorNormal="#da3c2f"
        fab:menu_colorPressed="#dc4b3f"
        fab:menu_colorRipple="#99d4d4d4"
        fab:menu_fab_label="Floating Action Menu"
        fab:menu_fab_size="normal"
        fab:menu_icon="@drawable/fab_add"
        fab:menu_labels_colorNormal="#333"
        fab:menu_labels_colorPressed="#444"
        fab:menu_labels_colorRipple="#66efecec"
        fab:menu_labels_cornerRadius="3dp"
        fab:menu_labels_ellipsize="none"
        fab:menu_labels_hideAnimation="@anim/fab_slide_out_to_right"
        fab:menu_labels_margin="0dp"
        fab:menu_labels_maxLines="-1"
        fab:menu_labels_padding="8dp"
        fab:menu_labels_position="left"
        fab:menu_labels_showAnimation="@anim/fab_slide_in_from_right"
        fab:menu_labels_showShadow="true"
        fab:menu_labels_singleLine="false"
        fab:menu_labels_textColor="#f2f1f1"
        fab:menu_labels_textSize="15sp"
        fab:menu_openDirection="up"
        fab:menu_shadowColor="#66aff198"
        fab:menu_shadowRadius="4dp"
        fab:menu_shadowXOffset="1dp"
        fab:menu_shadowYOffset="4dp"
        fab:menu_showShadow="true">

        <com.github.clans.fab.FloatingActionButton
            android:id="@+id/material_design_floating_action_menu_item1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_action_send"
            fab:fab_label="Menu Item 1"
            fab:fab_size="mini" />

        <com.github.clans.fab.FloatingActionButton
            android:id="@+id/material_design_floating_action_menu_item2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_action_photo"
            fab:fab_label="Menu Item 2"
            fab:fab_size="mini" />

        <com.github.clans.fab.FloatingActionButton
            android:id="@+id/material_design_floating_action_menu_item3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_action_edit"
            fab:fab_label="Menu Item 3"
            fab:fab_size="mini" />
    </com.github.clans.fab.FloatingActionMenu>
</RelativeLayout>

Java Activity File

package viralandroid.com.androidmaterialdesigntutorial;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

import com.github.clans.fab.FloatingActionButton;
import com.github.clans.fab.FloatingActionMenu;

public class MaterialDesignFloatingActionMenu extends AppCompatActivity {

    FloatingActionMenu materialDesignFAM;
    FloatingActionButton floatingActionButton1, floatingActionButton2, floatingActionButton3;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.material_design_floating_action_menu);

        materialDesignFAM = findViewById(R.id.material_design_android_floating_action_menu);
        floatingActionButton1 = findViewById(R.id.material_design_floating_action_menu_item1);
        floatingActionButton2 = findViewById(R.id.material_design_floating_action_menu_item2);
        floatingActionButton3 = findViewById(R.id.material_design_floating_action_menu_item3);

        floatingActionButton1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                //TODO

            }
        });
        floatingActionButton2.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                //TODO

            }
        });
        floatingActionButton3.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                //TODO

            }
        });
    }
}

运行错误:

com.github.clans.fab.FloatingActionButton cannot be cast to android.support.design.widget.FloatingAction

导入包应该是：

import com.github.clans.fab.FloatingActionMenu;
import com.github.clans.fab.FloatingActionButton;

不应该有：

import  android.support.design.widget.FloatingAction