实验报告---实验二Activity及UI(b)

计算机与通讯工程学院天津理工大学

计算机与通信工程学院

实验报告

2011 至2012 学年第二学期

实验一Android Activity及UI设计

实验源代码为：LoginActivity:

package edu.tjut.cs.login; import android.app.Activity; import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.*;

public class LoginActivity extends Activity {

/** Called when the activity is first created. */

final int ACTIVITY1 = 1;

private TextView showResult;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(https://www.360docs.net/doc/bf10328956.html,yout.main);

showResult = (TextV iew) findViewById(R.id.showResult);

Button login = (Button) findView ById(R.id.login);

login.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

Intent intent = new Intent();

intent.setClass(LoginActivity.this, usrandpasswd.class);

//intent.setAction("https://www.360docs.net/doc/bf10328956.html,randpasswd");

startActivityForResult(intent, ACTIVITY1);

}

});

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub

super.onActivityResult(requestCode, resultCode, data);

switch(requestCode)

{

case ACTIVITY1:

if(resultCode == RESULT_OK)

showResult.setText(data.getData().toString());

break;

}

}

}

Usrandpasswd:

package edu.tjut.cs.login;

import android.app.Activity;

import android.content.Intent;

import https://www.360docs.net/doc/bf10328956.html,.Uri;

import android.os.Bundle;

import android.view.View;

import android.widget.*;

public class usrandpasswd extends Activity {

private EditText usrname;

private EditText passwd;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(https://www.360docs.net/doc/bf10328956.html,yout.passwd);

usrname = (EditText) findView ById(https://www.360docs.net/doc/bf10328956.html,rnameEditText);

passwd = (EditText) findView ById(R.id.passwdEditText);

Button button = (Button) findView ById(R.id.passwdButton);

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

String msg = "用户名："+usrname.getText().toString()+"\n"+"密码："+passwd.getText();

Intent result = new Intent(null, Uri.parse(msg));

setResult(RESULT_OK, result);

finish();

}

});

}

Login xml：

xmlns:android="https://www.360docs.net/doc/bf10328956.html,/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical">

android:id="@+id/showResult"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"/>

android:id="@+id/login"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="登录"/>

Password xml:

xmlns:android="https://www.360docs.net/doc/bf10328956.html,/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical">

android:id="@+id/usrnameTextView"

android:layout_width="90dip"

android:layout_height="wrap_content"

android:textSize="18dip"

android:text="用户名："/>

android:id="@+id/usrnameEditText"

android:layout_width="120dip"

android:layout_height="wrap_content"

android:layout_toRightOf="@id/usrnameTextView"

android:layout_alignBaseline="@id/usrnameTextView"

android:text=""/>

android:id="@+id/passwdTextView"

android:layout_width="90dip"

android:layout_height="wrap_content"

android:layout_below="@id/usrnameTextView"

android:textSize="18dip"

android:text="密码："/>

android:id="@+id/passwdEditText"

android:layout_width="120dip"

android:layout_height="wrap_content"

android:layout_toRightOf="@id/passwdTextView"

android:layout_alignBaseline="@id/passwdTextView"

android:text=""/>

android:id="@+id/passwdButton"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/passwdEditText"

android:layout_marginTop="15dip"

android:textSize="18dip"

android:text="确认"/>