Databases
StackOverflow2013
Postsdbo
POProblems increasing text size in my app
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POProblems increasing text size in my app
    primarykey
    data
    text
    <p>I'm trying to increase the size of a particular textview from within the app. I would like to do it via a menu item selection but am having problems. I have tried the following:</p> <pre><code>@Override public boolean onCreateOptionsMenu(Menu menu) { // Create an options menu for the activity super.onCreateOptionsMenu( menu ); incrseTxtMenu = menu.add( 0,4,0,"Increase Text Size" ); incrseTxtMenu.setIcon( R.drawable.ic_menu_plus ); incrseTxtMenu.setOnMenuItemClickListener( new MenuItem.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { // handler.sendMessage( handler.obtainMessage() ); TextView tempTxt = getTextView(); tempTxt.setTextSize( 25 ); return true; } }); return true; } </code></pre> <p>But this is throwing a null pointer exception. I also tried just using intro.setTextSize() but it throws the same error. How can I access the textview from within this menu item? </p> <p>**Update</p> <pre><code>//Method used to fetch the textview public TextView getTextView() { return intro; } </code></pre> <p>And the error from log cat:</p> <pre><code>AndroidRuntime FATAL EXCEPTION: main java.lang.NullPointerException at android.omni.Artist_activity$1.handleMessage( Artist_activity.java:32 ) </code></pre> <p>Also btw - I'm trying to use a handler to update the GUI - am I correct in assuming that this is necessary right?</p> <p>**Update 2 XML CODE</p> <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:id = "@+id/tab_one_top_level" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;LinearLayout android:orientation = "vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;TextView android:id = "@+id/faq_Intro" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "@string/faq_Intro" android:typeface = "monospace" android:textStyle = "bold" android:paddingBottom = "12dp" /&gt; &lt;TextView android:id = "@+id/faq_Intro_Info" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "@string/faq_Intro_Info" android:textSize = "10dp" android:typeface = "monospace" android:textStyle = "bold" /&gt; &lt;/LinearLayout&gt; &lt;/ScrollView&gt; </code></pre> <p>Any thoughts?</p> <p><strong><em>My Code Solution</em></strong></p> <pre><code>@Override public boolean onCreateOptionsMenu(Menu menu) { // Create an options menu for the activity super.onCreateOptionsMenu( menu ); incrseTxtMenu = menu.add( 0,1,0,"Increase Text Size" ); incrseTxtMenu.setIcon( R.drawable.ic_menu_plus ); decrseTxtMenu = menu.add( 0,2,0,"Decrease Text Size" ); decrseTxtMenu.setIcon( R.drawable.ic_menu_negate ); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Increase size menu item if( item.getItemId() == 1 ) { intro.setTextSize( myIntroSize += 5 ); introInfo.setTextSize( myIntroInfoSize += 5 ); } // Derease size menu item else if( item.getItemId() == 2 ) { intro.setTextSize( myIntroSize -= 5 ); introInfo.setTextSize( myIntroInfoSize -= 5 ); } return true; } </code></pre> <p>The onCreate() method simply initialises the textview as before. Oh and the values of myIntroSize and myIntroInfoSize can be whatever you want.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USKatana24
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POProblems increasing text size in my app
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. COwhat is getTextView()? Can you please post the error from the Log Cat?
      singulars
      1. POProblems increasing text size in my app
      1. USArif Nadeem
    2. COwhat is htese lines TextView tempTxt = getTextView(); in your code
      singulars
      1. POProblems increasing text size in my app
      1. USShankar Agarwal
    3. COThat was an experiment which just returns a textview - I have updated my code above
      singulars
      1. POProblems increasing text size in my app
      1. USKatana24
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload