aop面向切面请求权限框

发现网上有很多权限请求框架，所以我自己也来写一个aop的请求框架，好处是不入侵原有代码达到解耦的效果。

1、首先在projcet的build中添加

classpath 'org.aspectj:aspectjtools:1.8.9'

之后在module的build添加如下配置

dependencies {
     ......
    compile 'org.aspectj:aspectjrt:1.8.9'
}




android.applicationVariants.all { variant ->
JavaCompile javaCompile = variant.javaCompile
javaCompile.doLast {
    String[] args = ["-showWeaveInfo",
                     "-1.8",
                     "-inpath", javaCompile.destinationDir.toString(),
                     "-aspectpath", javaCompile.classpath.asPath,
                     "-d", javaCompile.destinationDir.toString(),
                     "-classpath", javaCompile.classpath.asPath,
                     "-bootclasspath", project.android.bootClasspath.join(File.pathSeparator)]

    MessageHandler handler = new MessageHandler(true);
    new Main().run(args, handler)

    def log = project.logger
    for (IMessage message : handler.getMessages(null, true)) {
        switch (message.getKind()) {
            case IMessage.ABORT:
            case IMessage.ERROR:
            case IMessage.FAIL:
                log.error message.message, message.thrown
                break;
            case IMessage.WARNING:
            case IMessage.INFO:
                log.info message.message, message.thrown
                break;
            case IMessage.DEBUG:
                log.debug message.message, message.thrown
                break;
        }
    }
}

}

添加注解

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Permission {
String[] value();
}

核心代码

package com.example.aoppermission;

        import org.aspectj.lang.ProceedingJoinPoint;
        import org.aspectj.lang.annotation.Around;
        import org.aspectj.lang.annotation.Aspect;

/**
 * Created by yang2 on 2017/8/3.
 */
@Aspect
public class PermissionAspect {

    @Around("execution(@com.example.aoppermission.Permission * *(..)) && @annotation(permission)")
    public void aroundJoinPoint(final ProceedingJoinPoint joinPoint, final Permission permission) throws Throwable {
        PermissionUtil.requestPermissionsResult(MainActivity.mainActivity, 1, permission.value()
                , new PermissionUtil.OnPermissionListener() {
                    @Override
                    public void onPermissionGranted() {
                        try {
                            joinPoint.proceed();//获得权限，执行原方法
                        } catch (Throwable e) {
                            e.printStackTrace();
                        }
                    }

                    @Override
                    public void onPermissionDenied() {
                        PermissionUtil.showTipsDialog(MainActivity.mainActivity);
                    }
                });
    }
}

就这样权限请求框架及就搭好了

• GitHub项目地址,欢迎fork或star，提出宝贵意见https://github.com/AndroidCrow/AopPermission