以编程方式移动约束布局

Question

我想以编程方式移动 ConstraintLayout。我查看了一些关于堆栈溢出的解决方案，但它们对我不起作用。

有两个垂直放置的ConstraintLayout。当代码进入 else if("android.permission.CAMERA" in permissionList.toString() 时，上面的约束布局 (layoutLocation) 将不可见，下面的约束布局 (layoutCamera) 将出现并占据其位置。我用 'want to use here'.

标记我应该使用的声明

Code (apology to not ba able to post the whole code due to patent reason)

class SplashFragment : Fragment() {

private lateinit var mContext: MainActivity

private lateinit var binding : FragmentSplashBinding
private val viewModel : SplashViewModel by inject()
private val getPermissionUseCase : GetPermissionUseCase by inject()

override fun onAttach(context: Context) {
    super.onAttach(context)
    mContext = context as MainActivity
}

override fun onCreateView(
    inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
): View {
    binding = DataBindingUtil.inflate(inflater, R.layout.fragment_splash, container, false)
    return binding.root
}


override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
    binding.viewModel = viewModel
    binding.lifecycleOwner = viewLifecycleOwner

}




private fun actionApplicationSetting(permissionList : List<String>) {
    val layoutInflater = LayoutInflater.from(context)
    val view = layoutInflater.inflate(R.layout.dialog_splash, null)
    val alertDialog = AlertDialog.Builder(requireContext(), R.style.CustomAlertDialog).setView(view).create()
    val layoutLocation : ConstraintLayout = view.findViewById(R.id.layout_box_location)
    val layoutCamera : ConstraintLayout = view.findViewById(R.id.layout_box_camera)
    
    for(permission in permissionList) {
        if("android.permission.CAMERA" in permissionList.toString() && "android.permission.ACCESS_COARSE_LOCATION" in permissionList.toString()) {
            layoutLocation.background = AppCompatResources.getDrawable(mContext, R.drawable.auth_level_blue)
            layoutCamera.background = AppCompatResources.getDrawable(mContext, R.drawable.auth_level_blue)
        }else if("android.permission.ACCESS_COARSE_LOCATION" in permissionList.toString()) {
            layoutLocation.background = AppCompatResources.getDrawable(mContext, R.drawable.auth_level_blue)
        }else if("android.permission.CAMERA" in permissionList.toString()) {
            layoutLocation.visibility = View.INVISIBLE
            // want to use here
        }
    }
    alertDialog.show()

}

}

XML

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">

<androidx.constraintlayout.widget.ConstraintLayout
    android:id="@+id/layout_main"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="wrap_content"
        android:layout_height="60dp"
        android:layout_marginStart="70dp"
        android:layout_marginBottom="10dp"
        app:layout_constraintBottom_toBottomOf="@+id/layout_wrapper"
        app:layout_constraintEnd_toEndOf="@+id/layout_wrapper"
        app:layout_constraintStart_toStartOf="@+id/layout_wrapper">
    </androidx.constraintlayout.widget.ConstraintLayout>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/layout_wrapper"
        android:layout_width="match_parent"
        android:layout_height="180dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/layout_box_location"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"       
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/layout_box_camera"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/layout_box_location" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>

Answer 1

而不是 layoutLocation.visibility = View.INVISIBLE 试试 layoutLocation.visibility = View.GONE

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