Question

编写此代码：

fun getStoreTitles():List<sample> {
        var responseResult:List<sample>
        responseResult= listOf(sample("","",""))
        val service = getRetrofitInstance()!!.create(GetDataService::class.java)
        val call = service.getAllPhotos()
        call.enqueue(object : Callback<List<sample>> {
            override fun onResponse(call: Call<List<sample>>, response: Response<List<sample>>) {
                responseResult=response.body()!!
                var t=0
            }
            override fun onFailure(call: Call<List<sample>>, t: Throwable) {
                /*progressDoalog.dismiss()*/
                //Toast.makeText(this@MainActivity, "Something went wrong...Please try later!", Toast.LENGTH_SHORT).show()
            }
        });
        return responseResult
}

，并希望通过以下方式从主要活动中调用该方法：

var responseResult:List<sample>
val FrameWork=StoreTitle()
responseResult=FrameWork.getStoreTitles()

当运行应用程序时，改造运行成功，但没有返回到responseResult，并且为空，我认为改造运行其他线程，这就是原因。我如何解决该问题？

Answer 1

更新您的api调用方法：

fun getStoreTitles(callback : Callback<List<sample>>) {
    var responseResult:List<sample>
    responseResult= listOf(sample("","",""))
    val service = getRetrofitInstance()!!.create(GetDataService::class.java)
    val call = service.getAllPhotos()
    call.enqueue(callback);

}

您必须这样打电话：

val FrameWork=StoreTitle()
FrameWork.getStoreTitles(object : Callback<List<sample>> {
        override fun onResponse(call: Call<List<sample>>, response: Response<List<sample>>) {
         val responseResult : List<sample>? =response.body()      
         //handle your success
        }
        override fun onFailure(call: Call<List<sample>>, t: Throwable) {
             //handle your failure
        }
    })

在其他方法中调用改造并将结果返回到主线程

1 个答案: