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POFileoutputStream / bufferreader
 

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  1. POFileoutputStream / bufferreader
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    <p>I have an equation which result is displayed in a TextView. Then i have another TextView which act like a History. This History i want to save with a file and the file should be reloaded after the app will be killed an restarted.</p> <p>Whats i dont understand is that the second TextView which is the View that i will save is displayed wierd stuff after starting the app</p> <p>Thise line over and over again.</p> <pre><code>android.widget.TextView{41852c0 VFED.VCL ..... ID32,316-419,351 #7f09000a app:id/tvHistory} </code></pre> <p>My own Code:</p> <pre><code>final static String FILENAME = "marks.txt"; mNotenHistory=(TextView)findViewById(R.id.tVhistory); mNotenHistory.setMovementMethod(new ScrollingMovementMethod()); private void loadTextfromFile() { File f = new File(getFilesDir(),FILENAME); try { BufferedReader br = new BufferedReader(new FileReader(f)); String line; try { while ((line = br.readLine()) != null) { mNotenHistory.setText(line+"\n"+mNotenHistory.getText()); } br.close(); } catch (IOException e) { e.printStackTrace(); } } catch (FileNotFoundException e) { e.printStackTrace(); } } @Override public void onClick(View view) { [...] mNotenHistory.setText(mNotenHistory.getText() + "\n" + string_note); String noten_history_string = String.valueOf(mNotenHistory); try { FileOutputStream fo = openFileOutput(FILENAME, Context.MODE_APPEND); fo.write(noten_history_string.getBytes()); fo.write("\n".getBytes()); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } </code></pre>
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    1. USLucas
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      1. POFileoutputStream / bufferreader
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    1. CODont forget to close all streams after you use them , sometime they create memory leaks and make some garble output.
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      1. USkaushal trivedi
 

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