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MainActivity.java
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MainActivity.java
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package com.bottle.stockmanage;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.app.Dialog;
import android.net.ConnectivityManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.StrictMode;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class MainActivity extends Activity
{
private Button btn1;
private Button btn2;
private Button btn3;
private ListView listView;
private SimpleAdapter adapter;
private DBUtil dbUtil;
List<HashMap<String,String>> list=new ArrayList<HashMap<String,String>>();
final Handler myhandler=new Handler()
{
public void handleMessage(Message msg)
{
if(msg.what==0x123)
{
ArrayList<String> drrayList=(ArrayList<String>) msg.obj;
for(int j=0;!drrayList.isEmpty()&&j+2<drrayList.size();j+=3)
{
HashMap<String,String> hashMap=new HashMap<String,String>();
hashMap.put("Cno", drrayList.get(j));
hashMap.put("Cname", drrayList.get(j+1));
hashMap.put("Cnum", drrayList.get(j+2));
list.add(hashMap);
}
adapter=new SimpleAdapter(
MainActivity.this,list,
R.layout.adapter_item,
new String[]{"Cno","Cname","Cnum"},
new int[]{R.id.txt_Cno,R.id.txt_Cname,R.id.txt_Cnum});
listView.setAdapter(adapter);
}
}
};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
btn1 = (Button) findViewById(R.id.btn_all);
btn2 = (Button) findViewById(R.id.btn_add);
btn3 = (Button) findViewById(R.id.btn_delete);
listView = (ListView) findViewById(R.id.listView);
dbUtil = new DBUtil();
ConnectivityManager con=(ConnectivityManager)getSystemService(Activity.CONNECTIVITY_SERVICE);
boolean wifi=con.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnectedOrConnecting();
if(wifi)
{
btn1.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
hideButton(true);
setListView();
}
});
btn2.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
hideButton(true);
setAddDialog();
}
});
btn3.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
hideButton(true);
setDeleteDialog();
}
});
}
else
{
Toast.makeText(getApplicationContext(),
"测试期间请连接和电脑在同一网段的WiFi!", Toast.LENGTH_LONG)
.show();
}
}
private void setDeleteDialog()
{
final Dialog dialog = new Dialog(MainActivity.this);
dialog.setContentView(R.layout.dialog_delete);
dialog.setTitle("输入删除的物品的信息");
Window dialogWindow = dialog.getWindow();
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
dialogWindow.setGravity(Gravity.CENTER);
dialogWindow.setAttributes(lp);
final EditText cNoEditText = (EditText) dialog.findViewById(R.id.editText1);
Button btnConfirm = (Button) dialog.findViewById(R.id.button1);
Button btnCancel = (Button) dialog.findViewById(R.id.button2);
btnConfirm.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
dbUtil.deleteCargoInfo(cNoEditText.getText().toString());
dialog.dismiss();
hideButton(false);
Toast.makeText(MainActivity.this, "成功删除数据", Toast.LENGTH_SHORT).show();
}
});
btnCancel.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
dialog.dismiss();
hideButton(false);
}
});
dialog.show();
}
private void setAddDialog()
{
final Dialog dialog = new Dialog(MainActivity.this);
dialog.setContentView(R.layout.dialog_add);
dialog.setTitle("输入添加的物品的信息");
Window dialogWindow = dialog.getWindow();
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
dialogWindow.setGravity(Gravity.CENTER);
dialogWindow.setAttributes(lp);
final EditText cNameEditText = (EditText) dialog.findViewById(R.id.editText1);
final EditText cNumEditText = (EditText) dialog.findViewById(R.id.editText2);
Button btnConfirm = (Button) dialog.findViewById(R.id.button1);
Button btnCancel = (Button) dialog.findViewById(R.id.button2);
btnConfirm.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
dbUtil.insertCargoInfo(cNameEditText.getText().toString(), cNumEditText.getText().toString());
dialog.dismiss();
hideButton(false);
Toast.makeText(MainActivity.this, "成功添加数据", Toast.LENGTH_SHORT).show();
}
});
btnCancel.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
dialog.dismiss();
hideButton(false);
}
});
dialog.show();
}
private void setListView()
{
listView.setVisibility(View.VISIBLE);
list=dbUtil.getAllInfo(myhandler);
listView.setAdapter(adapter);
}
private void hideButton(boolean result)
{
if (result)
{
btn1.setVisibility(View.GONE);
btn2.setVisibility(View.GONE);
btn3.setVisibility(View.GONE);
}
else
{
btn1.setVisibility(View.VISIBLE);
btn2.setVisibility(View.VISIBLE);
btn3.setVisibility(View.VISIBLE);
}
}
@Override
public void onBackPressed()
{
if (listView.getVisibility() == View.VISIBLE)
{
listView.setVisibility(View.GONE);
hideButton(false);
}
else
{
MainActivity.this.finish();
}
}
}