安卓app模仿手机淘宝

package com.ui; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import com.Thread.LoginThread; public class loginActivity extends Activity { String usernameString=null; String pwdString=null; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.login); SharedPreferences sharedpreferences=loginActivity.this.getSharedPreferences("test", Activity.MODE_PRIVATE); String username=sharedpreferences.getString("usernameString","");//第二个参数是设定的值的默认值 String pwd=sharedpreferences.getString("pwdString",""); if(!username.equals("")&&!pwd.equals("")){ //跳转第三个界面 Intent intent=new Intent(loginActivity.this,MyShopActivity.class); startActivity(intent); } final EditText nameedit=(EditText) this.findViewById(R.id.name); final EditText pwdedit=(EditText) this.findViewById(R.id.pwd); Button loginbtn=(Button)this.findViewById(R.id.login); loginbtn.setOnClickListener(new OnClickListener() { public void onClick(View v) { usernameString=nameedit.getText().toString(); pwdString=pwdedit.getText().toString(); Toast.makeText(loginActivity.this,"用户名："+ usernameString+"，密码："+pwdString, Toast.LENGTH_SHORT).show(); //类型 String typeString="login"; new Thread(new LoginThread(usernameString, pwdString, typeString, handler)).start(); Intent intent=new Intent(loginActivity.this,homeActivity.class); startActivity(intent); } }); Button button1=(Button)this.findViewById(R.id.register); button1.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub usernameString=nameedit.getText().toString(); pwdString=pwdedit.getText().toString(); Toast.makeText(loginActivity.this,"用户名："+ usernameString+"，密码："+pwdString, Toast.LENGTH_SHORT).show(); //类型 String typeString="register"; new Thread(new LoginThread(usernameString, pwdString, typeString, handler)).start(); Intent intent=new Intent(loginActivity.this,homeActivity.class); startActivity(intent); } }); } private Handler handler=new Handler(){ public void handleMessage(Message msg) { String typeString=msg.getData().getString("type"); if(typeString.equals("login")){ String resuString=msg.getData().getString("result"); if(resuString.equals("success")){ Toast.makeText(loginActivity.this, "登陆成功"+resuString,Toast.LENGTH_SHORT).show(); Toast.makeText(loginActivity.this, usernameString+"\t"+pwdString, Toast.LENGTH_SHORT).show(); //一旦登陆成功就将用户名和密码写入我的保存文件中 //创建一个偏好设定 将数据保存在Mytest文件中并且设置成私有的 只有本屏幕的对象可以访问 SharedPreferences sharedPreferences=loginActivity.this.getSharedPreferences("Mytest", Activity.MODE_PRIVATE); //获得偏好设定的编辑对象 SharedPreferences.Editor editor=sharedPreferences.edit(); //往编辑器中写入数据 用户名和密码 editor.putString("username", usernameString); editor.putString("pwdString", pwdString); //编辑完数据之后提交数据 editor.commit(); Toast.makeText(loginActivity.this,"数据保存成功", Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(loginActivity.this, "登录失败",Toast.LENGTH_SHORT).show(); } }else if(typeString.equals("register")){ String resuString=msg.getData().getString("result"); if(resuString.equals("success")){ Toast.makeText(loginActivity.this, "注册成功"+resuString,Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(loginActivity.this, "注册失败",Toast.LENGTH_SHORT).show(); } } } }; }