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POSeparate listeners on TextView and ImageButton in a ListView
 

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  1. POSeparate listeners on TextView and ImageButton in a ListView
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    <p>I wish to create a ListView, where each item in the list should contain a textview and an imageview next to it. Clicking on the textView should take me to another activity and clicking on the imageview/imagebutton should play an audio file. </p> <p>This is the relevant portion of the code written by me so far:</p> <pre><code>public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mDbHelper = new DbAdapter(this); mDbHelper.open(); temp=mDbHelper.fetchAllNotes(); startManagingCursor(temp); String[] from=new String[]{DbAdapter.KEY_TITLE}; int[] to= new int[]{R.id.tvList}; words = new SimpleCursorAdapter(Main.this, R.layout.emptylist, temp, from, to); Main.this.setListAdapter(words); ImageView ivSpeak=(ImageView) findViewById(R.id.ivSpeak); ivSpeak.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(Main.this, "Hi", Toast.LENGTH_SHORT).show(); } });} protected void onListItemClick(ListView l, View v, int position, long id) { super.onListItemClick(l, v, position, id); Intent i=new Intent(Main.this,WordDetail.class); i.putExtra(DbAdapter.KEY_ROWID, id); startActivity(i); } </code></pre> <p>The main.xml (layout for the entire activity) file is:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/changedback"&gt; &lt;ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="0dp" android:layout_weight="1" android:textFilterEnabled="true" android:background="@android:color/transparent" android:cacheColorHint="#00000000"&gt; &lt;/ListView&gt; &lt;/LinearLayout&gt; </code></pre> <p>The emptylist.xml (the layout for the individual items in the listview) file is:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:background="@android:color/transparent"&gt; &lt;TextView android:id="@+id/tvList" android:layout_width="wrap_content" android:layout_height="wrap_content" android:singleLine="true" android:ellipsize="marquee" android:layout_alignParentLeft="true" android:textAppearance="?android:attr/textAppearanceLarge" android:layout_centerVertical="true" android:background="@android:color/transparent"/&gt; &lt;ImageView android:id="@+id/ivSpeak" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/ic_launcher" android:layout_alignParentRight="true" android:focusable="false" android:background="@android:color/transparent"/&gt; &lt;/RelativeLayout&gt; </code></pre> <p>The ivSpeak.setOnClickListener(new OnClickListener() is giving me a null pointer exception. Kindly help. I am quite new to Android</p>
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