Removed old settings fragment; added licences button; added ColorPickerView dependency, to be used to pick colours for text and highlight; removed transparency settings in favour of ColorPickerView

app/src/main/java/com/denizd/textbasic/sheet/AppSheet.kt

@@ -0,0 +1,34 @@
+package com.denizd.textbasic.sheet
+
+import android.content.Context
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.annotation.LayoutRes
+import com.google.android.material.bottomsheet.BottomSheetDialogFragment
+
+/**
+ * Bottom sheet super class providing common functionality. All bottom sheets should inherit from
+ * this.
+ *
+ * @param layoutId  ID of the layout of the bottom sheet
+ */
+open class AppSheet(@LayoutRes private val layoutId: Int) : BottomSheetDialogFragment() {
+
+    // Internal context object
+    private lateinit var _context: Context
+
+    /**
+     * Get non-null context. Only valid after onAttach().
+     */
+    override fun getContext(): Context = _context
+
+    override fun onAttach(context: Context) {
+        super.onAttach(context)
+        _context = context
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View =
+        LayoutInflater.from(context).inflate(layoutId, container, false)
+}

app/src/main/java/com/denizd/textbasic/sheet/TextSheet.kt

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+package com.denizd.textbasic.sheet
+
+import android.os.Bundle
+import android.view.View
+import com.denizd.textbasic.R
+import com.denizd.textbasic.databinding.SheetTextBinding
+import com.denizd.textbasic.util.viewBinding
+
+/**
+ * Bottom sheet used for displaying any sort of text to the user.
+ */
+class TextSheet : AppSheet(R.layout.sheet_text) {
+
+    // View binding
+    private val binding: SheetTextBinding by viewBinding(SheetTextBinding::bind)
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // Retrieve headline for the window
+        val header = arguments?.getString("header") ?: ""
+
+        // Check whether an ID has passed to use LiveData
+        val content = arguments?.getString("content") ?: ""
+
+        binding.textHeader.text = header
+        binding.textContent.text = content
+
+        // Set up a simple X button to be able to close the sheet
+        binding.buttonCancel.setOnClickListener {
+            // Do nothing and dismiss the sheet
+            dismiss()
+        }
+    }
+}