我正在尝试在应用中实现类似功能,这是回收视图中Viewholder的代码段。
回收站自定义适配器
public class PostAdapterViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView title,user,description,tag,time,designation;
Long date;
ImageView imageView,bookmark,profilepic,sharebutton,like;
RelativeLayout head;
LinearLayout content;
DatabaseReference reference;
Context context;
String name;
public void setContext(Context context) {
this.context = context;
}
public PostAdapterViewHolder (final View itemView) {
super(itemView);
itemView.setOnClickListener(this);
head = (RelativeLayout) itemView.findViewById(R.id.head);
content = (LinearLayout) itemView.findViewById(R.id.content);
imageView =(ImageView)itemView.findViewById(R.id.imageview);
designation = (TextView) itemView.findViewById(R.id.designation);
like =(ImageView)itemView.findViewById(R.id.like);
profilepic = (ImageView) itemView.findViewById(R.id.imageView2);
bookmark =(ImageView)itemView.findViewById(R.id.bookmark);
title = (TextView) itemView.findViewById(R.id.title);
description = (TextView) itemView.findViewById(R.id.description);
time = (TextView) itemView.findViewById(R.id.date);
tag = (TextView) itemView.findViewById(R.id.tag);
sharebutton = (ImageView) itemView.findViewById(R.id.sharebutton);
user = (TextView) itemView.findViewById(R.id.username);
like.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ImageView i = (ImageView) itemView.findViewById(R.id.like);
Drawable a = i.getBackground();
if (a.getConstantState().equals(context.getDrawable(R.drawable.emptyup).getConstantState())){
i.setImageDrawable(context.getDrawable(R.drawable.fillup));
} else {
i.setImageDrawable(context.getDrawable(R.drawable.emptyup));
}
}
});
}
}
}
01-09 10:43:45.747 6602-6602 / ctize.connectplus.com.communitize E / AndroidRuntime:致命异常:main流程:ctize.connectplus.com.communitize,PID:6602android.content.res.Resources $ NotFoundException:资源ID#0x7f07007e在android.content.res.Resources.getValue(Resources.java:1397)在android.content.res.Resources.getDrawable(Resources.java:843)在android.content.Context.getDrawable(Context.java:458)在ctize.connectplus.com.communitize.PostAdapterViewHolder $ 2.onClick(PostAdapterViewHolder.java:98)在android.view.View.performClick(View.java:5226)在android.view.View $ PerformClick.run(View.java:21350)在android.os.Handler.handleCallback(Handler.java:739)在android.os.Handler.dispatchMessage(Handler.java:95)在android.os.Looper.loop(Looper.java:148)在android.app.ActivityThread.main(ActivityThread.java:5582)在java.lang.reflect.Method.invoke(本机方法)在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:726)在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
通过查看日志。问题出在您的drawable
背景中。您具有X24
类型的图像,请对其进行更改,它将解决您的问题。
第二件事是您一次看到两个图像。因此,您需要删除在.xml
文件中设置的背景,一切顺利。
您正在使用context.getDrawable(R.drawable.fillup)
,仅在高于[[LOLLIPOP的版本中可用。用context.getResources().getDrawable(R.drawable.fillup)
从资源中获取图像。
<CheckBox android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="new checkbox"
android:background="@drawable/checkbox_background"
android:button="@drawable/checkbox" />
尝试使用复选框而不是ImageView
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_checked="true" android:state_focused="true" android:drawable="@drawable/fillup" /> <item android:state_checked="false" android:state_focused="true" android:drawable="@drawable/emptyup" /> <item android:state_checked="false" android:drawable="@drawable/emptyup" /> <item android:state_checked="true" android:drawable="@drawable/fillup" /> </selector>
如果(a.getConstantState()。equals(context.getDrawable(R.drawable.emptyup).getConstantState()))[
i.setImageDrawable(context.getDrawable(R.drawable.fillup)); } else { i.setImageDrawable(context.getDrawable(R.drawable.emptyup)); }
由于您的android版本问题,这些行给您错误。