013 Android ActionFloatingButton悬浮按钮组件与Snackbar组件使用

1.导入ActionFloatingButton组件(点击下载按钮，安装组件)

2,.ImageView图片XML设置

<ImageView
        android:id="@+id/imageView3"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitXY"
        app:srcCompat="@mipmap/img1" />

3.ActionFloatingButton组件是悬浮在ImageView之上的

4.java后台代码

(1)XML布局

重点：

设置组件在屏幕的右下角(距底端20dp、右端20dp)

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

    <ImageView
        android:id="@+id/imageView3"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitXY"
        app:srcCompat="@mipmap/img1" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/floatingActionButton2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:clickable="true"
        android:layout_marginRight="20dp"
        android:layout_marginBottom="20dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        app:srcCompat="@mipmap/img" />

</RelativeLayout>

(2)java后台代码

package com.lucky.test14;

import android.app.Activity;
import android.graphics.Color;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    FloatingActionButton floatingActionButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        floatingActionButton=findViewById(R.id.floatingActionButton2);
        //给悬浮按钮设置点击事件
        floatingActionButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Snackbar.make(v,"snackBar内容显示",Snackbar.LENGTH_SHORT)
                        .setAction("确定", new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Toast.makeText(MainActivity.this,"您点击了确定",Toast.LENGTH_LONG).show();
                            }
                        })
                        .setActionTextColor(Color.BLUE)
                        .show();
            }
        });
    }
}

注意：

Toast语句一定不能忘记在最后调用show()方法

5.效果图

源码：test14