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我有一個自定義列表視圖，其中包括具有向左或向右滑動功能的項目... 問題是，當我在列表視圖上滑動可見項目時，左或右分別。我怎樣才能防止屏幕項目的輕掃？自定義列表查看關屏幕位置
public class TestListViewAdapter extends BaseAdapter {
Context context;
ArrayList<RowItem> arrayList;
LayoutInflater layoutInflater;
public TestListViewAdapter(Context context,ArrayList<RowItem> arrayList,DataSource dataSource){
this.context = context;
this.arrayList =arrayList;
layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return arrayList.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if(convertView == null) {
convertView = layoutInflater.inflate(R.layout.list_item, parent, false);
holder = new ViewHolder();
holder.txtTitle = (TextView)convertView.findViewById(R.id.handle_c);
convertView.setTag(holder);
}else{
holder = (ViewHolder)convertView.getTag();
}
holder.txtTitle.setText(arrayList.get(position).getTitle());
if(arrayList.get(position).getleft()) {
//txtTitle.setGravity(Gravity.RIGHT);
setMargins(holder.txtTitle, px2dp(55), 0, 0,0);
}else {
//txtTitle.setGravity(Gravity.RIGHT);
setMargins(holder.txtTitle, 0,0,px2dp(55),0);
}
convertView.setOnTouchListener(new OnSwipeTouchListener(context) {
@Override
public void onSwipeLeft(View view) {
if (arrayList.get(position).getleft()){
arrayList.get(position).setleft(false);
Animation animationtranslate_left = new TranslateAnimation(px2dp(55+arrayList.get(position).getPX()),px2dp(0+arrayList.get(position).getPX()),0,0);
animationtranslate_left.setDuration(100);
//animationtranslate.setFillAfter(true);
//Animation anim = AnimationUtils.loadAnimation(getContext(), R.anim.left_swipe);
try {
view.clearAnimation();
} catch (Exception e) {
}
if (view != null)
view.startAnimation(animationtranslate_left);
else
Log.e("View null", "Null");
animationtranslate_left.setFillAfter(true);
}
}
@Override
public void onSwipeRight(View view) {
if (!arrayList.get(position).getleft()) {
arrayList.get(position).setleft(true);
Animation animationtranslate_rigth = new TranslateAnimation(px2dp(0+arrayList.get(position).getPX()),px2dp(55+arrayList.get(position).getPX()),0 , 0);
animationtranslate_rigth. setDuration(100);
//animationtranslate.setFillAfter(true);
//Animation anim = AnimationUtils.loadAnimation(getContext(), R.anim.left_swipe);
try {
view.clearAnimation();
} catch (Exception e) {
}
if (view != null)
view.startAnimation(animationtranslate_rigth);
else
Log.e("View null", "Null");
animationtranslate_rigth.setFillAfter(true);
}
});
return convertView;
}
private class Detector extends GestureDetector {
View view;
public Detector(Context context, OnGestureListener listener) {
super(context, listener);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
return super.onTouchEvent(ev);
}
public boolean onTouch(MotionEvent ev, View view) {
this.view = view.findViewById(R.id.handle_c);
return onTouchEvent(ev);
}
public View getView() {
return view;
}
private void setView(View view) {
this.view = view;
}
}
public class OnSwipeTouchListener implements View.OnTouchListener {
private final Detector gestureDetector;
public OnSwipeTouchListener(Context context) {
gestureDetector = (Detector) new Detector(context, new GestureListener());
}
public void onSwipeLeft(View view) {
}
public void onSwipeRight(View view) {
}
public boolean onTouch(View v, MotionEvent event) {
return gestureDetector.onTouch(event, v);
}
private final class GestureListener extends Detector.SimpleOnGestureListener {
//private static final int SWIPE_MIN_DISTANCE = 20;
//private static final int SWIPE_MAX_OFF_PATH = 250;
//private static final int SWIPE_THRESHOLD_VELOCITY = 200;
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
float ydis = e1.getY() - e2.getY();
if (ydis > 70) {
return super.onScroll(e1, e2, distanceX, distanceY);
} else {
if (e1.getX() - e2.getX() > 0) {
onSwipeLeft(gestureDetector.getView());
} else if (e1.getX() - e2.getX() < 0) {
onSwipeRight(gestureDetector.getView());
}
return false;
}
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
try {
System.out.println("X1- " + e1.getX() + " X2- " + e2.getX() + " Y1- " + e1.getY() + " Y2- " + e2.getY());
if (e1.getX() - e2.getX() > 0) {
onSwipeLeft(gestureDetector.getView());
} else if (e1.getX() - e2.getX() < 0) {
onSwipeRight(gestureDetector.getView());
}
} catch (Exception e) {
Log.e("Home", "Error on gestures");
}
return false;
}
}
}
class ViewHolder{
TextView txtTitle;
}
public class RowItem {
private String title,id,name,number,primeri_id;
private boolean left;
private int px;
public boolean getleft(){return left;}
public int getPX(){return px;}
public void setleft(boolean b){left=b;}
public RowItem(boolean bl,String t,String id,String primeri_id){
title=t;
left=bl;
this.id = id;
this.primeri_id = primeri_id;
px=bl? -55:0;
}
public RowItem(String name ,String number){
this.name = name;
this.number= number;
}
public String getPrimeri_id() {
return primeri_id;
}
public void setPrimeri_id(String primeri_id) {
this.primeri_id = primeri_id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
}