从一个项目中点击一个BottomSheetDialog来膨胀RecyclerVIew？

Question

我已经实现了一个启动BottomSheetDialog的方法，但是我面临着这个错误

 android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?
    at android.view.ViewRootImpl.setView(ViewRootImpl.java:907)
    at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:387)
    at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:95)
    at android.app.Dialog.show(Dialog.java:342)
    at com.example.moveapplication.adapter.PostAdapter.openBottomSheet(PostAdapter.kt:136)
    at com.example.moveapplication.adapter.PostAdapter.onBindViewHolder$lambda-2(PostAdapter.kt:53)
    at com.example.moveapplication.adapter.PostAdapter.$r8$lambda$Ya4NMbtCP1ASbfWIkCscOWrPyOw(Unknown Source:0)
    at com.example.moveapplication.adapter.PostAdapter$$ExternalSyntheticLambda2.onClick(Unknown Source:4)
    at android.view.View.performClick(View.java:7125)
    at android.view.View.performClickInternal(View.java:7102)
    at android.view.View.access$3500(View.java:801)
    at android.view.View$PerformClick.run(View.java:27336)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7356)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

下面是在单击项之后调用的方法

private fun openBottomSheet(publisher: String) {
     val inflater = mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
     val view = inflater.inflate(R.layout.bottom_sheet_dialog, null)
     val uImage = view.findViewById<ImageView>(R.id.sheetIvProfileImage)
     val uNumber = view.findViewById<TextView>(R.id.sheetTvOwnerNumber)
     val uEmail = view.findViewById<TextView>(R.id.tvOwnerEmail)
     val uAbout = view.findViewById<TextView>(R.id.tvOwnerAbout)
     val uTitle = view.findViewById<TextView>(R.id.sheetTvOwnerTitle)

     val ownersRef = FirebaseFirestore.getInstance().collection("owners").document(publisher)
     ownersRef.get().addOnSuccessListener { document ->
         val ownerModel = document.toObject(Owner::class.java)
         Glide.with(mContext)
             .load(ownerModel!!.profileImage)
             .into(uImage)
         uTitle.text = ownerModel.username
         uNumber.text = ownerModel.phoneNumber
         uEmail.text = ownerModel.email
         uAbout.text = ownerModel.about
     }

    val bottomSheetDialog = Dialog(mContext)
    bottomSheetDialog.apply {
        setContentView(view)
        setCancelable(true)
        window?.setLayout(
            LinearLayout.LayoutParams.MATCH_PARENT,
            LinearLayout.LayoutParams.WRAP_CONTENT)
        window?.setGravity(Gravity.BOTTOM)
        show()
    }

 }

我不熟悉另一种方法来做膨胀底部板对话框。使用这种方法是一次试验，目的是看看它是否能起作用。

在我的onBindViewHolder (负责单击的项目)上，我已经以这种方式实现了它

 holder.publisher.setOnClickListener {
        openBottomSheet(post.publisher)
    }

Answer 1

要做到这一点，您可以很容易地使用材料设计底片。首先，您需要向build.gradle添加物质依赖：

dependencies {
    // ...
    implementation 'com.google.android.material:material:<version>'
    // ...
}

然后您应该创建一个kotlin文件/类并扩展BottomSheetDialogFragment()

class ModalBottomSheet : BottomSheetDialogFragment() {

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? = inflater.inflate(R.layout.modal_bottom_sheet_content, container, false)
}

您还可以将不同的样式设置为自定义底部工作表。

您可以看到下面的基本用法：

class MainActivity : AppCompatActivity() {
    ...
    val modalBottomSheet = ModalBottomSheet()
    modalBottomSheet.show(supportFragmentManager, TAG)
    ...
}

更新

您可以创建一个接口，并在适配器构造函数中使用它将回调返回给父(在其中创建适配器)。

interface PostAdapterCallback{
    onPublisherClicked(publisher : String)
    //or
    onOwnerClicked(owner: Owner)
}

class PostAdapter(private val publisherList: List<String>, val callback:PostAdapterCallback){}

现在，您可以将模型放在适配器中并将所有者模型作为回调传递，或者将发布服务器传递给您的活动并在那里调用您的FirebaseFirestore.getInstance()。

在你的活动中：

override fun onOwnerClicked(owner : Owner){
    //you can call you bottomsheet here and pass you model as a bundle if you need
}

Answer 2

创建一个接口

interface RecyclerClickListeners {
fun onRecyclerViewItemClick(view: View, model:Model) }

向RecyclerAdapter和片段添加接口

碎片：

class TestFragment :
Fragment(),    
RecyclerClickListeners {
private val recyclerAdapter = TestRecyclerAdapter(arrayListOf(),this)... }

回收适配器：

class TestRecyclerAdapter(private val modelList: ArrayList<Model>, val listener: RecyclerClickListeners) ...

将onBindViewHolder中的模型发送到片段

       holder.binding.root.setOnClickListener {
        listener.onRecyclerViewItemClick(it, modelList[position])
    }

在片段调用或创建底部页对话框中

override fun onRecyclerViewItemClick(view: View, model: Model) { openBottonSheetFragment(model) }

现在，您可以在底部工作表片段中使用ownerModel。

Answer 3

private void showBottomSheetDialog() {

    final BottomSheetDialog bottomSheetDialog = new BottomSheetDialog(this);
    bottomSheetDialog.setContentView(R.layout.bottom_sheet_dialog);

    ...

    bottomSheetDialog.show();
}

在回收设备上调用上面的功能