android初学——登陆界面及跳转设计-詹姆斯最新数据统计-程序博客网

[html] view plaincopy

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:background="@drawable/background"
tools:context=".MainActivity" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_alignParentTop="true"
android:layout_marginTop="29dp"
android:text="@string/hello_world"
android:textColor="#125895"
android:textSize="20sp" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/textView2"
android:layout_marginTop="41dp"
android:text="username"
android:textColor="#124578" />
<TextView
android:id="@+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_marginTop="58dp"
android:text="password"
android:textColor="#124578" />
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/textView1"
android:layout_toRightOf="@+id/textView2" >
<requestFocus />
</EditText>
<EditText
android:id="@+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/TextView01"
android:layout_alignBottom="@+id/TextView01"
android:layout_alignLeft="@+id/editText1"
android:ems="10"
android:inputType="textPassword" />
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/textView2"
android:layout_alignRight="@+id/editText1"
android:layout_marginRight="40dp"
android:src="@drawable/tytuy" />
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/editText2"
android:layout_below="@+id/editText2"
android:layout_marginTop="34dp"
android:text="登陆" />
<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:layout_centerHorizontal="true"
android:layout_marginTop="28dp"
android:text="忘记密码" />
</RelativeLayout>

[html] view plaincopy

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/yu22"
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=".SecActivity" >
<ListView
android:id="@+id/userlv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true" >
</ListView>
</RelativeLayout>

[java] view plaincopy

package com.example.yu2;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
private Button but;//创建一个按钮对象，导入包
private Button btn;
private EditText et1;
private EditText et2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//对but进行实例化
but=(Button)findViewById(R.id.button1);
btn=(Button)findViewById(R.id.button2);
//创建but的单击事件，参数要传匿名内部类
et1=(EditText)findViewById(R.id.editText1);
et2=(EditText)findViewById(R.id.editText2);
but.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
//测试使用System.out.println("hello..........");
//要成功进行跳转到intent这个对象
//第一个参数是原来的类，出发站以.this结尾
//第二个参数是要跳转的类，结束站以class结尾
//Intent in=new Intent(MainActivity.this,SecActivity.class);
//startActivity(in);
String username=et1.getText().toString();
String pwd=et2.getText().toString();
if(username.equals("zhao")&&pwd.equals("118598")){
//密码确认
Intent in=new Intent(MainActivity.this,SecActivity.class);
startActivity(in);}
}
});
btn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in2=new Intent();//创建意图对象
/* 打电话
in2.setAction(Intent.ACTION_CALL);指定意图动作
in2.setData(Uri.parse("tel:5556"));
startActivity(in2);启动意图*/
//发短信
in2.setAction(Intent.ACTION_SENDTO);
in2.setData(Uri.parse("smsto:5556"));
in2.putExtra("sms_body", "password");
startActivity(in2);//=MainActivity.this.startActivity(in2)
}
});
}//onCreat.
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}

[java] view plaincopy

package com.example.yu2;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class SecActivity extends Activity {
//获取ListView对象
private ListView userlv;
//创建对象
List list;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sec);
userlv=(ListView)findViewById(R.id.userlv);
//ListView的实现依赖于适配器，而适配器依赖于数据源
//创建集合数据源
list=new ArrayList();
list.add("zhao");
list.add("qian");
list.add("sun");
list.add("li");
list.add("zhou");
list.add("wu");
//创建适配对象
ArrayAdapter<String>adapter=
new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,list);
//参数1：表示当前适配器的宿主
//参数2：表示当前适配器的数据的呈现形式，用简单列表形式呈现数据
//参数3：表示数据源
userlv.setAdapter(adapter);//导入
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.sec, menu);
return true;
}
}