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POWriting and a file reading from the SD Card in Android
 

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  1. POWriting and a file reading from the SD Card in Android
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    <p>I am making an android application that will write a text file to the SD Card from a textview once a button is pressed and once an SMS message is received containing the same text. </p> <p>How do I save a text file to the SD-Card and read from that text file once an SMS is received? This is the code that I've got so far:</p> <pre><code>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&lt;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 } } } } } </code></pre>
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    1. CO...and your question is?
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    2. COwhy is people always throws a bunch of codes and think other will just read through it? I mean, why can't you just give us the relevant piece of code that not work?
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    3. COI need to know HOW TO WRITE A TEXT FILE TO THE SD-CARD FROM A TEXTBOX
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