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package com.taobao.weex.ui.component;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.FrameLayout;
import com.taobao.weex.WXEnvironment;
import com.taobao.weex.WXSDKInstance;
import com.taobao.weex.WXSDKManager;
import com.taobao.weex.common.Component;
import com.taobao.weex.common.Constants;
import com.taobao.weex.dom.WXDomObject;
import com.taobao.weex.dom.WXEvent;
import com.taobao.weex.ui.ComponentCreator;
import com.taobao.weex.ui.view.WXCircleIndicator;
import com.taobao.weex.ui.view.WXCirclePageAdapter;
import com.taobao.weex.ui.view.WXCircleViewPager;
import com.taobao.weex.utils.WXLogUtils;
import com.taobao.weex.utils.WXUtils;
import com.taobao.weex.utils.WXViewUtils;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Map;
@Component(lazyload = false)
public class WXSlider extends WXVContainer<FrameLayout> {
Map<String, Object> params = new HashMap<>();
public static class Creator implements ComponentCreator {
public WXComponent createInstance(WXSDKInstance instance, WXDomObject node, WXVContainer parent, boolean lazy) throws IllegalAccessException, InvocationTargetException, InstantiationException {
return new WXSlider(instance, node, parent, lazy);
}
}
/**
* Scrollable sliderview
*/
/** package **/ WXCircleViewPager mViewPager;
/**
* Circle indicator
*/
protected WXIndicator mIndicator;
/**
* Adapter for sliderview
*/
protected WXCirclePageAdapter mAdapter;
protected boolean mShowIndicators;
protected OnPageChangeListener mPageChangeListener = new SliderPageChangeListener();
@Deprecated
public WXSlider(WXSDKInstance instance, WXDomObject dom, WXVContainer parent, String instanceId, boolean isLazy) {
this(instance, dom, parent, isLazy);
}
public WXSlider(WXSDKInstance instance, WXDomObject node, WXVContainer parent, boolean lazy) {
super(instance, node, parent, lazy);
}
@Override
protected FrameLayout initComponentHostView(@NonNull Context context) {
FrameLayout view = new FrameLayout(context);
// init view pager
FrameLayout.LayoutParams pagerParams = new FrameLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
mViewPager = new WXCircleViewPager(context);
mViewPager.setLayoutParams(pagerParams);
// init adapter
mAdapter = new WXCirclePageAdapter();
mViewPager.setAdapter(mAdapter);
// add to parent
view.addView(mViewPager);
mViewPager.addOnPageChangeListener(mPageChangeListener);
registerActivityStateListener();
return view;
}
//TODO Slider don't support any gesture for now.
@Override
public void addEvent(String type) {
super.addEvent(type);
if (getRealView() != null) {
getRealView().setOnTouchListener(null);
}
mGestureType.clear();
}
@Override
public ViewGroup getRealView() {
return mViewPager;
}
@Override
protected void addSubView(View view, int index) {
if (view == null || mAdapter == null) {
return;
}
if (view instanceof WXCircleIndicator) {
return;
}
mAdapter.addPageView(view);
mAdapter.notifyDataSetChanged();
if (mIndicator != null) {
mIndicator.getHostView().forceLayout();
mIndicator.getHostView().requestLayout();
}
}
@Override
public void remove(WXComponent child) {
remove(child, true);
}
@Override
public void remove(WXComponent child, boolean destroy) {
if (child == null || child.getHostView() == null || mAdapter == null) {
return;
}
mAdapter.removePageView(child.getHostView());
mAdapter.notifyDataSetChanged();
}
@Override
public void destroy() {
super.destroy();
if (mViewPager != null) {
mViewPager.stopAutoScroll();
mViewPager.removeAllViews();
mViewPager.destory();
}
}
@Override
public void onActivityResume() {
if (mViewPager != null && mViewPager.isAutoScroll()) {
mViewPager.startAutoScroll();
}
}
@Override
public void onActivityStop() {
if (mViewPager != null) {
mViewPager.stopAutoScroll();
}
}
public void addIndicator(WXIndicator indicator) {
FrameLayout root = getHostView();
if (root == null) {
return;
}
mIndicator = indicator;
WXCircleIndicator indicatorView = indicator.getHostView();
if (indicatorView != null) {
indicatorView.setCircleViewPager(mViewPager);
// indicatorView.setOnPageChangeListener(mPageChangeListener); // commented for twice onChange() called when do slide.
root.addView(indicatorView);
}
}
@Override
protected boolean setProperty(String key, Object param) {
switch (key) {
case Constants.Name.VALUE:
String value = WXUtils.getString(param, null);
if (value != null) {
setValue(value);
}
return true;
case Constants.Name.AUTO_PLAY:
String aotu_play = WXUtils.getString(param, null);
if (aotu_play != null) {
setAutoPlay(aotu_play);
}
return true;
case Constants.Name.SHOW_INDICATORS:
String indicators = WXUtils.getString(param, null);
if (indicators != null) {
setShowIndicators(indicators);
}
return true;
case Constants.Name.INTERVAL:
Integer interval = WXUtils.getInteger(param, null);
if (interval != null) {
setInterval(interval);
}
return true;
case Constants.Name.INDEX:
Integer index = WXUtils.getInteger(param, null);
if (index != null) {
setIndex(index);
}
return true;
}
return super.setProperty(key, param);
}
@Deprecated
@WXComponentProp(name = Constants.Name.VALUE)
public void setValue(String value) {
if (value == null || getHostView() == null) {
return;
}
int i;
try {
i = Integer.valueOf(value);
} catch (NumberFormatException e) {
WXLogUtils.e("", e);
return;
}
mViewPager.setCurrentItem(i);
}
@WXComponentProp(name = Constants.Name.AUTO_PLAY)
public void setAutoPlay(String autoPlay) {
if (TextUtils.isEmpty(autoPlay) || autoPlay.equals("false")) {
mViewPager.stopAutoScroll();
} else {
mViewPager.stopAutoScroll();
mViewPager.startAutoScroll();
}
}
@WXComponentProp(name = Constants.Name.SHOW_INDICATORS)
public void setShowIndicators(String show) {
if (TextUtils.isEmpty(show) || show.equals("false")) {
mShowIndicators = false;
} else {
mShowIndicators = true;
}
if (mIndicator == null) {
return;
}
mIndicator.setShowIndicators(mShowIndicators);
}
@WXComponentProp(name = Constants.Name.INTERVAL)
public void setInterval(int intervalMS) {
if (mViewPager != null && intervalMS > 0) {
mViewPager.setIntervalTime(intervalMS);
}
}
@WXComponentProp(name = Constants.Name.INDEX)
public void setIndex(int index) {
if (mViewPager != null && mAdapter != null) {
if(index >= mAdapter.getRealCount() || index < 0){
return;
}
index = index % mAdapter.getRealCount();
mViewPager.setCurrentItem(index);
}
}
protected class SliderPageChangeListener implements OnPageChangeListener {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int pos) {
if (WXEnvironment.isApkDebugable()) {
WXLogUtils.d("onPageSelected >>>>" + pos);
}
if (mAdapter == null || mAdapter.getRealCount() == 0) {
return;
}
int realPosition = pos % mAdapter.getRealCount();
if (mChildren == null || realPosition >= mChildren.size()) {
return;
}
if (getDomObject().getEvents().size() == 0) {
return;
}
WXEvent event = getDomObject().getEvents();
String ref = getDomObject().getRef();
if (event.contains(Constants.Event.CHANGE) && WXViewUtils.onScreenArea(getHostView())) {
params.put("index", realPosition);
Map<String, Object> domChanges = new HashMap<>();
Map<String, Object> attrsChanges = new HashMap<>();
attrsChanges.put("value", realPosition);
domChanges.put("attrs", attrsChanges);
WXSDKManager.getInstance().fireEvent(mInstanceId, ref,
Constants.Event.CHANGE, params, domChanges);
}
mViewPager.requestLayout();
getHostView().invalidate();
}
@Override
public void onPageScrollStateChanged(int arg0) {
FrameLayout root = getHostView();
if(null != root) {
root.invalidate();
}
}
}
}