React-native-gesture-handler 有问题(找不到符号字符串溢出 = ((ReactViewGro

Question

我在react-native-gesture-handler上遇到了问题。每当我将react-native-gesture-handler链接到我的项目时，它都会停止工作并显示此错误。但是在取消react-native-gesture-handler与我的项目的链接后，应用程序工作正常。但是由于我需要从多个屏幕导航，因此我需要手势处理程序。

首先，我认为这是react-native版本的问题，因为我使用的是react-native版本0.57.0，但它在0.58.0和0.55.4上也不起作用。

package com.swmansion.gesturehandler.react;
import android.os.Build;
import android.view.View;
import android.view.ViewGroup;
import com.facebook.react.uimanager.PointerEvents;
import com.facebook.react.uimanager.ReactPointerEventsView;
import com.facebook.react.views.view.ReactViewGroup;
import com.swmansion.gesturehandler.PointerEventsConfig;
import com.swmansion.gesturehandler.ViewConfigurationHelper;
public class RNViewConfigurationHelper implements ViewConfigurationHelper {
  @Override
  public PointerEventsConfig getPointerEventsConfigForView(View view) {
    PointerEvents pointerEvents;
    pointerEvents = view instanceof ReactPointerEventsView ?
            ((ReactPointerEventsView) view).getPointerEvents() :
            PointerEvents.AUTO;
    // Views that are disabled should never be the target of pointer events. However, their children
    // can be because some views (SwipeRefreshLayout) use enabled but still have children that can
    // be valid targets.
    if (!view.isEnabled()) {
      if (pointerEvents == PointerEvents.AUTO) {
        return PointerEventsConfig.BOX_NONE;
      } else if (pointerEvents == PointerEvents.BOX_ONLY) {
        return PointerEventsConfig.NONE;
      }
    }
    switch (pointerEvents) {
      case BOX_ONLY: return PointerEventsConfig.BOX_ONLY;
      case BOX_NONE: return PointerEventsConfig.BOX_NONE;
      case NONE: return PointerEventsConfig.NONE;
    }
    return PointerEventsConfig.AUTO;
  }
  @Override
  public View getChildInDrawingOrderAtIndex(ViewGroup parent, int index) {
    if (parent instanceof ReactViewGroup) {
      return parent.getChildAt(((ReactViewGroup) parent).getZIndexMappedChildIndex(index));
    }
    return parent.getChildAt(index);
  }
  @Override
  public boolean isViewClippingChildren(ViewGroup view) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2 && !view.getClipChildren()) {
        if (view instanceof ReactViewGroup) {
            String overflow = ((ReactViewGroup) view).getOverflow();
            return "hidden".equals(overflow);
        }
        return false;
      }
    return true;
  }
}

Answer 1

您可以尝试手动链接。

另请查看此问题：https://github.com/kmagiera/react-native-gesture-handler/issues/205

Answer 2

如果您在Android中遇到问题，而不是iOS中遇到问题，则可能是您需要为符号添加polyfill。 我不记得我在哪里找到这个，但我在我自己的项目中使用它并且它有效。 只需将其粘贴在您的索引中.js：

if (Platform.OS === 'android') {
  if (typeof Symbol === 'undefined') {
    if (Array.prototype['@@iterator'] === undefined) {
      Array.prototype['@@iterator'] = function() {
        let i = 0;
        return {
          next: () => ({
            done: i >= this.length,
            value: this[i++]
          })
        };
      };
    }
  }
}