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POEdittext without value force closes my App
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  1. POEdittext without value force closes my App
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    copied!<p>I am getting a force close when there is Int on my edittext and an OK button is pressed. </p> <p>05-07 16:00:12.945: E/AndroidRuntime(28366): java.lang.NumberFormatException: unable to parse '' as integer</p> <p>Thats the logcat error I am getting. </p> <p>Here is the code: </p> <pre><code>//Button OK Button bOK = (Button) findViewById(R.id.bOK); bOK.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub Toast invalid = Toast.makeText(getApplicationContext(), "Only values between 0-255 will be accepted.", Toast.LENGTH_LONG); uin = Integer.parseInt(value.getText().toString()); if ( uin &lt;= 255 ) { Process process = null; try { process = Runtime.getRuntime().exec("su"); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } DataOutputStream os = new DataOutputStream(process.getOutputStream()); try { os.writeBytes("chmod 644 sys/class/leds/button-backlight/brightness\n"); os.writeBytes("echo " +uin+ " &gt; sys/class/leds/button-backlight/brightness\n"); os.writeBytes("chmod 444 sys/class/leds/button-backlight/brightness\n"); os.writeBytes("exit\n"); os.flush(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } else if ( uin &gt; 255 ) { invalid.show(); } } }); </code></pre> <p>How can i tell the app if there is no value input on the <code>EditText</code> ( uin missing ) show toast, and not force close? :D</p> <p>Please be gentle on me, this is my second week with java and android, I have never had any programming language experiences before :)</p>
 

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