如何在recyclerview中将edittexts的所有值添加到textview？

时间：2016-03-10 10:17:07

标签： android android-edittext android-recyclerview

  1. 在textview中添加所有edittexts的值。 edittexts在recyclerview中。

  2. 点击减号按钮删除项目。

  3. 点击加号按钮添加项目。

  4. 只有最后一个按钮才会显示加号。所有其他项目将显示减号。

    5. Invoice Screen

1 个答案:

答案 0 :(得分：3)

<强> AdapterMain.java 

package com.demoproject;

import android.support.v7.widget.RecyclerView;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;

import java.util.ArrayList;

/**
 * Created by raghav on 10-03-2016.
 */
public class AdapterMain extends RecyclerView.Adapter<AdapterMain.DataObjectHolder> {
    private static MyClickListener myClickListener;
    private ArrayList<ModelMain> modelMains;

    public AdapterMain(ArrayList<ModelMain> modelMains) {
        this.modelMains = modelMains;
    }

    public void setOnItemClickListener(MyClickListener myClickListener) {
        AdapterMain.myClickListener = myClickListener;
    }

    @Override
    public int getItemCount() {
        return modelMains.size();
    }

    @Override
    public DataObjectHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_main_list, parent, false);

        return new DataObjectHolder(view);
    }

    @Override
    public void onBindViewHolder(DataObjectHolder holder, final int position) {
        holder.listenerService.updatePosition(position);
        holder.listenerPrice.updatePosition(position);

        holder.edService.setText(modelMains.get(position).getService());

        holder.edPrice.setText("" + modelMains.get(position).getPrice());
        if (modelMains.get(position).isBtnPlus()){
            holder.btnAdd.setText("+");
            holder.btnAdd.setBackground(holder.itemView.getContext().getResources().getDrawable(R.drawable.button_design_plus));
        }else {
            holder.btnAdd.setText("-");
            holder.btnAdd.setBackground(holder.itemView.getContext().getResources().getDrawable(R.drawable.button_design_minus));
        }
    }

    public void addItem(ModelMain modelMain, int index) {
        modelMains.add(modelMain);
        if (index !=0 ){
            modelMains.get(index-1).setBtnPlus(false);
        }
        notifyDataSetChanged();
    }

    public void deleteItem(int index) {
        if (modelMains.size() > index){
            modelMains.remove(index);
            notifyDataSetChanged();
            totalPrice();
        }
    }

    public interface MyClickListener {
        void onItemClick(int position, View v);
    }

    private class MyCustomEditTextListener implements TextWatcher {

        private int position;
        private EditText editText;

        public MyCustomEditTextListener(EditText ed) {
            this.editText = ed;
        }
        public void updatePosition(int position) {
            this.position = position;
        }

        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {

        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {

            if (charSequence.length() == 0){
                return;
            }

            if (editText.getId() == R.id.txtPrice){
                if (String.valueOf(modelMains.get(position).getPrice()).equals(charSequence.toString())){
                    return;
                }else {
                    modelMains.get(position).setPrice(Integer.parseInt(charSequence.toString()));
                    totalPrice();
                }
            }else if (editText.getId() == R.id.txtService){
                if (modelMains.get(position).getService().equals(charSequence.toString())){
                    return;
                }else {
                    modelMains.get(position).setService(charSequence.toString());
                }
            }

        }

        @Override
        public void afterTextChanged(Editable editable) {

        }
    }

    private void totalPrice() {
        int price=0;
        for (int j = 0;j<modelMains.size();j++){
            price+=modelMains.get(j).getPrice();
        }

        MainActivity.txtTotalPrice.setText(""+price);
    }

    public class DataObjectHolder extends RecyclerView.ViewHolder
            implements View.OnClickListener {

        EditText edService, edPrice;
        Button btnAdd;
        LinearLayout linBtn;
        MyCustomEditTextListener listenerPrice,listenerService;

        public DataObjectHolder(View itemView) {
            super(itemView);
            edService = (EditText) itemView.findViewById(R.id.txtService);
            edPrice = (EditText) itemView.findViewById(R.id.txtPrice);
            btnAdd = (Button) itemView.findViewById(R.id.btnAdd);
            linBtn = (LinearLayout)itemView.findViewById(R.id.linBtn);
            linBtn.setOnClickListener(this);
            btnAdd.setOnClickListener(this);
            this.listenerPrice = new MyCustomEditTextListener(this.edPrice);
            this.listenerService = new MyCustomEditTextListener(this.edService);
            this.edPrice.addTextChangedListener(listenerPrice);
            this.edService.addTextChangedListener(listenerService);
        }

        @Override
        public void onClick(View v) {
            myClickListener.onItemClick(getLayoutPosition(), v);
        }
    }
}

<强> MainActivity.java 

package com.demoproject;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {


    RecyclerView tableList;
    ArrayList<ModelMain> modelMains;
    private AdapterMain adapterMain;
    private Toolbar toolbar;
    public static TextView txtTotalPrice;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setTitle("Create An Initial Invoice");

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        tableList = (RecyclerView) findViewById(R.id.tableList);
        tableList.setLayoutManager(new LinearLayoutManager(this));

        txtTotalPrice = (TextView)findViewById(R.id.txtTotalPrice);

        findViewById(R.id.btnNext).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this,HomeActivity.class));
            }
        });

        modelMains = new ArrayList<>();

        adapterMain = new AdapterMain(modelMains);

        tableList.setAdapter(adapterMain);

        adapterMain.addItem(new ModelMain("",0,true),modelMains.size());
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                finish();
                return true;
        }

        return super.onOptionsItemSelected(item);
    }

    public boolean onCreateOptionsMenu(Menu menu) {
        return true;
    }

    @Override
    protected void onResume() {
        super.onResume();
        adapterMain.setOnItemClickListener(new AdapterMain.MyClickListener() {
            @Override
            public void onItemClick(int position, View v) {
                if (modelMains.get(position).isBtnPlus()){
                    adapterMain.addItem(new ModelMain("",0,true),modelMains.size());
                }else {
                    adapterMain.deleteItem(position);
                }
            }
        });
    }



}

<强> activity_main.xml中 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@color/background">

    <include
        android:id="@+id/toolbar"
        layout="@layout/tool_bar" />
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/toolbar"
        android:layout_above="@+id/btnNext">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:padding="16dp">
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:gravity="center">
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Estimated Job Time"
                    android:layout_margin="10dp"/>

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="@android:color/white"
                    android:padding="5dp"
                    android:layout_margin="10dp">

                    <Spinner
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:id="@+id/spinner"
                        android:entries="@array/spinnerItems"/>
                </LinearLayout>

            </LinearLayout>
            <android.support.v7.widget.RecyclerView
                android:id="@+id/tableList"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="5dp" />
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:background="@android:color/white"
                android:layout_marginTop="20dp"
                android:padding="10dp"
                android:gravity="right">
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Total"
                    android:textSize="25sp"/>
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:id="@+id/txtTotalPrice"
                    android:text="0"
                    android:textSize="25sp"
                    android:textStyle="bold"
                    android:layout_marginLeft="20sp"/>
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text=" AED"
                    android:textSize="25sp"
                    android:textStyle="bold"/>
            </LinearLayout>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Add Note"
                android:layout_marginTop="20dp"
                android:textSize="18sp"
                android:textStyle="bold"/>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="15sp"
                android:text="Write Few Words About Services To Be Done By You"/>
        </LinearLayout>

    </ScrollView>
    <Button
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:id="@+id/btnNext"
        android:text="Submit To Customer"
        android:layout_alignParentBottom="true"
        android:layout_gravity="bottom"
        android:background="@color/colorPrimary"/>
</RelativeLayout>

<强> row_main_list.xml 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:weightSum="10">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:id="@+id/linPrimary"
        android:weightSum="2"
        android:layout_weight="1"
        android:gravity="center"
        android:layout_marginRight="10dp">
        <EditText
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:padding="10dp"
            android:id="@+id/txtService"
            android:textSize="18sp"
            android:background="@drawable/rectangle_design"
            android:textColor="@android:color/black"
            android:layout_weight="1"/>
        <EditText
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="0"
            android:gravity="center"
            android:inputType="number"
            android:padding="10dp"
            android:id="@+id/txtPrice"
            android:textSize="18sp"
            android:background="@drawable/rectangle_design"
            android:textColor="@android:color/black"
            android:layout_weight="1"/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="9"
        android:gravity="center"
        android:id="@+id/linBtn">
        <Button
            android:layout_width="25dp"
            android:layout_height="25dp"
            android:layout_margin="5dp"
            android:id="@+id/btnAdd"
            android:text="+"
            android:textSize="18sp"
            android:background="@drawable/button_design_plus"/>
    </LinearLayout>
</LinearLayout>

<强> button_design_plus.xml 

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_pressed="false">
        <shape android:shape="oval">
            <solid android:color="@color/colorPrimary"/>
            <corners android:radius="5dp" />
        </shape>
    </item>
</selector>

<强> rectangle_design.xml 

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@android:color/white" />
    <stroke
        android:width="1dp"
        android:color="@android:color/black" />
</shape>
相关问题
最新问题