来这儿吆喝一波手指拖动的库已经很多了，但是这个库的亮点是支持系统级、Activity 级、ViewGroup 级三种模式，满足各种需求

FloatingView

Features

支持OverlaySystem 、 OverlayActivity 和 OverlayViewGroup 三种模式
OverlaySystem模式下可在其他 APP 上显示，自动申请权限
OverlayActivity模式下只在指定的 Activity 上显示
OverlayViewGroup模式下只在指定的 ViewGroup 上显示
可随着手指拖动
可指定 9 个初始位置
可指定初始 paddings

Usage

Step 1

在 project 的 build.gradle 中加入以下语句:

allprojects {
    repositories {
        ...
        maven { url "https://jitpack.io" }
    }
}

在 module 的 build.gradle 中加入以下语句:

dependencies {
    compile 'com.github.hzw1199:FloatingView:1.0.0'
}

Step 2

创建配置并显示

OverlaySystem模式

onCreate:

FloatingViewConfig config = new FloatingViewConfig.Builder()
        .setPaddingLeft(paddingLeft)
        .setPaddingTop(paddingTop)
        .setPaddingRight(paddingRight)
        .setPaddingBottom(paddingBottom)
        .setGravity(gravity)
        .build();
floatingView = new FloatingView(OverlaySystemActivity.this, R.layout.view_floating, config);
floatingView.showOverlaySystem();

onDestroy:

if (floatingView != null) {
    floatingView.hide();
}

OverlayActivity模式

onAttachedToWindow:

FloatingViewConfig config = new FloatingViewConfig.Builder()
        .setPaddingLeft(paddingLeft)
        .setPaddingTop(paddingTop)
        .setPaddingRight(paddingRight)
        .setPaddingBottom(paddingBottom)
        .setGravity(gravity)
        .build();
floatingView = new FloatingView(OverlaySystemActivity.this, R.layout.view_floating, config);
floatingView.showOverlayActivity();

onDetachedFromWindow:

if (floatingView != null) {
    floatingView.hide();
}

OverlayViewGroup模式

onCreate:

lyViewGroup.post(new Runnable() {
    @Override
    public void run() {
		FloatingViewConfig config = new FloatingViewConfig.Builder()
		        .setPaddingLeft(paddingLeft)
		        .setPaddingTop(paddingTop)
		        .setPaddingRight(paddingRight)
		        .setPaddingBottom(paddingBottom)
		        .setGravity(gravity)
		        .setDisplayWidth(lyViewGroup.getWidth())
		        .setDisplayHeight(lyViewGroup.getHeight())
		        .build();
		floatingView = new FloatingView(OverlaySystemActivity.this, R.layout.view_floating, config);
		floatingView.showOverlayViewGroup(lyViewGroup);
    }
});

onDestroy:

if (floatingView != null) {
    floatingView.hide();
}

lyViewGroup是用来放置 FloatingView 的 ViewGroup

Step 3

点击事件

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

Proguard

无需配置混淆规则, consumerProguardFiles 已经配置过了

Tip

使用前请查看 demo
若对你有帮助请加星
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License

The MIT License (MIT)

Copyright (c) 2017 AndroidGpsStatus

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

撸了一个支持系统级、Activity 级、ViewGroup 级拖动控件的库