Android 在RecyclerView+;FastAdapter,在单击项目时
在使用FastAdapter和ConstraintLayout的应用程序中,我会显示已完成游戏的列表(请原谅屏幕截图中的非英语字符): 当应用程序用户单击列表中的某个项目(项目中的任何位置)时,我希望显示一个带有方形游戏板的图像视图,并将正图像视图更改为负图像视图: 为此,我已经准备了一种方法:Android 在RecyclerView+;FastAdapter,在单击项目时,android,android-layout,animation,android-recyclerview,fastadapter,Android,Android Layout,Animation,Android Recyclerview,Fastadapter,在使用FastAdapter和ConstraintLayout的应用程序中,我会显示已完成游戏的列表(请原谅屏幕截图中的非英语字符): 当应用程序用户单击列表中的某个项目(项目中的任何位置)时,我希望显示一个带有方形游戏板的图像视图,并将正图像视图更改为负图像视图: 为此,我已经准备了一种方法: private void toggleDetails() { if (mBoard.getVisibility() == View.GONE) { mBoard.setVis
private void toggleDetails() {
if (mBoard.getVisibility() == View.GONE) {
mBoard.setVisibility(View.VISIBLE);
mDetails.setImageResource(R.drawable.minus_circle_gray);
} else {
mBoard.setVisibility(View.GONE);
mDetails.setImageResource(R.drawable.plus_circle_gray);
}
}
然而,我的问题是,我不确定在哪里调用该方法
我应该向fast adapter对象添加一个单击侦听器,还是应该将其添加到我的视图持有者
另外,当看这个例子时,我注意到有一些动画,我想知道如何动画我的mBoard图像视图的披露
以下是我当前的源代码:
public class FinishedGameItem extends AbstractItem<FinishedGameItem, FinishedGameItem.ViewHolder> {
private final static String WON = "won";
private final static String LOST = "lost";
public long stamp;
public int gid;
public int score1;
public int score2;
public int elo1;
public int elo2;
public String state1;
public String finished;
public String given1;
public String given2;
public String photo1;
public String photo2;
@Override
public int getType() {
return R.id.finished_game_item_id;
}
@Override
public int getLayoutRes() {
return R.layout.item_finished_game;
}
@NonNull
@Override
public ViewHolder getViewHolder(@NonNull View v) {
return new ViewHolder(v);
}
protected static class ViewHolder extends FastAdapter.ViewHolder<FinishedGameItem> {
private ImageView mDetails;
private TextView mGid;
private TextView mFinished;
private TextView mScore1;
private TextView mScore2;
private TextView mGiven1;
private TextView mGiven2;
private TextView mElo1;
private TextView mElo2;
private ImageView mPhoto1;
private ImageView mPhoto2;
private ImageView mBoard;
public ViewHolder(View view) {
super(view);
mDetails = view.findViewById(R.id.details);
mGid = view.findViewById(R.id.gid);
mFinished = view.findViewById(R.id.finished);
mScore1 = view.findViewById(R.id.score1);
mScore2 = view.findViewById(R.id.score2);
mGiven1 = view.findViewById(R.id.given1);
mGiven2 = view.findViewById(R.id.given2);
mElo1 = view.findViewById(R.id.elo1);
mElo2 = view.findViewById(R.id.elo2);
mPhoto1 = view.findViewById(R.id.photo1);
mPhoto2 = view.findViewById(R.id.photo2);
mBoard = view.findViewById(R.id.board);
}
@Override
public void bindView(@NonNull FinishedGameItem item, @NonNull List<Object> payloads) {
Context ctx = mDetails.getContext();
Resources res = mDetails.getResources();
String result = (WON.equals(item.state1) ? "Victory" : (LOST.equals(item.state1) ? "Loss" : "Draw"));
mDetails.setImageResource(R.drawable.plus_circle_gray);
mBoard.setVisibility(View.GONE);
mGid.setText(r.getString(R.string.str_game, item.gid));
mFinished.setText(result + " / " + item.finished);
mScore1.setText(res.getString(R.string.str_score, item.score1));
mScore2.setText(res.getString(R.string.str_score, item.score2));
mGiven1.setText(item.given1);
mGiven2.setText(item.given2);
mElo1.setText(String.valueOf(item.elo1));
mElo2.setText(String.valueOf(item.elo2));
if (URLUtil.isHttpsUrl(item.photo1)) {
Picasso.with(ctx))
.load(item.photo1)
.placeholder(R.drawable.account_gray)
.into(mPhoto1);
}
if (URLUtil.isHttpsUrl(item.photo2)) {
Picasso.with(ctx)
.load(item.photo2)
.placeholder(R.drawable.account_gray)
.into(mPhoto2);
}
Picasso.with(ctx)
.load("http://slova.de/words/board2.php?gid=" + item.gid)
.placeholder(R.drawable.checkerboard_gray)
.into(mBoard);
}
@Override
public void unbindView(@NonNull FinishedGameItem item) {
Context ctx = mDetails.getContext();
Picasso.with(ctx).cancelRequest(mPhoto1);
Picasso.with(ctx).cancelRequest(mPhoto2);
Picasso.with(ctx).cancelRequest(mBoard);
mDetails.setImageDrawable(null);
mGid.setText(null);
mFinished.setText(null);
mScore1.setText(null);
mScore2.setText(null);
mGiven1.setText(null);
mGiven2.setText(null);
mElo1.setText(null);
mElo2.setText(null);
mPhoto1.setImageDrawable(null);
mPhoto2.setImageDrawable(null);
mBoard.setImageDrawable(null);
}
// WHERE TO CALL THIS METHOD AND HOW TO ANIMATE?
private void toggleDetails() {
if (mBoard.getVisibility() == View.GONE) {
mBoard.setVisibility(View.VISIBLE);
mDetails.setImageResource(R.drawable.minus_circle_gray);
} else {
mBoard.setVisibility(View.GONE);
mDetails.setImageResource(R.drawable.plus_circle_gray);
}
}
}
}
mFastAdapter.withSelectable(true);
mFastAdapter.withOnClickListener(new OnClickListener<FinishedGameItem>() {
@Override
public boolean onClick(View v, @NonNull IAdapter<FinishedGameItem> adapter, @NonNull FinishedGameItem item, int position) {
item.details = !item.details;
// THIS METHOD IS CALLED IN DEBUGGER, BUT VIEWS ARE NOT UPDATED
return true;
}
});
这里是更改后的FinishedGameItem模型:
public class FinishedGameItem extends AbstractItem<FinishedGameItem, FinishedGameItem.ViewHolder> {
private final static String WON = "won";
private final static String LOST = "lost";
public boolean details; // TRIED TO ADD THIS BOOLEAN
public long stamp;
public int gid;
public int score1;
public int score2;
public int elo1;
public int elo2;
public String state1;
public String finished;
public String given1;
public String given2;
public String photo1;
public String photo2;
@Override
public int getType() {
return R.id.finished_game_item_id;
}
@Override
public int getLayoutRes() {
return R.layout.item_finished_game;
}
@NonNull
@Override
public ViewHolder getViewHolder(@NonNull View v) {
return new ViewHolder(v);
}
protected static class ViewHolder extends FastAdapter.ViewHolder<FinishedGameItem> {
private ImageView mDetails;
private TextView mGid;
private TextView mFinished;
private TextView mScore1;
private TextView mScore2;
private TextView mGiven1;
private TextView mGiven2;
private TextView mElo1;
private TextView mElo2;
private ImageView mPhoto1;
private ImageView mPhoto2;
private ImageView mBoard;
public ViewHolder(View view) {
super(view);
mDetails = view.findViewById(R.id.details);
mGid = view.findViewById(R.id.gid);
mFinished = view.findViewById(R.id.finished);
mScore1 = view.findViewById(R.id.score1);
mScore2 = view.findViewById(R.id.score2);
mGiven1 = view.findViewById(R.id.given1);
mGiven2 = view.findViewById(R.id.given2);
mElo1 = view.findViewById(R.id.elo1);
mElo2 = view.findViewById(R.id.elo2);
mPhoto1 = view.findViewById(R.id.photo1);
mPhoto2 = view.findViewById(R.id.photo2);
mBoard = view.findViewById(R.id.board);
}
@Override
public void bindView(@NonNull FinishedGameItem item, @NonNull List<Object> payloads) {
Context ctx = mDetails.getContext();
Resources res = mDetails.getResources();
String result = (WON.equals(item.state1) ? "Victory" : (LOST.equals(item.state1) ? "Loss" : "Draw"));
mDetails.setImageResource(item.details ? R.drawable.minus_circle_gray : R.drawable.plus_circle_gray);
mBoard.setVisibility(item.details ? View.VISIBLE : View.GONE);
mGid.setText(res.getString(R.string.str_game, item.gid));
mFinished.setText(result + " / " + item.finished);
mScore1.setText(res.getString(R.string.str_score, item.score1));
mScore2.setText(res.getString(R.string.str_score, item.score2));
mGiven1.setText(item.given1);
mGiven2.setText(item.given2);
mElo1.setText(String.valueOf(item.elo1));
mElo2.setText(String.valueOf(item.elo2));
if (URLUtil.isHttpsUrl(item.photo1)) {
Picasso.with(ctx)
.load(item.photo1)
.placeholder(R.drawable.account_gray)
.into(mPhoto1);
}
if (URLUtil.isHttpsUrl(item.photo2)) {
Picasso.with(ctx)
.load(item.photo2)
.placeholder(R.drawable.account_gray)
.into(mPhoto2);
}
if (item.details) {
Picasso.with(ctx)
.load("http://slova.de/words/board2.php?gid=" + item.gid)
.placeholder(R.drawable.checkerboard_gray)
.into(mBoard);
}
}
@Override
public void unbindView(@NonNull FinishedGameItem item) {
Context ctx = mDetails.getContext();
Picasso.with(ctx).cancelRequest(mPhoto1);
Picasso.with(ctx).cancelRequest(mPhoto2);
Picasso.with(ctx).cancelRequest(mBoard);
mDetails.setImageDrawable(null);
mGid.setText(null);
mFinished.setText(null);
mScore1.setText(null);
mScore2.setText(null);
mGiven1.setText(null);
mGiven2.setText(null);
mElo1.setText(null);
mElo2.setText(null);
mPhoto1.setImageDrawable(null);
mPhoto2.setImageDrawable(null);
mBoard.setImageDrawable(null);
}
}
}
公共类FinishedGameItem扩展了AbstractItem{
私有最终静态字符串WON=“WON”;
私有最终静态字符串LOST=“LOST”;
public boolean details;//尝试添加此布尔值
公众长邮票;
公共信息gid;
公共关系科1;
公共关系2;
公共国际1;
公共国际2;
公共字符串状态1;
公共字符串已完成;
公共字符串1;
公共字符串2;
公共字符串1;
公共字符串2;
@凌驾
公共int getType(){
返回R.id.finished\u game\u item\u id;
}
@凌驾
公共int getLayoutRes(){
返回R.layout.item\u已完成\u游戏;
}
@非空
@凌驾
public ViewHolder getViewHolder(@NonNull View v){
返回新的视图持有者(v);
}
受保护的静态类ViewHolder扩展了FastAdapter.ViewHolder{
私有ImageView mDetails;
私有文本视图mGid;
私有文本视图已完成;
私有文本视图mScore1;
私有文本视图mScore2;
私有文本视图mGiven1;
私有文本视图mGiven2;
私有文本视图mElo1;
私有文本视图mElo2;
私有ImageView mPhoto1;
私有ImageView mPhoto2;
私人影象阅览室;
公共视图持有者(视图){
超级(视图);
mDetails=view.findviewbyd(R.id.details);
mGid=view.findviewbyd(R.id.gid);
mFinished=view.findviewbyd(R.id.finished);
mScore1=view.findViewById(R.id.score1);
mScore2=view.findviewbyd(R.id.score2);
mGiven1=view.findviewbyd(R.id.given1);
mGiven2=view.findViewById(R.id.given2);
mElo1=view.findViewById(R.id.elo1);
mElo2=视图.findViewById(R.id.elo2);
mPhoto1=view.findviewbyd(R.id.photo1);
mPhoto2=view.findviewbyd(R.id.photo2);
mBoard=view.findViewById(R.id.board);
}
@凌驾
public void bindView(@NonNull FinishedGameItem项,@NonNull列表有效负载){
Context ctx=mDetails.getContext();
Resources res=mDetails.getResources();
字符串结果=(赢了.equals(item.state1)?“胜利”:(输了.equals(item.state1)?“输了”:“平局”);
mDetails.setImageResource(item.details?R.drawable.减号圆圈\灰色:R.drawable.plus圆圈\灰色);
mBoard.setVisibility(item.details?View.VISIBLE:View.GONE);
mGid.setText(res.getString(R.string.str_game,item.gid));
mFinished.setText(结果+“/”+项.finished);
mScore1.setText(res.getString(R.string.str_score,item.score1));
mScore2.setText(res.getString(R.string.str_score,item.score2));
mGiven1.SETEXT(项目1);
mGiven2.SETEXT(项目2);
mElo1.setText(String.valueOf(item.elo1));
mElo2.setText(String.valueOf(item.elo2));
if(URLUtil.isHttpsUrl(项目1)){
毕加索(ctx)
.装载(项目1)
.占位符(R.可提取.帐户\U灰色)
.into(mPhoto1);
}
if(URLUtil.isHttpsUrl(项目2)){
毕加索(ctx)
.装载(项目2)
.占位符(R.可提取.帐户\U灰色)
.into(mPhoto2);
}
若有(项目详情){
毕加索(ctx)
.加载(“http://slova.de/words/board2.php?gid=“+item.gid)
.占位符(R.可绘制.棋盘格\ U灰色)
.进入(姆博德);
}
}
@凌驾
public void unbindView(@NonNull FinishedGameItem){
Context ctx=mDetails.getContext();
毕加索.with(ctx).cancelRequest(mPhoto1);
毕加索.with(ctx).cancelRequest(mPhoto2);
毕加索.with(ctx).cancelRequest(mBoard);
mDetails.setImageDrawable(空);
mGid.setText(空);
mFinished.setText(空);
mScore1.setText(空);
mScore2.setText(空);
mGiven1.setText(空);
mGiven2.setText(空);
mElo1.setText(null);
mElo2.setText(空);
mPhoto1.setImageDrawable(空);
mPhoto2.setImageDrawable(空);
mBoard.setImageDrawable(空);
}
}
}
该应用程序工作正常,但不稳定:
根据您的代码判断,您可能忘记实际告诉适配器您的支持型号(
FinishedGameItem
)已更改。调用notifyItemChanged(position)可能会有所帮助
mFastAdapter.withSelectable(true);
mFastAdapter.withOnClickListener(new OnClickListener<FinishedGameItem>() {
@Override
public boolean onClick(View v, @NonNull IAdapter<FinishedGameItem> adapter, @NonNull FinishedGameItem item, int position) {
item.details = !item.details;
mFastAdapter.notifyItemChanged(position);
return true;
}
});
mfasAdapter.with selectable(true);
withOnClickListener(新的OnClickListener(){
@凌驾
公共布尔onClick(视图v、@NonNull IAdapter适配器、@NonNull FinishedGameItem项、int位置){
item.details=!item.details;
mFastAdapter.notifyItemChanged(假定