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POLinking TextViews
 

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  1. POLinking TextViews
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    <p>While trying to manipulate a TextView box, I kept recieving null pointer errors. I have discovered that my TextView box is not linked to my code despite the fact that I have set it to the correct ID. I do not know what the problem is though. I link all my TextViews the same way and this is first time that I have had this problem. This is the part of my XML file that defines the TextView's properties.</p> <pre><code>&lt;TextView android:id="@+id/textviewH" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/imageView1" android:layout_alignTop="@+id/textView5" android:layout_marginLeft="64dp" android:text="@string/HumiumLink" /&gt; </code></pre> <p>This is my java file</p> <pre><code> AlertDialog.Builder dialog = new AlertDialog.Builder(this); View view = LayoutInflater.from(getApplicationContext()).inflate(R.layout.activity_about_t2m, null); Tv = ((TextView) findViewById(R.id.textviewH)); if (Tv != null) { Tv.setMovementMethod(LinkMovementMethod.getInstance()); } dialog.setView(view); dialog.setTitle("About T2M"); dialog.setIcon(R.drawable.ic_launcher); dialog.setCancelable(false); dialog.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } } ); dialog.create(); dialog.show(); </code></pre> <p>I have found that the code inside the if-statement never executes which means that Tv is null. Logcat even shows a strange error that I have not seen before. ![LogCat Error Messages][1] I circled it in blue. This is frustrating.</p> <p><strong>EDIT1:</strong></p> <p>This is all for a part of the menu called AboutT2M that is executed from the main activity. The following is the menu code from my main activity</p> <pre><code>public boolean onOptionsItemSelected(MenuItem item) { // Handle presses on the action bar items switch (item.getItemId()) { case R.id.AboutMorseID: Intent AboutMorseI = new Intent(this, About_Morse.class); startActivity(AboutMorseI); break; case R.id.SettingsID: Intent SettingsI = new Intent(this, SettingsActivity.class); startActivity(SettingsI); break; case R.id.ReadMeID: Intent ReadMeI = new Intent(this, ReadMe.class); startActivity(ReadMeI); break; case R.id.AboutT2MID: Intent AboutT2MI = new Intent(this, About_T2M.class); startActivity(AboutT2MI); break; default: } return true; } </code></pre> <p>[1]: <a href="http://i.stack.imgur.com/vRH7Q.png" rel="nofollow">http://i.stack.imgur.com/vRH7Q.png</a><em>emphasized text</em></p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USjizco Borneo
    1. USjizco Borneo
    plurals
    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
    2. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COare you applying onClick effect on the textview? can we have a look at the code on how you are starting an activity? are you doing context.startActivity(Intent)?
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      1. POLinking TextViews
      1. USChor Wai Chun
    2. COI want to put a clickable hyperlink into the textview
      singulars
      1. POLinking TextViews
      1. USjizco Borneo
 

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