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POCreating a custom Toast android
 

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    <p>I'm trying to create a custom Toast and display it when user answer a question. It's a True-False game where the user gets a question and have to answer, depending on right or wrong answer I use different toasts. I have the layout, From Android Developers page. But I keep getting error (NullPointerException).</p> <p>here's the XML: </p> <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/toast_layout_root" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="8dp" android:background="#DAAA" &gt; &lt;ImageView android:id="@+id/toastImageV" android:src="@drawable/correcticon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="8dp" /&gt; &lt;TextView android:id="@+id/toastTextV" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#FFF" /&gt; </code></pre> <p></p> <p>And here's the Java code, It is in the onClick method.</p> <pre><code>private void checkAnswer(int ans) { try{ if(ans == q.getAnswer()){ LayoutInflater inf = getLayoutInflater(); View layout = inf.inflate(R.layout.toast_layout, (ViewGroup) findViewById(R.id.toast_layout_root)); ImageView img = (ImageView) findViewById(R.id.toastImageV); TextView text = (TextView) findViewById(R.id.toastTextV); Toast t = new Toast(getApplicationContext()); img.setImageResource(R.drawable.correcticon); text.setText(answerLang[0]); t.setDuration(Toast.LENGTH_SHORT); t.setGravity(Gravity.CENTER, 0, 0); t.setView(layout); t.show(); getNewTF(); } else{ LayoutInflater inf = getLayoutInflater(); View layout = inf.inflate(R.layout.toast_layout, (ViewGroup) findViewById(R.id.toast_layout_root)); ImageView img = (ImageView) findViewById(R.id.toastImageV); TextView text = (TextView) findViewById(R.id.toastTextV); Toast t = new Toast(getApplicationContext()); img.setImageResource(R.drawable.wronganswer); text.setText(answerLang[1]); t.setDuration(Toast.LENGTH_SHORT); t.setGravity(Gravity.CENTER, 0, 0); t.setView(layout); t.show(); getNewTF(); } } catch(Exception e){ e.printStackTrace(); } } </code></pre> <p>The checkAnswer takes an Integer parameter.</p> <p>Here's the logcat:</p> <pre><code>08-28 17:05:33.698: W/System.err(13594): java.lang.NullPointerException 08-28 17:05:33.718: W/System.err(13594): at com.boilingstocks.qdroid.TrueFalse.checkAnswer(TrueFalse.java:363) 08-28 17:05:33.718: W/System.err(13594): at com.boilingstocks.qdroid.TrueFalse.onClick(TrueFalse.java:331) 08-28 17:05:33.718: W/System.err(13594): at android.view.View.performClick(View.java:4147) 08-28 17:05:33.718: W/System.err(13594): at android.view.View$PerformClick.run(View.java:17161) 08-28 17:05:33.718: W/System.err(13594): at android.os.Handler.handleCallback(Handler.java:615) 08-28 17:05:33.718: W/System.err(13594): at android.os.Handler.dispatchMessage(Handler.java:92) 08-28 17:05:33.718: W/System.err(13594): at android.os.Looper.loop(Looper.java:213) 08-28 17:05:33.718: W/System.err(13594): at android.app.ActivityThread.main(ActivityThread.java:4787) 08-28 17:05:33.718: W/System.err(13594): at java.lang.reflect.Method.invokeNative(Native Method) 08-28 17:05:33.718: W/System.err(13594): at java.lang.reflect.Method.invoke(Method.java:511) 08-28 17:05:33.718: W/System.err(13594): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 08-28 17:05:33.728: W/System.err(13594): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556) 08-28 17:05:33.728: W/System.err(13594): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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    3. COinflator root should be NULL, remove [(ViewGroup) findViewById(R.id.toast_layout_root)] from the inflators and replace it with null value
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