compile 'com.paozhuanyinyu:permission:1.0.0'
compile 'io.reactivex.rxjava2:rxjava:2.0.6'//由于依赖RxJava2,所以使用时需引入

<dependency>
  <groupId>com.paozhuanyinyu</groupId>
  <artifactId>permission</artifactId>
  <version>1.0.0</version>
  <type>pom</type>
</dependency>
<dependency>
  <groupId>io.reactivex.rxjava2</groupId>
  <artifactId>rxjava</artifactId>
  <version>2.0.6</version>
  <type>pom</type>
</dependency>

XPermission.getInstance()
            .requestEach(context,new Params(Manifest.permission.Camera, "拍照",true))
            //这里只要是Context就行，不限于Activity,Fragment,且其他代码处也可以使用
            .subscribe(new Consumer<Permission>() {
                @Override
                public void accept(Permission permission) throws Exception {
                    if(permission.granted){
                        //已授权回调
                        Toast.makeText(MainActivity.this,"授权成功",Toast.LENGTH_SHORT).show();
                    }else{
                        //拒绝授权回调
                        Toast.makeText(MainActivity.this,"拒绝授权",Toast.LENGTH_SHORT).show();
                    }
                }
            });

 http://www.apache.org/licenses/LICENSE-2.0