MinMaxNumberPicker: Set IME input to use number only (#6286)

* MinMaxNumberPicker: Set IME input to use number only

* MinMaxNumberPicker: Auto disable keyboard input when needed

app/src/main/java/eu/kanade/tachiyomi/widget/MinMaxNumberPicker.kt

@@ -1,13 +1,27 @@
 package eu.kanade.tachiyomi.widget
 
 import android.content.Context
+import android.text.InputType
 import android.util.AttributeSet
+import android.widget.EditText
 import android.widget.NumberPicker
+import androidx.core.view.doOnLayout
 import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.util.view.findDescendant
 
 class MinMaxNumberPicker @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
     NumberPicker(context, attrs) {
 
+    override fun setDisplayedValues(displayedValues: Array<out String>?) {
+        super.setDisplayedValues(displayedValues)
+
+        // Disable keyboard input when a value that can't be auto-filled with number exists
+        val notNumberValue = displayedValues?.find { it.getOrNull(0)?.digitToIntOrNull() == null }
+        if (notNumberValue != null) {
+            descendantFocusability = FOCUS_BLOCK_DESCENDANTS
+        }
+    }
+
     init {
         if (attrs != null) {
             val ta = context.obtainStyledAttributes(attrs, R.styleable.MinMaxNumberPicker, 0, 0)
@@ -18,5 +32,9 @@ class MinMaxNumberPicker @JvmOverloads constructor(context: Context, attrs: Attr
                 ta.recycle()
             }
         }
+
+        doOnLayout {
+            findDescendant<EditText>()?.setRawInputType(InputType.TYPE_CLASS_NUMBER)
+        }
     }
 }

app/src/main/res/layout/pref_library_columns.xml

@@ -22,7 +22,6 @@
             android:id="@+id/portrait_columns"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:descendantFocusability="blocksDescendants"
             app:max="10"
             app:min="0" />
 
@@ -44,7 +43,6 @@
             android:id="@+id/landscape_columns"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:descendantFocusability="blocksDescendants"
             app:max="10"
             app:min="0" />