HomeworkSelectActivity.java
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package com.hjx.parent;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.content.res.ColorStateList;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.DrawableRes;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.content.res.ResourcesCompat;
import androidx.lifecycle.MutableLiveData;
import com.bumptech.glide.Glide;
import com.chad.library.adapter.base.BaseQuickAdapter;
import com.chad.library.adapter.base.BaseViewHolder;
import com.hjx.parent.databinding.ActivityHomeworkSelectBinding;
import com.hjx.parent.function.Function1;
import com.hjx.parent.rx.BaseRxActivity;
import com.prws.common.bean.Student;
import com.prws.common.bean.homework.HomeWork;
import com.prws.common.bean.homework.HomeworkList;
import java.util.ArrayList;
public class HomeworkSelectActivity extends BaseRxActivity<ActivityHomeworkSelectBinding> {
private Student student;
private HomeworkList mData;
private ArrayList<HomeWork> mList;
private Adapter mAdapter = new Adapter();
MutableLiveData<Integer> selectNum = new MutableLiveData<>(0);
@SuppressLint("NotifyDataSetChanged")
@SuppressWarnings("unchecked,ConstantConditions")
@Override
public void initView(Bundle savedInstanceState) {
binding.toolbar.setNavigationOnClickListener(v -> onBackPressed());
student = (Student) getIntent().getSerializableExtra("student");
mData = (HomeworkList) getIntent().getSerializableExtra("data");
mList = (ArrayList<HomeWork>) getIntent().getSerializableExtra("list");
mAdapter.setNewData(mList);
binding.recyclerView.setAdapter(mAdapter);
mAdapter.selectCall = i -> selectNum.setValue(selectNum.getValue() + i);
selectNum.observe(this, i -> {
binding.tvNumber.setText(String.valueOf(i));
if (i == 0) {
binding.btnConfirm.setText("作业全对");
binding.btnConfirm.setBackgroundTintList(ColorStateList.valueOf(0xFF4ABC78));
} else {
binding.btnConfirm.setText("下一步");
binding.btnConfirm.setBackgroundTintList(ColorStateList.valueOf(0xFF1C90F3));
}
binding.chkAll.setChecked(i == mList.size() && i != 0);
});
binding.chkAll.setOnClickListener(v -> {
if (mList.size() == 0) return;
boolean b = binding.chkAll.isChecked();
for (HomeWork item: mList) {
item.check = b;
}
selectNum.setValue(b ? mList.size() : 0);
mAdapter.notifyDataSetChanged();
});
binding.btnConfirm.setOnClickListener(v -> {
Intent intent = new Intent(this, HomeworkFeedbackActivity.class);
intent.putExtra("data", mData);
intent.putExtra("list", mList);
intent.putExtra("student", student);
startActivityForResult(intent, 0xA01);
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 0xA01 && resultCode == RESULT_OK) {
setResult(RESULT_OK);
finish();
}
}
@Override
protected ActivityHomeworkSelectBinding getViewBinding() {
return ActivityHomeworkSelectBinding.inflate(getLayoutInflater());
}
static class Adapter extends BaseQuickAdapter<HomeWork, BaseViewHolder> {
public Adapter() {
super(R.layout.item_homework_detail);
}
public Function1<Integer> selectCall;
@SuppressLint("SetTextI18n")
@Override
protected void convert(@NonNull BaseViewHolder holder, HomeWork homeWork) {
TextView tvNumber = holder.getView(R.id.tvNumber);
ImageView imageView = holder.getView(R.id.ivTopic);
int number = getData().indexOf(homeWork) + 1;
tvNumber.setText("第" + number + "题");
Glide.with(mContext).load(homeWork.url).into(imageView);
if (homeWork.check) {
holder.itemView.setForeground(getDrawable(R.drawable.border_radius_10_red));
} else {
holder.itemView.setForeground(null);
}
CheckBox checkBox = holder.getView(R.id.checkbox);
checkBox.setVisibility(View.VISIBLE);
checkBox.setOnCheckedChangeListener(null);
checkBox.setChecked(homeWork.check);
holder.itemView.setOnClickListener(v -> checkBox.performClick());
checkBox.setOnCheckedChangeListener((v, b) -> {
homeWork.check = b;
if (selectCall != null) {
selectCall.invoke(b ? 1 : -1);
}
if (homeWork.check) {
holder.itemView.setForeground(getDrawable(R.drawable.border_radius_10_red));
} else {
holder.itemView.setForeground(null);
}
});
}
private Drawable getDrawable(@DrawableRes int res) {
return ResourcesCompat.getDrawable(mContext.getResources(), res, null);
}
}
}