android excel 操作 Android 操作excel功能实例代码
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学习app对excel的读写控制
1.界面设计
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.npmaster.myexcel.MainActivity">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/childlayout"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffcccccc"
android:layout_margin="1dp">
<!-- line1 -->
<TableRow
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="#ffcccccc"
android:layout_margin="0.5dp">
<TextView
android:layout_width="0.0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="工参数据导入"
android:id="@+id/tvtip" />
<TextView
android:text="默认路径"
android:layout_width="0.0dp"
android:layout_height="wrap_content"
android:layout_weight="2"
android:id="@+id/tvpath" />
</TableRow>
<!---->
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffcc99"
android:layout_margin="0.5dp">
<Button
android:text="导入数据"
android:layout_width="0.0dp"
android:layout_height="match_parent"
android:id="@+id/btImport"
android:textSize="12dp"
android:layout_weight="1"/>
<Button
android:text="清理数据"
android:layout_width="0.0dp"
android:layout_height="match_parent"
android:id="@+id/btClear"
android:textSize="12dp"
android:layout_weight="1"/>
</TableRow>
</TableLayout>
<android.support.v7.widget.RecyclerView
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:divider="#ffff0000"
android:dividerHeight="10dp"
android:id="@+id/rcvEngineerParameters"/>
</LinearLayout>
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffcccccc"
android:layout_margin="0dp">
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffcc99"
android:layout_margin="0.5dp">
<TextView
android:text="Ci"
android:layout_width="0.0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:textSize="12dp"
android:id="@+id/tvCid" />
<TextView
android:text="CellName:"
android:layout_width="0.0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:textSize="12dp"
android:id="@+id/tvCellName" />
<TextView
android:text="Longtitude"
android:layout_width="0.0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:textSize="12dp"
android:id="@+id/tvLongtitude" />
<TextView
android:text="Attitude:"
android:layout_width="0.0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:textSize="12dp"
android:id="@+id/tvAttitude" />
<TextView
android:text="Azimuth:"
android:layout_width="0.0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:textSize="12dp"
android:id="@+id/tvAzimuth" />
</TableRow>
</TableLayout>
</LinearLayout>
2. 代码设计
package com.npmaster.myexcel;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.OrientationHelper;
import android.support.v7.widget.RecyclerView;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import android.util.Log;
import android.widget.Toast;
import jxl.*;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import static android.support.v7.recyclerview.R.styleable.RecyclerView;
public class MainActivity extends AppCompatActivity {
public static final int IMPORT_FILE_SUCCESS = 0;
public static final int IMPORT_FILE_NOT_EXISTS= 1;
public static final int IMPORT_FILE_FAIL = 2;
private static final String LOG_TAG = "NPLOG";
private String npmasterDir = "/npmaster/";
private String filepName = "my.xls";
private String absFullPath = "";
private static final int DEFAULT_SHEET = 0;
public List<EngineerCellInfo> cfgCelllist = null;
public EngineerCellInfo defaultItem;
private EngineerRecycleViewAdapter myRecycleViewAdapter;
private RecyclerView recyclerView;
Toast toast;
Button btClear,btImport;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/* 生成默认的title */
initData();
absFullPath =Environment.getExternalStorageDirectory().toString()+npmasterDir;
createFolder(absFullPath);
createEngineerFile(absFullPath+filepName);
generateTestData();
TextView tv = (TextView) findViewById(R.id.tvpath);
tv.setText(absFullPath+filepName);
recyclerView = (RecyclerView)findViewById(R.id.rcvEngineerParameters);
//线式布局类似 listview
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(OrientationHelper.VERTICAL);
recyclerView.setLayoutManager(layoutManager);
myRecycleViewAdapter = new EngineerRecycleViewAdapter(MainActivity.this,cfgCelllist);
recyclerView.setAdapter(myRecycleViewAdapter);
recyclerView.setItemAnimator(new DefaultItemAnimator());
btClear = (Button)findViewById(R.id.btClear);
btImport = (Button)findViewById(R.id.btImport);
btClear.setOnClickListener(new MyClickListener());
btImport.setOnClickListener(new MyClickListener());
}
class MyClickListener implements View.OnClickListener
{
@Override
public void onClick(View v)
{
switch(v.getId())
{
case R.id.btImport:
int result =readExcel(absFullPath+filepName);
toast = Toast.makeText(MainActivity.this,String.valueOf(result),Toast.LENGTH_SHORT);
toast.show();
myRecycleViewAdapter.notifyDataSetChanged();
break;
case R.id.btClear:
toast = Toast.makeText(MainActivity.this,"clear",Toast.LENGTH_SHORT);
toast.show();
break;
default:
break;
}
}
}
public void initData()
{
cfgCelllist = new ArrayList<EngineerCellInfo>();
defaultItem = new EngineerCellInfo();
defaultItem.item[0] = "Ci";
defaultItem.item[1] = "Cellname";
defaultItem.item[2] = "Longtitude";
defaultItem.item[3] = "Attitude";
defaultItem.item[4] = "Azimuth";
cfgCelllist.add(defaultItem);
}
public void generateTestData()
{
EngineerCellInfo engineerCellInfo = new EngineerCellInfo();
engineerCellInfo.item[0] = "134633";
engineerCellInfo.item[1] = "xx小区";
engineerCellInfo.item[2] = "103.89866";
engineerCellInfo.item[3] = "30";
engineerCellInfo.item[4] = "60";
cfgCelllist.add(engineerCellInfo);
writeToFile(absFullPath+filepName);
}
/* create folder if not exists*/
public void createFolder(String strFolder)
{
File file = new File(strFolder);
if (!file.exists())
{
if (file.mkdir())
{
return;
}
}
}
public void writeToFile(String cfgFileName)
{
File file = null;
if (cfgCelllist.size()<=1)
{
return;
}
try {
file = new File(cfgFileName);
if(file.exists())
{
WritableWorkbook book = Workbook.createWorkbook(file);
WritableSheet sheet = book.getSheet(DEFAULT_SHEET);
for (int i = 1; i <cfgCelllist.size();i++)
{
for (int j=0;j<5;j++)
{
Label labelCi= new Label( j, i, cfgCelllist.get(i).item[j]);
sheet.addCell(labelCi);
}
}
book.write();
book.close();
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
/* 创建工参默认文件，如果文件不存在则创建*/
public void createEngineerFile(String cfgFileName)
{
File file = null;
try {
file = new File(cfgFileName);
if(file.exists()) {
WritableWorkbook book = Workbook.createWorkbook(file);
WritableSheet sheet = book.createSheet("task", DEFAULT_SHEET);
for (int i = 0; i <cfgCelllist.size();i++)
{
for (int j=0;j<5;j++)
{
Label labelCi= new Label( j, i, cfgCelllist.get(i).item[j]);
sheet.addCell(labelCi);
}
}
book.write();
book.close();
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
/* read the cell file from engineer file */
public int readExcel(String cfgFileName)
{
TextView tv = (TextView) findViewById(R.id.tvpath);
try
{
File file = new File(cfgFileName);
if (!file.exists())
{
return IMPORT_FILE_NOT_EXISTS;
}
InputStream inputStream = new FileInputStream(file);
Workbook workbook = Workbook.getWorkbook(inputStream);
Sheet sheet = workbook.getSheet(0);
/* ignore the first row*/
for (int i = 1; i < sheet.getRows();i++)
{
EngineerCellInfo engineerCellInfo = new EngineerCellInfo();
for (int j = 0; j < 5;j++)
{
Cell cell = sheet.getCell(j,i);
engineerCellInfo.item[j] = cell.getContents();
}
cfgCelllist.add(engineerCellInfo);
//tv.setText(engineerCellInfo.toString());
}
workbook.close();
}
catch(Exception e)
{
Log.i(LOG_TAG,"file to find the file");
return IMPORT_FILE_FAIL;
}
return IMPORT_FILE_SUCCESS;
}
public class EngineerCellInfo
{
public String item[]; //use array to store
public EngineerCellInfo()
{
item = new String[5];
}
public String toString()
{
return item[0]+"-"+item[1]+"-"+item[2]+"-"+item[3]+"-"+item[4];
}
}
}
package com.npmaster.myexcel;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.npmaster.myexcel.MainActivity.EngineerCellInfo;
import java.util.List;
public class EngineerRecycleViewAdapter extends RecyclerView.Adapter<EngineerRecycleViewAdapter.MyViewHolder>
{
private List<MainActivity.EngineerCellInfo> itemsData;
private Context mContext;
private LayoutInflater inflater;
public EngineerRecycleViewAdapter(Context context, List<EngineerCellInfo> itemsData)
{
this.itemsData = itemsData;
this.mContext=context;
inflater=LayoutInflater.from(mContext);
}
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
View view = inflater.inflate(R.layout.listitem, parent, false);
MyViewHolder holder = new MyViewHolder(view);
return holder;
}
@Override
public void onBindViewHolder(final MyViewHolder holder, final int position)
{
holder.tvCId.setText(String.valueOf(itemsData.get(position).item[0]));
holder.tvCellName.setText(String.valueOf(itemsData.get(position).item[1]));
holder.tvlongtitude.setText(String.valueOf(itemsData.get(position).item[2]));
holder.tvAttitude.setText(String.valueOf(itemsData.get(position).item[3]));
holder.tvAzimuth.setText(String.valueOf(itemsData.get(position).item[4]));
}
@Override
public int getItemCount()
{
return itemsData.size();
}
public static class MyViewHolder extends RecyclerView.ViewHolder
{
public TextView tvCId;
public TextView tvCellName;
public TextView tvlongtitude;
public TextView tvAttitude;
public TextView tvAzimuth;
public MyViewHolder(View view)
{
super(view);
tvCId = (TextView)view.findViewById(R.id.tvCid);
tvCellName = (TextView)view.findViewById(R.id.tvCellName);
tvlongtitude = (TextView)view.findViewById(R.id.tvLongtitude);
tvAttitude = (TextView) view.findViewById(R.id.tvAttitude);
tvAzimuth = (TextView) view.findViewById(R.id.tvAzimuth);
}
}
}
3. 使用的jxl 开发包 和recyclerview
compile 'com.android.support:appcompat-v7:25.0.1'
compile 'com.android.support:recyclerview-v7:25.0.1'
testCompile 'junit:junit:4.12'
compile files('libs/jxl-2.6.jar')
以上所示是小编给大家介绍的Android 操作excel功能实例代码，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！
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