android实现一个简单的增删改查的数据库操作.doc
文本预览下载声明
效果图
‘
package com.example.empmanager;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class AddEmpActivity extends Activity {
private EditText empname,empno,empage,empsal;
private Button save,clear;
DBHelper helper=new DBHelper(this);
MainActivity activity=new MainActivity();
empInfo emp;
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.add_emp);
//初始化
empname=(EditText) findViewById(R.id.empname);
empno=(EditText) findViewById(R.id.empno);
empage=(EditText) findViewById(R.id.empage);
empsal=(EditText) findViewById(R.id.empsal);
save=(Button) findViewById(R.id.save);
clear=(Button) findViewById(R.id.clear);
save.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
String name=empname.getText().toString();
String no=empno.getText().toString();
String age=empage.getText().toString();
String sal=empsal.getText().toString();
if(name.length()0no.length()0age.length()0sal.length()0){
helper.insertEmp(name,no,age,sal);
Toast.makeText(AddEmpActivity.this, 增加成功, 1000).show();
Intent intent=new Intent(AddEmpActivity.this,MainActivity.class);
startActivity(intent);
}
else{
Toast.makeText(AddEmpActivity.this, 增加失败, 1000).show();
}
}
});
clear.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
empname.setText();
empno.setText();
empage.setText();
empsal.setText();
}
});
}
}
主活动页面
package com.example.empmanager;
import android.os.Bundle;
import vider.Con
显示全部