Android应用程序开发之五-手机功能

Android应用程序开发功能拨打根本步骤 1.创立Intent,设置Action为Intent.ACTION_CALL 2.设置数据为:Uri.parse(tel://+phoneNumber) 3.以Intent为参数,startActivity权限publicclassDialerActionextendsActivity{@OverridepublicvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);Buttonbutton=(Button)findViewById(R.id.button);button.setOnClickListener(newView.OnClickListener(){ publicvoidonClick(Viewv){ EditTexteditText=(EditText)findViewById(R.id.mobile);

Intentintent=newIntent(Intent.ACTION_CALL,Uri.parse("tel:"+editText.getText())); DialerAction.this.startActivity(intent); }});}}在模拟器上运行测试步骤:1>在Eclipse中运行此应用2>在Dos窗口中进入androidSDK安装路径的tools目录,输入以下命令再开启一个Android模拟器:emulator-dataotd.img注：otd.img为用户数据存取文件，如果该文件不存在，默认在tools目录创立该文件

监视状态根本步骤1.继承android.telephony.PhoneStateListener,覆盖onCallStateChanged()方法,实现监听器2.获得id为”TELEPHONY_SERVIC”的系统效劳,类型为3.调用TelePhonyManager的listen方法,参数为listener和LISTEN_CALL_STATE(来自PhoneStateListener接口)权限

publicvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);setContentView(R.layout.main);MyPhoneStateListenermyPhoneStateListene=new MyPhoneStateListener();TelephonyManagertelManager= (TelephonyManager) getSystemService(TELEPHONY_SERVICE);telManager.listen(myPhoneStateListene, MyPhoneStateListener.LISTEN_CALL_STATE);

}publicclassMyPhoneStateListenerextendsPhoneStateListener{publicvoidonCallStateChanged(intstate,StringincomingNumber){switch(state){caseTelephonyManager.CALL_STATE_IDLE://待机状态caseTelephonyManager.CALL_STATE_OFFHOOK://通话中caseTelephonyManager.CALL_STATE_RINGING://来电状态} super.onCallStateChanged(state,incomingNumber);}}发送短信根本步骤利用PhoneNumberUtils.isGlobalPhoneNumber判断一个字符串是不是合法的号码包装一个PendingIntent,当短信发送后会播送出去,这样可以得到短信发送结果调用SmsManager.getDefault(),获得SmsManager对象调用SmsManager的sendTextMessage方法,参数:号码,短信内容,PendingIntent权限//代码片段1：注册SendInfoRecevierSendInfoReceiversendInfoReceiver=newSendInfoReceiver();IntentFilterfilter=newIntentFilter("SMS_SEND_ACTION");registerReceiver(sendInfoReceiver,filter);//代码片段2：发送短信if(PhoneNumberUtils.isGlobalPhoneNumber(phoneNumber)){Intentintent=newIntent("SMS_SEND_ACTION");PendingIntentpi=PendingIntent.getBroadcast(SMSActivity.this,0,intent,0);SmsManagersm=SmsManager.getDefault();sm.sendTextMessage(phoneNumber,null,sms,pi,null);}publicclassSendInfoReceiverextendsBroadcastReceiver{

publicvoidonReceive(Contextctx,Intentintent){

intcode=this.getResultCode();

if(code==Activity.RESULT_OK){ Toast.makeText(SMSActivity.this,"短信发送成功", 3000).show();

}

elseif(code== SmsManager.RESULT_ERROR_GENERIC_FAILURE){ Toast.makeText(SMSActivity.this,"短信发送失败", 3000).show();

}

else{ Toast.makeText(SMSActivity.this,"未知",3000).show();

}

}}接收短信根本步骤定义一个BroadcastReceiver,在配置文件中注册,action为vider.telephony.SMS_RECEIVED在BroadcastReceiver中,调用intent.getExtras().get(“pdus”)获得一个Object[]将每个Object强转为byte[],调用SmsMessage.createFromPdu,获得SmsMessage对象对SmsMessage对象调用getOriginatingAddress获得号,getMessageBody获得短信内容权限publicclassSmsReceiverextendsBroadcastReceiver{publicvoidonReceive(Contextctx,Intentintent){Bundlebundle=intent.getExtras();if(bundle!=null){ Object[]myObject=(Object[])bundle.get("pdus"); SmsMessage[]messages=new SmsMessage[myObject.length]; for(inti=0;i<myObject.length;i++){ messages[i]= SmsMessage.createFromPdu((byte[])myObject[i]); } Stringaddress="",content=""; for(inti=0;i<messages.length;i++){ address+=messages[i].getOriginatingAddress(); content+=messages[i].getMessageBody(); }Intentintent2=newIntent(ctx,ShowSmsActivity.class);intent2.putExtra("address",address);intent2.putExtra("content",content);PendingIntentpi=PendingIntent.getActivity(ctx,0,intent2,0);Notificationnft=newNotification();nft.defaults=Notification.DEFAULT_ALL;nft.icon=R.drawable.text;nft.setLatestEventInfo(ctx,"短信","收到新的短信",pi);NotificationManagernm=(NotificationManager)ctx.getSystemService(Context.NOTIFICATION_SERVICE);nm.notify(0,nft);}}电池电量系统发出的播送:ACTION_BATTERY_CHANGEDACTION_BATTERY_LOWACTION_BATTERY_OKEY注册BroadcastReceiver,响应以上的播送在Receiver中,获得电量的方法:intcurrent=intent.getExtras().getInt("level");inttotal=intent.getExtras().getInt("scale");publicvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);setContentView(R.layout.main);receiver=newBatteryReceiver();IntentFilterfilter=newIntentFilter();filter.addAction(Intent.ACTION_BATTERY_CHANGED);

this.registerReceiver(receiver,filter);}classBatteryReceiverextendsBroadcastReceiver{publicvoidonReceive(Contextcontext,Intentintent){ intcurrent=intent.getExtras().getInt("level"); inttotal=intent.getExtras().getInt("scale"); intpercent=current*100/total; EditTextet=(EditText)findViewById(R.id.et); et.setText("总电量:"+total+"目前电量:"+current+"百分比:"+percent+"%");}

闹钟管理根本步骤获得”ALARM_SERVICE”系统效劳,得到对象对其调用set(AlarmManager.RTC_WAKEUP,longtime,PendingIntentpi)时间到时,会把pi播送出去,由事先定义的BroadcastReceiver接收publicclassAlarmSetActivityextendsActivity{Calendarc=Calendar.getInstance();finalintDIALOG_TIME=0;//设置对话框idAlarmManageram;//声明AlarmManager对象publicvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);setContentView(R.layout.main);//设置当前屏幕am=(AlarmManager)getSystemService(Context.ALARM_SERVICEButtonbtn=(Button)findViewById(R.id.btn);//获得Button对象btn.setOnClickListener(newView.OnClickListener() publicvoidonClick(Viewv){//重写onClick方法 showDialog(DIALOG_TIME);//显示时间选择对话框 }});

}protectedDialogonCreateDialog(intid){//重写onCreateDialog方法Dialogdialog=null;switch(id){//对id进行判断caseDIALOG_TIME:dialog=newTimePickerDialog(//创立TimePickerDialog对象this,newTimePickerDialog.OnTimeSetListener(){//创立OnTimeSetListener监听器 publicvoidonTimeSet(TimePickertp,inthourOfDay,intminute){Calendarc=Calendar.getInstance();//获取日期对象c.setTimeInMillis(System.currentTimeMillis());//设置Calendar对象c.set(Calendar.HOUR,hourOf