我正在製作一個android應用程序,一旦按下按鈕並收到包含相同文本的SMS消息,就會從textview中向SD卡寫入文本文件。Android中的SD卡的寫入和文件讀取
一旦收到短信,我如何將文本文件保存到SD卡並從該文本文件中讀取?這是我到目前爲止已經獲得了代碼:
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.telephony.gsm.SmsMessage;
import android.widget.Toast;
import android.media.MediaPlayer;
public class IncomingSmsCaptureApp extends BroadcastReceiver {
MediaPlayer mp1;
@Override
public void onReceive(Context context, Intent intent) {
File sdcard = Environment.getExternalStorageDirectory();
//Get the text file
File file = new File(sdcard,"Notes\file.txt");
//Read text from file
String text = new String();
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
while ((line = br.readLine()) != null) {
}
}
catch (IOException e) {
//You'll need to add proper error handling here
}
//---get the SMS message passed in---
Bundle bundle = intent.getExtras();
SmsMessage[] msgs = null;
String str = "";
String Message = "";
if (bundle != null)
{
//---retrieve the SMS message received---
Object[] pdus = (Object[]) bundle.get("pdus");
msgs = new SmsMessage[pdus.length];
for (int i=0; i<msgs.length; i++){
msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
str += "SMS from " + msgs[i].getOriginatingAddress();
str += " :";
str += msgs[i].getMessageBody().toString();
str += "\n";
Message = msgs[i].getMessageBody().toString();
}
//---display the new SMS message---
Toast.makeText(context, str, Toast.LENGTH_SHORT).show();
if (Message.equals("alarm")) {
//Play alarm sound
mp1 = MediaPlayer.create(context, R.raw.alarm);
mp1.start();
}
else {
if (Message.equals(text)) {
//Perform action
}
}
}
}
}
...你的問題是? – stefan 2012-01-02 14:51:48
爲什麼人們總是拋出一堆代碼,並認爲其他人會通讀它?我的意思是,爲什麼你不能只給我們一些不起作用的相關代碼呢? – ariefbayu 2012-01-02 15:06:51
我需要知道如何將文本文件從文本框中寫入SD卡 – MySoftware 2012-01-02 15:22:15