如何在 Kotlin-MVP 中从 Adapter class 在 button.setOnClickListener 中显示片段对话框？

Question

我正在使用此 Kotlin-MVP 结构开发一个 Android 应用程序。我有一个 activity，它包含 4 个片段的 TabLayout。所有片段在 RecyclerView 中都有一个按钮。我需要在该按钮点击侦听器上显示一个 "Fragment Dialog"。你能告诉我如何在适配器 class 的按钮点击侦听器上显示片段对话框吗？请查看屏幕截图。

我正在访问来自适配器 class 的单击侦听器事件按钮，该事件位于 itemView.btn_accept.setOnClickListener:

下方

class InApprovalAdapter(private val jobListItems: MutableList<JobItem>) : RecyclerView.Adapter<InApprovalAdapter.JobViewHolder>() {

private var _ProfileId: Long? = null;

fun getProfileId(): Long? {
    return _ProfileId
}

fun setProfileId(s: Long) {
    _ProfileId = s
}

private var _UserToken : String? = null;

fun getUserToken(): String? {
    return _UserToken
}

fun setUserToken(s: String) {
    _UserToken = s
}

private var _UserTypeId : Long? = null;
fun getUserTypeId(): Long? {
    return _UserTypeId
}

fun setUserTypeId(s: Long) {
    _UserTypeId = s
}


override fun getItemCount() = this.jobListItems.size

override fun onBindViewHolder(holder: JobViewHolder, position: Int) = holder.let {
    it.clear()
    it.onBind(position)
}

override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int) = JobViewHolder(LayoutInflater.from(parent?.context)
        .inflate(R.layout.item_inapproval_list, parent, false))

internal fun addJobsToList(jobs: List<JobItem>, profileId: Long?, userToken: String?, userTypeId: Long?) {
    this.jobListItems.addAll(jobs)
    setProfileId(profileId!!.toLong())
    setUserToken(userToken!!)
    setUserTypeId(userTypeId!!)
    notifyDataSetChanged()
}

inner class JobViewHolder(view: View) : RecyclerView.ViewHolder(view) {

    fun clear() {
        itemView.tv_job_id.text = "";
        itemView.tv_job_title.text= "";
        //itemView.tv_job_description.text ="";
        itemView.tv_job_category.text ="";
        itemView.tv_date_created.text ="";
    }

    fun onBind(position: Int) {

        val (jobId, name, description, serviceId, serviceName,
                address, engineerIds, engineerNames, startDateTimeUtc,
                startDateTimeLocal, endDateTimeUtc, endDateTimeLocal,
                customerId, customerName, customerMobile, customerAltMobile,
                priorityTypeId, priorityTypeName, statusTypeId, statusTypeName,
                isDeleted, isStatusTypeActive, createdBy, createdByName,
                dateCreatedPretty, modifiedBy, modifiedByName ,hasJobMedia,
                jobMedias, hasJobFeedback, jobDetailsImage, dateCreatedUtc, dateModifiedUtc) = jobListItems[position]

        inflateData(jobId, name,
                description,
                serviceId,
                serviceName,
                address,
                engineerIds,
                engineerNames,
                startDateTimeUtc,
                startDateTimeLocal,
                endDateTimeUtc,
                endDateTimeLocal,
                customerId,
                customerName,
                customerMobile,
                customerAltMobile,
                priorityTypeId,priorityTypeName,
                statusTypeId,
                statusTypeName,
                isDeleted,
                isStatusTypeActive,
                createdBy,
                createdByName,
                dateCreatedPretty,
                modifiedBy,
                modifiedByName ,
                hasJobMedia,
                jobMedias, hasJobFeedback, jobDetailsImage, dateCreatedUtc, dateModifiedUtc)
        setItemClickListener(jobId)
    }

    private fun setItemClickListener(jobId: Long?) {
        itemView.setOnClickListener {
            jobId?.let {
                try {
                    val intent = Intent(itemView.context, ServiceDetailActivity::class.java)
                    intent.putExtra("JobId", jobId)
                    itemView.context.startActivity(intent)
                } catch (e: Exception) {
                    Toast.makeText(itemView.context, e.message, Toast.LENGTH_LONG).show()
                }
            }
        }

        itemView.btn_accept.setOnClickListener {



        }

        itemView.btn_reject.setOnClickListener{

        }
    }
    private fun inflateData(jobId: Long?, name: String?, description: String?, serviceId: Long?, serviceName: String?, address: String?, engineerIds: String?,
                            engineerNames: String?, startDateTimeUtc: String?, startDateTimeLocal: String?, endDateTimeUtc: String?,
                            endDateTimeLocal: String?, customerId: Long?, customerName: String?, customerMobile:String?, customerAltMobile: String?,
                            priorityTypeId: Long?, priorityTypeName: String?, statusTypeId: Long?, statusTypeName: String?, isDeleted: Boolean?, isStatusTypeActive: Boolean?,
                            createdBy: Long?, createdByName: String?, dateCreatedPretty: String?, modifiedBy: Long?, modifiedByName: String?, hasJobMedia: Boolean?,
                            jobMedias: List<JobDetailsImage>?, hasJobFeedback: Boolean?, jobDetailsImage:  List<JobDetailsImage>?, dateCreatedUtc: String?, dateModifiedUtc: String?) {
        name.let {
            itemView.tv_job_title.text = it;
        }
        jobId.let {
            itemView.tv_job_id.text = "Job\n#" + it
        }
        /*description.let {
            itemView.tv_job_description.text = it
        }*/
        serviceName.let {
            itemView.tv_job_category.text = it
        }
        dateCreatedPretty.let {
            itemView.tv_date_created.text = it
        }

        if(getUserTypeId() == AppConstants.UserType.Administrator.type ||
                getUserTypeId() == AppConstants.UserType.Admin.type)
        {
            itemView.btn_reject.text = "Reject";
        }
        else
        {
            itemView.btn_reject.text = "Delete";
            itemView.btn_accept.visibility = View.GONE
        }
    }

    private fun callJobStatusChangeApi(jobId: Long?, statusTypeId: Long?)
    {
        val androidId = Settings.Secure.getString(itemView.context.contentResolver, Settings.Secure.ANDROID_ID)

        Rx2AndroidNetworking.post(ApiEndPoint.ENDPOINT_JOB_CHANGEJOBSTATUS)
                .addHeaders("Authorization", "bearer " + getUserToken())
                .addQueryParameter("profileId",  getProfileId().toString())
                .addQueryParameter("jobId", jobId.toString())
                .addQueryParameter("statusTypeId", statusTypeId.toString())
                .addQueryParameter("DeviceId", androidId.toString())
                .build()
                .getAsObject(BaseResponse::class.java, object : ParsedRequestListener<BaseResponse> {

                    override fun onResponse(baseResponse: BaseResponse) {
                        // do anything with response
                        println("succeeded : " + baseResponse.succeeded)
                        println("message : " + baseResponse.message)

                        if(baseResponse.succeeded)
                        {
                            val inApprovalFragment : InApprovalFragment = InApprovalFragment()
                            inApprovalFragment.showStatusSubmissionSuccessMessage(itemView.context, baseResponse.message);
                            notifyDataSetChanged();
                        }
                    }

                    override fun onError(anError: ANError) {
                        // handle error
                        println(anError.message);
                    }

                })
    }

}

}

Answer 1

如果您在访问 FragmentManager 时遇到问题，您可以简单地将 lambda 作为接受按钮的 OnClickListener 传递给您的适配器：

class InApprovalAdapter(
    private val jobListItems: MutableList<JobItem>
    // If you have data to pass to the handler(like a jobId for example) 
    // modify the lambda like (Int) -> Unit
    private val acceptHandler: () -> Unit
    ) : RecyclerView.Adapter<InApprovalAdapter.JobViewHolder>() {

然后你可以使用那个 lambda：

itemView.btn_accept.setOnClickListener {
     acceptHandler()
}

然后创建适配器：

val adapter = InApprovalAdapter(theListOfItems, val clickListener: (Item) -> Unit) {
    // I'm assuming you're creating this adapter inside the Fragment class
    // so at this point you can access getFragmentManager()
    // ideally you'll let the presenter know that something happened in the view: presenter.userAcceptedJob()
    // and the presenter will call back a method on the view to actually show the DialogFragment.
}

Answer 2

我做同样的事情，显示从适配器调用的自定义对话框 fragment.Not 需要制作对话框片段，它会做同样的事情。

在设置适配器时从片段传递 activity

在 ListFragment 中：-

rvAdapter = Listadapter( listnotes,activity!!)

在列表适配器中 class :-

class Listadapter( val DataList: ArrayList<String>?,val parentActivity: Activity) : RecyclerView.Adapter<Listadapter.ViewHolder>() {}

在onBindViewHolder方法中：-

view.notes.setOnClickListener {
        DialogNOTES(parentActivity,DataList[position])
    }

make 方法在 Listadapter 中显示自定义 dailog class:-

private fun DialogNOTES(parentActivity: Activity,notes:String) {
    val dialog = Dialog(parentActivity)
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE)
    dialog.setCancelable(true)
    dialog.setContentView(R.layout.notes_dilog)//custom dialog layout 
    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

    dialog.show()

    dialog.dilog_notes.setText(notes)


}

如何在 Kotlin-MVP 中从 Adapter class 在 button.setOnClickListener 中显示片段对话框？

How to show fragment dialog in button.setOnClickListener from Adapter class in Kotlin-MVP?

android

android-fragments

kotlin

android-recyclerview

android-mvp