最近项目中用到一个多级联动，可以动态的展示1-3个选择列
这张图是预计的实现效果，图片是在其他博客找来的，计划想根据这个样式做一个多级联动
布局是这么写的，三个listview，然后上面盖两行分隔线
listview_left
listview_center
listview_right
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ListView
android:background="@color/backgroundColor"
android:layout_weight="1"
android:scrollbars="none"
android:divider="@null"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollChangeSelector_listViewOfLeft"></ListView>
<ListView
android:background="@color/backgroundColor"
android:layout_weight="1"
android:scrollbars="none"
android:divider="@null"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollChangeSelector_listViewOfCenter"></ListView>
<ListView
android:background="@color/backgroundColor"
android:layout_weight="1"
android:scrollbars="none"
android:divider="@null"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollChangeSelector_listViewOfRight"></ListView>
</LinearLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/dotted_line_color"/>
<View
android:layout_width="match_parent"
android:layout_height="@dimen/queryDialogChildHeight"/>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/dotted_line_color"/>
</LinearLayout>
</FrameLayout>
</FrameLayout>然后自定义一个FrameLayout，引入这个布局
public class ScrollChangeSelector extends FrameLayout {
private Context context;
private ListView selectorListView_left;
private ListView selectorListView_center;
private ListView selectorListView_right;
public ScrollChangeSelector(Context context) {
super(context);
this.context = context;
init();
}
public ScrollChangeSelector(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
init();
}
private void init() {
View.inflate(context,R.layout.view_scroll_change_selector,this);
selectorListView_left = findViewById(R.id.scrollChangeSelector_listViewOfLeft);
selectorListView_center = findViewById(R.id.scrollChangeSelector_listViewOfCenter);
selectorListView_right = findViewById(R.id.scrollChangeSelector_listViewOfRight);
}
...省略...
}核心看一下我是怎么实现item翻转的
private ValueAnimator itemRotationAnimator;
private int animatorDuration = 200;//动画时长
private final void itemRotationAnimator(final TextView itemTv,final int start,final int end){
itemRotationAnimator = new ValueAnimator().ofInt(start,end);
itemRotationAnimator.setDuration(animatorDuration);
itemRotationAnimator.setRepeatCount(0);
itemRotationAnimator.setInterpolator(new LinearInterpolator());
itemRotationAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int value = (int) animation.getAnimatedValue();
itemTv.setRotationX(value);
if(value == end){
itemTv.clearAnimation();
}
}
});
itemRotationAnimator.start();
}贴出完整的代码：
package com.zzyd.view;
import android.animation.ValueAnimator;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.content.ContextCompat;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.LinearInterpolator;
import android.widget.AbsListView;
import android.widget.BaseAdapter;
import android.widget.FrameLayout;
import android.widget.ListView;
import android.widget.TextView;
import com.zzyd.hrm.R;
import java.util.List;
/**
* Created by Administrator on 2017/10/10 0010.
*
* 滑动选择器
*
* http://blog.youkuaiyun.com/u013003312/article/details/52426965
* 按照上面的博客的样子做一个
*
* 最大条数：3个
*
* 完美造轮子~
*
*/
public class ScrollChangeSelector extends FrameLayout {
/**
* 声明三个数据源
* 三个选择器
* 三个适配器
*/
private List<String> dataOfSelector_left;
private List<String> dataOfSelector_center;
private List<String> dataOfSelector_right;
private Context context;
private ListView selectorListView_left;
private ListView selectorListView_center;
private ListView selectorListView_right;
private SelectorAdapter selectorAdapter_left;
private SelectorAdapter selectorAdapter_center;
private SelectorAdapter selectorAdapter_right;
private int numberOfColumn;//当前选择器的条目数量，最大3个
private final int scrollOverVisibleNum = 3;//选择器滚动到边界时显示的item数量，默认3
private int itemTvSize = 13;//文字大小
private ScrollChangeSelectorListener selectorListener;
public ScrollChangeSelector(Context context) {
super(context);
this.context = context;
init();
}
public ScrollChangeSelector(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
init();
}
private void init() {
View.inflate(context,R.layout.view_scroll_change_selector,this);
selectorListView_left = findViewById(R.id.scrollChangeSelector_listViewOfLeft);
selectorListView_center = findViewById(R.id.scrollChangeSelector_listViewOfCenter);
selectorListView_right = findViewById(R.id.scrollChangeSelector_listViewOfRight);
// setData(0,null,null);
// setLayoutParams(new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT,80*7));
}
public ScrollChangeSelectorListener getSelectorListener() {
return selectorListener;
}
public void setSelectorListener(ScrollChangeSelectorListener selectorListener) {
this.selectorListener = selectorListener;
}
public void setData(int numberOfColumn, List<String>... data){
this.numberOfColumn = numberOfColumn;
// results = new String[numberOfColumn];
clearStatus();
switch (numberOfColumn){
case 1:
initLeft(data);
selectorListView_center.setVisibility(GONE);
selectorListView_right.setVisibility(GONE);
break;
case 2:
initLeft(data);
initCenter(data);
selectorListView_right.setVisibility(GONE);
break;
case 3:
initLeft(data);
initCenter(data);
initRight(data);
break;
}
}
public void clear(){
dataOfSelector_left = null;
dataOfSelector_center = null;
dataOfSelector_right = null;
selectorAdapter_left = null;
selectorAdapter_center = null;
selectorAdapter_right = null;
selectorListView_left.setSelection(0);
selectorListView_center.setSelection(0);
selectorListView_right.setSelection(0);
// results = null;
arg0 = "";
arg1 = "";
arg2 = "";
}
private void initLeft(List<String>... data){
this.dataOfSelector_left = data[0];
if(selectorAdapter_left == null){
selectorAdapter_left = new SelectorAdapter(data[0],1);
selectorListView_left.setAdapter(selectorAdapter_left);
selectorListView_left.setOnScrollListener(onScrollListener_left);
selectorListView_left.setVisibility(VISIBLE);
selectorListView_left.smoothScrollToPosition(0);
// selectorAdapter_left.notifyDataSetChanged();
}else{
selectorAdapter_left.setData(data[0]);
}
// arg0 = selectorAdapter_left.getCenterItemInfo();
// Log.e("initLeft","arg0:"+arg0);
// if(selectorListener != null) {
// selectorListener.onSelector(arg0,arg1,arg2);
// }
this.dataOfSelector_left = selectorAdapter_left.getDataForSelector();
// selectorListView_left.setOnItemClickListener(onItemClick_left);
// selectorAdapter_left.setCallBack(callBack);
}
private void initCenter(List<String>... data){
this.dataOfSelector_center = data[1];
if(selectorAdapter_center == null){
selectorAdapter_center = new SelectorAdapter(data[1],2);
selectorListView_center.setAdapter(selectorAdapter_center);
selectorListView_center.setOnScrollListener(onScrollListener_center);
selectorListView_center.setVisibility(VISIBLE);
selectorListView_center.smoothScrollToPosition(0);
// selectorAdapter_center.notifyDataSetChanged();
}else{
selectorAdapter_center.setData(data[1]);
// selectorListView_center.setSelection(0);
}
// arg1 = selectorAdapter_center.getCenterItemInfo();
// Log.e("initLeft","arg1:"+arg1);
// if(selectorListener != null) {
// selectorListener.onSelector(arg0,arg1,arg2);
// }
this.dataOfSelector_center = selectorAdapter_center.getDataForSelector();
}
private void initRight(List<String>... data){
this.dataOfSelector_right = data[2];
if(selectorAdapter_right == null){
selectorAdapter_right = new SelectorAdapter(data[2],3);
selectorListView_right.setAdapter(selectorAdapter_right);
selectorListView_right.setOnScrollListener(onScrollListener_right);
selectorListView_right.setVisibility(VISIBLE);
selectorListView_right.smoothScrollToPosition(0);
// selectorAdapter_right.notifyDataSetChanged();
}else{
selectorAdapter_right.setData(data[2]);
// selectorListView_right.setSelection(0);
}
// arg2 = selectorAdapter_right.getCenterItemInfo();
// Log.e("initLeft","arg2:"+arg2);
// if(selectorListener != null) {
// selectorListener.onSelector(arg0,arg1,arg2);
// }
this.dataOfSelector_right = selectorAdapter_right.getDataForSelector();
}
private void clearStatus(){
selectorListView_left.setVisibility(VISIBLE);
selectorListView_center.setVisibility(VISIBLE);
selectorListView_right.setVisibility(VISIBLE);
}
public int getNumberOfColumn() {
return numberOfColumn;
}
SelectorAdapterCallBack callBack = new SelectorAdapterCallBack() {
@Override
public void onItemClick(int position) {
try {
String value = dataOfSelector_left.get(position);
selectorListView_left.smoothScrollToPosition(position - 2);
}catch (IndexOutOfBoundsException i){
}catch (NullPointerException n){}
}
};
public String getArg0() {
return arg0;
}
public String getArg1() {
return arg1;
}
public String getArg2() {
return arg2;
}
/**
* 这个handler的作用是让listView延迟归位
*/
private Handler handler = new Handler(){
@Override
public void dispatchMessage(Message msg) {
super.dispatchMessage(msg);
switch (msg.what){
case 0x1111:
specification(selectorListView_left,msg.getData().getInt("0x1111"));
break;
case 0x2222:
specification(selectorListView_center,msg.getData().getInt("0x2222"));
break;
case 0x3333:
specification(selectorListView_right,msg.getData().getInt("0x3333"));
break;
case 0x0099:
onTouchSelect = 0;
break;
}
}
};
private int viewWidth;
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
viewWidth = MeasureSpec.getSize(widthMeasureSpec);
// Log.e("onMeasure","viewWidth:"+viewWidth);
}
/**
* 当手指触碰屏幕时，判断触摸的是哪个listView
*/
private int onTouchSelect = -1;
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
switch (ev.getAction()){
case MotionEvent.ACTION_DOWN:
int downX = (int) ev.getX();
// Log.e("onMeasure","downX__:"+downX);
switch (getNumberOfColumn()){
case 1:
onTouchSelect = 1;
break;
case 2:
if(downX > 0 && downX < (viewWidth / 2)){
onTouchSelect = 1;
}
if(downX > (viewWidth / 2) && downX < viewWidth){
onTouchSelect = 2;
}
break;
case 3:
if(downX > 0 && downX < (viewWidth / 3) * 1){
onTouchSelect = 1;
}
if(downX > (viewWidth / 3) * 1 && downX < (viewWidth / 3) * 2){
onTouchSelect = 2;
}
if(downX > (viewWidth / 3) * 2 && downX < viewWidth){
onTouchSelect = 3;
}
break;
}
break;
case MotionEvent.ACTION_UP:
// onTouchSelect = 0;
postDelayed(new Runnable() {
@Override
public void run() {
延迟归位
Message msg = new Message();
msg.what = 0x0099;
handler.sendMessage(msg);
}
},150);
break;
}
return super.dispatchTouchEvent(ev);
}
/**
* firstVisibleItem:当前能看到的第一个item id
* visibleItemCount:当前能看到的item 总数
* totalItemCount:absListView中Item的总数
*/
// private String[] results;
private String arg0,arg1,arg2 = "";
AbsListView.OnScrollListener onScrollListener_left = new AbsListView.OnScrollListener() {
int firstVisibleItem;
int visibleItemCount;
int totalItemCount;
int centerItem;
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if(scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE){
postDelayed(new Runnable() {
@Override
public void run() {
Message msg = new Message();
msg.what = 0x1111;
Bundle bundle = new Bundle();
bundle.putInt("0x1111",firstVisibleItem);
msg.setData(bundle);
handler.sendMessage(msg);
}
},100);
}
}
int oldFirstVisibleItem;
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if(onTouchSelect != 1){
return;
}
this.firstVisibleItem = firstVisibleItem;
this.visibleItemCount = visibleItemCount;
this.totalItemCount = totalItemCount;
if(oldFirstVisibleItem != firstVisibleItem){
this.oldFirstVisibleItem = firstVisibleItem ;
this.centerItem = firstVisibleItem + scrollOverVisibleNum;//centerItem就是当前选中的
try {
getSelectorAdapter_left().setCenterItem(centerItem);
getSelectorAdapter_left().setFirstVisibleItem(firstVisibleItem);
getSelectorAdapter_left().setVisibleItemCount(visibleItemCount);
getSelectorAdapter_left().notifyDataSetChanged();
arg0 = ((TextView)getSelectorAdapter_left().getView(centerItem,null,null)).getText().toString();
// Log.e("onScroll","info:"+info);
if(selectorListener != null) {
selectorListener.onChangeSelector(arg0,arg1,arg2);
}
}catch (IndexOutOfBoundsException e){
}catch (NullPointerException n){}
}
}
};
AbsListView.OnScrollListener onScrollListener_center = new AbsListView.OnScrollListener() {
int firstVisibleItem;
int visibleItemCount;
int totalItemCount;
int centerItem;
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if(scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE){
postDelayed(new Runnable() {
@Override
public void run() {
Message msg = new Message();
msg.what = 0x2222;
Bundle bundle = new Bundle();
bundle.putInt("0x2222",firstVisibleItem);
msg.setData(bundle);
handler.sendMessage(msg);
}
},100);
}
}
int oldFirstVisibleItem;
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if(onTouchSelect != 2){
return;
}
this.firstVisibleItem = firstVisibleItem;
this.visibleItemCount = visibleItemCount;
this.totalItemCount = totalItemCount;
if(oldFirstVisibleItem != firstVisibleItem){
this.oldFirstVisibleItem = firstVisibleItem;
this.centerItem = firstVisibleItem + scrollOverVisibleNum;//centerItem就是当前选中的
try {
getSelectorAdapter_center().setCenterItem(centerItem);
getSelectorAdapter_center().setFirstVisibleItem(firstVisibleItem);
getSelectorAdapter_center().setVisibleItemCount(visibleItemCount);
getSelectorAdapter_center().notifyDataSetChanged();
arg1 = ((TextView)getSelectorAdapter_center().getView(centerItem,null,null)).getText().toString();
// Log.e("onScroll","info:"+info);
if(selectorListener != null) {
selectorListener.onChangeSelector(arg0,arg1,arg2);
}
}catch (IndexOutOfBoundsException e){
}catch (NullPointerException n){}
}
}
};
AbsListView.OnScrollListener onScrollListener_right = new AbsListView.OnScrollListener() {
int firstVisibleItem;
int visibleItemCount;
int totalItemCount;
int centerItem;
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if(scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE){
postDelayed(new Runnable() {
@Override
public void run() {
Message msg = new Message();
msg.what = 0x3333;
Bundle bundle = new Bundle();
bundle.putInt("0x3333",firstVisibleItem);
msg.setData(bundle);
handler.sendMessage(msg);
}
},100);
}
}
int oldFirstVisibleItem;
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if(onTouchSelect != 3){
return;
}
this.firstVisibleItem = firstVisibleItem;
this.visibleItemCount = visibleItemCount;
this.totalItemCount = totalItemCount;
if(oldFirstVisibleItem != firstVisibleItem){
this.oldFirstVisibleItem = firstVisibleItem;
this.centerItem = firstVisibleItem + scrollOverVisibleNum;//centerItem就是当前选中的
try {
getSelectorAdapter_right().setCenterItem(centerItem);
getSelectorAdapter_right().setFirstVisibleItem(firstVisibleItem);
getSelectorAdapter_right().setVisibleItemCount(visibleItemCount);
getSelectorAdapter_right().notifyDataSetChanged();
arg2 = ((TextView)getSelectorAdapter_right().getView(centerItem,null,null)).getText().toString();
// Log.e("onScroll","info:"+info);
if(selectorListener != null) {
selectorListener.onChangeSelector(arg0,arg1,arg2);
}
}catch (IndexOutOfBoundsException e){
}catch (NullPointerException n){}
}
}
};
/**
* 规范这些item
*/
public void specification(ListView listView,int position){
// listView.smoothScrollBy();
// listView.smoothScrollToPosition(position);
listView.setSelection(position);
}
/**
* item翻转动画
*/
private ValueAnimator itemRotationAnimator;
private int animatorDuration = 200;//动画时长
private final void itemRotationAnimator(final TextView itemTv,final int start,final int end){
itemRotationAnimator = new ValueAnimator().ofInt(start,end);
itemRotationAnimator.setDuration(animatorDuration);
itemRotationAnimator.setRepeatCount(0);
itemRotationAnimator.setInterpolator(new LinearInterpolator());
itemRotationAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int value = (int) animation.getAnimatedValue();
itemTv.setRotationX(value);
if(value == end){
itemTv.clearAnimation();
}
}
});
itemRotationAnimator.start();
}
public List<String> getDataOfSelector_left() {
return dataOfSelector_left;
}
public List<String> getDataOfSelector_center() {
return dataOfSelector_center;
}
public List<String> getDataOfSelector_right() {
return dataOfSelector_right;
}
public ListView getSelectorListView_left() {
return selectorListView_left;
}
public ListView getSelectorListView_center() {
return selectorListView_center;
}
public ListView getSelectorListView_right() {
return selectorListView_right;
}
public SelectorAdapter getSelectorAdapter_left() {
if(selectorAdapter_left == null){
return new SelectorAdapter();
}
return selectorAdapter_left;
}
public SelectorAdapter getSelectorAdapter_center() {
return selectorAdapter_center;
}
public SelectorAdapter getSelectorAdapter_right() {
return selectorAdapter_right;
}
public int getScrollOverVisibleNum() {
return scrollOverVisibleNum;
}
class SelectorAdapter extends BaseAdapter{
private List<String> dataForSelector;
private int itemViewHeight = 80;
private int centerItem = 3;
private int firstVisibleItem;
private int visibleItemCount;
private SelectorAdapterCallBack callBack;
private String centerItemInfo = "";
private int type = 0;
public SelectorAdapter(){}
public SelectorAdapter(List<String> dataForSelector,int type){
if(dataForSelector == null){
return;
}
this.type = type;
this.dataForSelector = dataForSelector;
/**
* 设置数据后增加一点操作，目的增加一个过度滚动
*/
for(int i = 0 ; i < scrollOverVisibleNum ; i ++){
this.dataForSelector.add(i,"");
}
for(int i = 0 ; i < scrollOverVisibleNum ; i ++){
this.dataForSelector.add("");
}
}
private List<String> oldData;
public void setData(List<String> dataForSelector){
if(dataForSelector == null){
return;
}
if(this.dataForSelector != dataForSelector){
this.dataForSelector = dataForSelector;
/**
* 设置数据后增加一点操作，目的增加一个过度滚动
*/
for(int i = 0 ; i < scrollOverVisibleNum ; i ++){
this.dataForSelector.add(i,"");
}
for(int i = 0 ; i < scrollOverVisibleNum ; i ++){
this.dataForSelector.add("");
}
notifyDataSetChanged();
}
}
public String getCenterItemInfo() {
return centerItemInfo;
}
public SelectorAdapterCallBack getCallBack() {
return callBack;
}
public void setCallBack(SelectorAdapterCallBack callBack) {
this.callBack = callBack;
}
public List<String> getDataForSelector() {
return dataForSelector;
}
public int getItemViewHeight() {
return itemViewHeight;
}
public int getCenterItem() {
return centerItem;
}
public void setCenterItem(int centerItem) {
this.centerItem = centerItem;
}
public void setItemViewHeight(int itemViewHeight) {
this.itemViewHeight = itemViewHeight;
}
public int getFirstVisibleItem() {
return firstVisibleItem;
}
public void setFirstVisibleItem(int firstVisibleItem) {
this.firstVisibleItem = firstVisibleItem;
}
public int getVisibleItemCount() {
return visibleItemCount;
}
public void setVisibleItemCount(int visibleItemCount) {
this.visibleItemCount = visibleItemCount;
}
@Override
public int getCount() {
return dataForSelector.size();
}
@Override
public Object getItem(int position) {
return dataForSelector.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
TextView itemTv = null;
try {
itemTv = new TextView(context);
ListView.LayoutParams itemTvParams =
new ListView.LayoutParams(ListView.LayoutParams.MATCH_PARENT,itemViewHeight);
itemTv.setGravity(Gravity.CENTER);
itemTv.setTextSize(itemTvSize);
itemTv.setBackgroundColor(Color.WHITE);
itemTv.setText(dataForSelector.get(position));
// this.centerItemInfo = dataForSelector.get(position);
itemTv.setLayoutParams(itemTvParams);
if(centerItem == position){
// Log.e("initLeft","arg0:"+dataForSelector.get(position));
if(type == 1){
arg0 = dataForSelector.get(position);
}
if(type == 2){
arg1 = dataForSelector.get(position);
}
if(type == 3){
arg2 = dataForSelector.get(position);
}
itemTv.setTextColor(ContextCompat.getColor(context,R.color.themeColor));
}else{
itemTv.setTextColor(ContextCompat.getColor(context,R.color.textColor_low));
}
if(position == firstVisibleItem+ 2){
itemRotationAnimator(itemTv,90 - 25 - 25 ,90 - 25 - 25 -25);
}
if(position == firstVisibleItem + 1){
itemRotationAnimator(itemTv,90 - 25,90 - 25 - 25);
}
if(position == firstVisibleItem){
itemRotationAnimator(itemTv,90,90 - 25);
}
if(position == centerItem + 1){
itemRotationAnimator(itemTv,0,0 - 25);
}
if(position == centerItem + 2){
itemRotationAnimator(itemTv,0 - 25,0 - 25 - 25 );
}
if(position == centerItem + 3){
itemRotationAnimator(itemTv,0 - 25 - 25 ,0 - 25 - 25 -25);
}
// itemTv.setOnClickListener(new OnClickListener() {
// @Override
// public void onClick(View v) {
// if(callBack != null){
// callBack.onItemClick(position);
// }
// }
// });
}catch (StackOverflowError e){}
return itemTv;
}
}
public interface SelectorAdapterCallBack{
public void onItemClick(int position);
}
/**
* 回调监听
*/
public interface ScrollChangeSelectorListener{
public void onChangeSelector(String arg0,String arg1,String arg2);
public void onSelector(String arg0,String arg1,String arg2);
}
}
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