我正在制作一个请假管理应用程序,我想使我的请假清单布局像图像中所示,我想在数据库状态更改时更改清单视图的颜色。现在,我只是添加简单的文本视图来显示列表,但我想像图像一样对其进行修改,如果您给我代码,这对我真的很有帮助。
这是我的Java代码适配器:
@NonNull
@Override
public LeaveViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.leave_list, null);
view.setLayoutParams(new RecyclerView.LayoutParams(RecyclerView.LayoutParams.MATCH_PARENT, RecyclerView.LayoutParams.WRAP_CONTENT));
LeaveViewHolder viewHolder = new LeaveViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(@NonNull LeaveViewHolder holder, int position) {
LeaveModel leave = leaveList.get(position);
holder.tVFrom_date.setText("From: " + leave.getFrom_date());
holder.tVTo_date.setText("To: " + leave.getTo_date());
holder.tVStatus.setText("Status: " + leave.getLeavestatus());
if (holder.tVStatus == null) {
} else {
}
}
@Override
public int getItemCount() {
return leaveList.size();
}
public class LeaveViewHolder extends RecyclerView.ViewHolder {
protected TextView tVFrom_date, tVTo_date, tVStatus;
public View container;
public LeaveViewHolder(View itemView) {
super(itemView);
tVFrom_date = itemView.findViewById(R.id.tVFrom_date);
tVTo_date = itemView.findViewById(R.id.tVTo_date);
tVStatus = itemView.findViewById(R.id.tVStatus);
}
}
这是我的Xml布局:
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardCornerRadius="5dp"
card_view:cardElevation="5dp"
card_view:cardPreventCornerOverlap="false"
card_view:cardUseCompatPadding="true">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingEnd="6dp"
android:paddingStart="6dp">
<TextView
android:id="@+id/tVFrom_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:textColor="@color/Black"/>
<TextView
android:id="@+id/tVTo_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/tVFrom_date"
android:layout_marginTop="5dp"
android:textColor="@color/Black"/>
<TextView
android:id="@+id/tVStatus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/tVTo_date"
android:layout_marginTop="5dp"
android:textColor="@color/Red"
android:textStyle="bold" />
</RelativeLayout>
</android.support.v7.widget.CardView>
最佳答案
我已经在您的布局中添加了图像视图,因此请更改此图像视图的颜色
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardCornerRadius="5dp"
card_view:cardElevation="5dp"
card_view:cardPreventCornerOverlap="true"
card_view:cardUseCompatPadding="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="@+id/img_LeaveAdapter_highlight"
android:layout_width="8dp"
android:layout_height="match_parent"
android:background="@color/colorPrimary" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingEnd="6dp"
android:paddingStart="6dp">
<TextView
android:id="@+id/tVFrom_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:textColor="@color/Black" />
<TextView
android:id="@+id/tVTo_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/tVFrom_date"
android:layout_marginTop="5dp"
android:textColor="@color/Black"
/>
<TextView
android:id="@+id/tVStatus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/tVTo_date"
android:layout_marginTop="5dp"
android:textColor="@color/Red"
android:textStyle="bold" />
</RelativeLayout>
</LinearLayout>
我创建了适配器只是为了您的理解
public class LeaveAdapter extends RecyclerView.Adapter<LeaveAdapter.MyViewHolder> {
Activity activity;
ArrayList<LeaveModel> list;
public LeaveAdapter(Activity activity, ArrayList<LeaveModel> list) {
this.activity = activity;
this.list = list;
}
@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View rootView = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_leaveadapter, parent, false);
return new MyViewHolder(rootView);
}
@Override
public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
String leaveStatus = list.get(position).getLeaveStatus();
if (leaveStatus.equals("Panding for approval")) {
holder.img_LeaveAdapter_highlight.setBackgroundColor(ContextCompat.getColor(activity, R.color.Red));
} else if (leaveStatus.equals("Approved")) {
holder.img_LeaveAdapter_highlight.setBackgroundColor(ContextCompat.getColor(activity, R.color.Green));
}
}
@Override
public int getItemCount() {
return list.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
ImageView img_LeaveAdapter_highlight;
public MyViewHolder(View itemView) {
super(itemView);
img_LeaveAdapter_highlight = itemView.findViewById(R.id.img_LeaveAdapter_highlight);
}
}
}