FreePermission

一个利用apt实现的功能，只需要加一个注解，点击按钮之前能够获取到权限 写法类似这样

@Permission(R.id.tv, READ_PHONE_PERMISSION)
fun onClick() {
  val intent = Intent(this, TestActivity::class.java)
  startActivity(intent)
}

目前只写了单个按钮点击跳转前获取权限

ps：其实如果是kotlin的话，用extension显然是更好的办法

tv = findViewById(R.id.tv)
tv?.permissionClickListener(this, READ_PHONE_PERMISSION) {
    val intent = Intent(this, TestActivity::class.java)
    startActivity(intent)
}

permissionClickListener的实现如下

fun View.permissionClickListener(act: Activity, permission: Int, permissionClick: (Int) -> Unit) {
    val clickListener = View.OnClickListener {
        PermissionUtils.checkHavePermission(act, permission, object : PermissionUtils.PermissionListener {
            override fun onSuccess() {
                super.onSuccess()
                permissionClick(permission)
            }

            override fun onFail() {
                super.onFail()
            }
        })
   }
   setOnClickListener(clickListener)
}

获取权限用的是https://github.com/yanzhenjie/AndPermission