RefreshHeadViewManager.java
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package com.hzl.pulltorefresh.refresh.view;
import androidx.annotation.Nullable;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import com.facebook.react.bridge.Arguments;
import com.facebook.react.bridge.WritableMap;
import com.facebook.react.common.MapBuilder;
import com.facebook.react.uimanager.ThemedReactContext;
import com.facebook.react.uimanager.ViewGroupManager;
import com.facebook.react.uimanager.annotations.ReactProp;
import com.facebook.react.uimanager.events.RCTEventEmitter;
import com.hzl.pulltorefresh.refresh.header.RefreshHeader;
import java.util.Map;
/**
* 作者：请叫我百米冲刺 on 2018/1/2 下午1:20
* 邮箱：mail@hezhilin.cc
*/
public class RefreshHeadViewManager extends ViewGroupManager<RefreshHeader> {
@Override
public String getName() {
return "RCTRefreshHeader";
}
public enum Events { //这里是一些点击事件
ON_PUSHING_STATE("onPushingState");
private final String mName;
Events(final String name) {
mName = name;
}
@Override
public String toString() {
return mName;
}
}
@Override
@Nullable
public Map getExportedCustomDirectEventTypeConstants() {
MapBuilder.Builder builder = MapBuilder.builder();
for (Events event : Events.values()) {
builder.put(event.toString(), MapBuilder.of("registrationName", event.toString()));
}
return builder.build();
}
@Override
protected RefreshHeader createViewInstance(ThemedReactContext reactContext) {
final RefreshHeader refreshHeader = new RefreshHeader(reactContext);
final RCTEventEmitter mEventEmitter = reactContext.getJSModule(RCTEventEmitter.class);
refreshHeader.setPullStateChangeListener(new RefreshHeader.PullStateChangeListener() {
@Override
public void onStateChange(boolean isUnderTouch, int state, int moveHeight) {
//进行下拉触摸的回调
WritableMap map = Arguments.createMap();
map.putInt("moveHeight", moveHeight);
map.putInt("state", state);
mEventEmitter.receiveEvent(refreshHeader.getId(), Events.ON_PUSHING_STATE.toString(), map);
}
});
return refreshHeader;
}
@ReactProp(name = "viewHeight")
public void setViewHeight(RefreshHeader root, int viewHeight) {
root.setLayoutParams(new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, viewHeight));
}
}