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POAndroid: Trouble with array that's imported from a file and converted from String
 

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  1. POAndroid: Trouble with array that's imported from a file and converted from String
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    <p>I have a text file that I am pulling from my SD card which contains an array in plain text format. Here are the contents of that file ...</p> <pre><code>http://www.oddree.com/rayhaque/android1.jpg,http://www.oddree.com/rayhaque/android2.jpg,http://www.oddree.com/rayhaque/android3.jpg,http://www.oddree.com/rayhaque/android4.jpg,http://www.oddree.com/rayhaque/android5.jpg </code></pre> <p>I am trying to import that text file into a String, convert that String to an array, and then load that array into a list adapter. If I try to split up readString or a trimmed result of readString, I get a forced close every time. If I copy the contents of the file into a String and then use that ... everything works as expected. </p> <p>So what is the difference between loading this stuff from a text file, and loading it from an included string? Is it a byte conversion issue?</p> <p>Here is my code. I have noted what works and what fails.</p> <pre><code>public class MainActivity extends Activity { ListView list; LazyAdapter adapter; List&lt;String&gt; strings = new ArrayList&lt;String&gt;(); String readString = new String(); String arrayNBOW; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); try{ File f = new File(Environment.getExternalStorageDirectory()+"/LazyList/gkindex.txt"); FileInputStream fileIS = new FileInputStream(f); BufferedReader buf = new BufferedReader(new InputStreamReader(fileIS)); while((readString = buf.readLine())!= null){ String arrayNBOW = readString.trim(); Toast.makeText(MainActivity.this, "STARTUPPULL: "+arrayNBOW, Toast.LENGTH_LONG).show(); } } catch (FileNotFoundException e) { Toast.makeText(MainActivity.this, "FAIL: "+e, Toast.LENGTH_LONG).show(); e.printStackTrace(); } catch (IOException e){ Toast.makeText(MainActivity.this, "FAIL: "+e, Toast.LENGTH_LONG).show(); e.printStackTrace(); } setContentView(R.layout.main); list=(ListView)findViewById(R.id.list); String testArray = "http://www.oddree.com/rayhaque/android1.jpg,http://www.oddree.com/rayhaque/android2.jpg,http://www.oddree.com/rayhaque/android3.jpg"; // THIS FAILS // String[] testArraySplit = TextUtils.split(arrayNBOW, ","); // THIS WORKS String[] testArraySplit = TextUtils.split(testArray, ","); adapter=new LazyAdapter(this, testArraySplit); list.setAdapter(adapter); Button b=(Button)findViewById(R.id.button1); b.setOnClickListener(listener); Button c=(Button)findViewById(R.id.button2); c.setOnClickListener(loadtext); } </code></pre> <p>Thank you in advance for any advice or assistance you can offer me! :-)</p> <p><strong>SOLUTION CREATED FROM EMANNUEL'S SUGGESTION:</strong></p> <pre><code>public class MainActivity extends Activity { ListView list; LazyAdapter adapter; List&lt;String&gt; strings = new ArrayList&lt;String&gt;(); String readString = new String(); String arrayNBOW; String[] nardsArray; String nards; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); </code></pre> <p>// New Solution</p> <pre><code> File sdcard = Environment.getExternalStorageDirectory(); File file = new File(sdcard,"/LazyList/gkindex.txt"); StringBuilder text = new StringBuilder(); try { BufferedReader br = new BufferedReader(new FileReader(file)); String line; while ((line = br.readLine()) != null) { text.append(line); text.append('\n'); nards = text.toString(); nardsArray = TextUtils.split(nards, ","); } } catch (IOException e) { Toast.makeText(MainActivity.this, "FAIL: "+e, Toast.LENGTH_LONG).show(); } </code></pre> <p>// End New Solution</p> <pre><code> Toast.makeText(MainActivity.this, "FILE-READ: "+nardsArray, Toast.LENGTH_LONG).show(); setContentView(R.layout.main); list=(ListView)findViewById(R.id.list); adapter=new LazyAdapter(this, nardsArray); list.setAdapter(adapter); Button b=(Button)findViewById(R.id.button1); b.setOnClickListener(listener); Button c=(Button)findViewById(R.id.button2); c.setOnClickListener(loadtext); } </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USRayHaque
    1. USRayHaque
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    1. PL
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      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COHave you tried setting a breakpoint in the debugger, and seeing what the value of arrayNBOW is prior to calling split()?
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      1. POAndroid: Trouble with array that's imported from a file and converted from String
      1. USkcoppock
    2. COYou have to show us your stack trace.
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      1. POAndroid: Trouble with array that's imported from a file and converted from String
      1. USFalmarri
 

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