java->kotlin

app/src/main/java/io/legado/app/ui/widget/RecyclerViewAtViewPager2.kt

@@ -1,55 +1,40 @@
-package io.legado.app.ui.widget;
+package io.legado.app.ui.widget
-
+
-import android.content.Context;
+import android.content.Context
-import android.util.AttributeSet;
+import androidx.recyclerview.widget.RecyclerView
-import android.view.MotionEvent;
+import android.util.AttributeSet
-
+import android.view.MotionEvent
-import androidx.annotation.NonNull;
+import kotlin.math.abs
-import androidx.annotation.Nullable;
+
-import androidx.recyclerview.widget.RecyclerView;
+class RecyclerViewAtViewPager2 : RecyclerView {
-
+    constructor(context: Context) : super(context)
-public class RecyclerViewAtViewPager2 extends RecyclerView {
+    constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
-
+    constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
-    public RecyclerViewAtViewPager2(@NonNull Context context) {
+
-        super(context);
+    private var startX = 0
-    }
+    private var startY = 0
-
+    override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
-    public RecyclerViewAtViewPager2(@NonNull Context context, @Nullable AttributeSet attrs) {
+        when (ev.action) {
-        super(context, attrs);
+            MotionEvent.ACTION_DOWN -> {
-    }
+                startX = ev.x.toInt()
-
+                startY = ev.y.toInt()
-    public RecyclerViewAtViewPager2(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+                parent.requestDisallowInterceptTouchEvent(true)
-        super(context, attrs, defStyleAttr);
+            }
-    }
+            MotionEvent.ACTION_MOVE -> {
-
+                val endX = ev.x.toInt()
-    private int startX, startY;
+                val endY = ev.y.toInt()
-
+                val disX = abs(endX - startX)
-    @Override
+                val disY = abs(endY - startY)
-    public boolean dispatchTouchEvent(MotionEvent ev) {
-        switch (ev.getAction()) {
-            case MotionEvent.ACTION_DOWN:
-                startX = (int) ev.getX();
-                startY = (int) ev.getY();
-                getParent().requestDisallowInterceptTouchEvent(true);
-                break;
-            case MotionEvent.ACTION_MOVE:
-                int endX = (int) ev.getX();
-                int endY = (int) ev.getY();
-                int disX = Math.abs(endX - startX);
-                int disY = Math.abs(endY - startY);
                 if (disX > disY) {
                     if (disX > 50) {
-                        getParent().requestDisallowInterceptTouchEvent(false);
+                        parent.requestDisallowInterceptTouchEvent(false)
                     }
                 } else {
-                    getParent().requestDisallowInterceptTouchEvent(true);
+                    parent.requestDisallowInterceptTouchEvent(true)
                 }
-                break;
+            }
-            case MotionEvent.ACTION_UP:
+            MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> parent.requestDisallowInterceptTouchEvent(false)
-            case MotionEvent.ACTION_CANCEL:
-                getParent().requestDisallowInterceptTouchEvent(false);
-                break;
         }
-        return super.dispatchTouchEvent(ev);
+        return super.dispatchTouchEvent(ev)
     }
 }