Android实训所学功能实现代码集合

package com.example.htcone;

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 btn;
private EditText et1;
private EditText et2;
private Button btn1;
private Button btn2;
@Override

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn=(Button)findViewById(R.id.loginin);
btn1=(Button)findViewById(R.id.telephone);
btn2=(Button)findViewById(R.id.message1);
et1=(EditText)findViewById(R.id.wenben1);
et2=(EditText)findViewById(R.id.wenben2);
btn.setOnClickListener(new OnClickListener(){

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
String username=et1.getText().toString();
String password=et2.getText().toString();
if(username.equals("sunrui")&&password.equals("123"))
{
Intent in=new Intent(MainActivity.this,SecondActivity.class);
startActivity(in);
}

}});
btn1.setOnClickListener(new OnClickListener(){

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in2=new Intent();
in2.setAction((Intent.ACTION_CALL));
in2.setData(Uri.parse("tel:13869546209"));
startActivity(in2);

}});
btn2.setOnClickListener(new OnClickListener(){

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in3=new Intent();
in3.setAction(Intent.ACTION_SENDTO);
in3.setData(Uri.parse("smsto:13869546209"));
in3.putExtra("sms_body","have a good time");
startActivity (in3);
}});

}

@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;
}

}

package com.example.htcone;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class SecondActivity extends Activity {

private ListView uselv;

//@Override
List list;
final static int menu_index=Menu.FIRST;
final static int menu_content=Menu.FIRST+1;
final static int menu_last=Menu.FIRST+2;

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
uselv=(ListView)findViewById(R.id.tele);
list=new ArrayList();
list.add("Tom");
list.add("Jerry");
list.add("Ross");
list.add("Monica");
list.add("Racheal");
list.add("Joey");
ArrayAdapter<String>adapter=new ArrayAdapter(this,android.R.layout.simple_list_item_1,list);
uselv.setAdapter(adapter);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
//getMenuInflater().inflate(R.menu.second, menu);
menu.add(0,menu_index,0,"首项").setIcon(android.R.drawable.btn_star);
menu.add(0,menu_content,1,"内容").setIcon(android.R.drawable.btn_star);
menu.add(0,menu_last,2,"尾页").setIcon(android.R.drawable.btn_star);

return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
//return super.onOptionsItemSelected(item);]
switch(item.getItemId()){
case menu_index:
System.out.println("index");
return true;
case menu_content:
System.out.println("content");
return true;
case menu_last:
System.out.println("last");
return true;

}
return false;
}

}

<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: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=".MainActivity" >

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="24dp"
android:text="System Login"
android:textSize="35sp" />

<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_marginTop="69dp"
android:layout_toLeftOf="@+id/editText1"
android:text="Username:" />

<EditText
android:id="@+id/wenben1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/textView2"
android:layout_alignBottom="@+id/textView2"
android:layout_alignParentRight="true"
android:ems="10" >

<requestFocus />
</EditText>

<TextView
android:id="@+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView2"
android:layout_centerVertical="true"
android:text="Password" />

<EditText
android:id="@+id/wenben2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/TextView01"
android:layout_alignParentRight="true"
android:ems="10"
android:inputType="textPassword" />

<Button
android:id="@+id/loginin"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/TextView01"
android:layout_below="@+id/TextView01"
android:text="Button" />

<Button
android:id="@+id/telephone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/loginin"
android:layout_centerHorizontal="true"
android:text="TELEPHONE" />

<Button
android:id="@+id/message1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/telephone"
android:layout_centerHorizontal="true"
android:text="message" />

</RelativeLayout>

<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: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=".SecondActivity" >

<ListView
android:id="@+id/tele"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

</ListView>

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.sr"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />

<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.SEND_SMS"/>"
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.sr.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.sr.SecondActivity"
android:label="@string/title_activity_second" >
</activity>
</application>

</manifest>