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POandroid startActivity Nullpointer exception
 

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  1. POandroid startActivity Nullpointer exception
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    <p>hi the function startActivity throws a nullpointer exception this is my class:</p> <pre><code>public class DetailActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_detail); } public void showHtml(String prod){ Intent myIntent = new Intent(getBaseContext(), DetailActivity.class); startActivity(myIntent); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. //getMenuInflater().inflate(R.menu.activity_main, menu); return false; } } </code></pre> <p>and this is my manifest</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.xxxx" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-permission android:name="android.permission.CAMERA"/&gt; &lt;uses-permission android:name="android.permission.INTERNET" /&gt; &lt;uses-sdk android:minSdkVersion="11" android:targetSdkVersion="16" /&gt; &lt;application android:theme="@android:style/Theme.NoTitleBar" android:allowBackup="false"&gt; &lt;activity android:name="com.example.xxxx.MainActivity" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name="com.example.xxxx.fragments.frag1.BarcodeInsertActivity" /&gt; &lt;activity android:name="com.example.xxxx.fragments.frag2.ShopBasketActivity" /&gt; &lt;activity android:name="com.example.xxxx.fragments.frag3.CheckoutActivity" /&gt; &lt;activity android:name="com.example.xxxx.fragments.frag4.DetailActivity" /&gt; &lt;activity android:name="com.google.zxing.client.android.CaptureActivity" android:configChanges="orientation|keyboardHidden" android:screenOrientation="landscape" android:theme="@android:style/Theme.NoTitleBar.Fullscreen" android:label="ZXing" android:windowSoftInputMode="stateAlwaysHidden" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;/intent-filter&gt; &lt;intent-filter&gt; &lt;action android:name="com.google.zxing.client.android.SCAN" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre> <p>this is how i try to execute the function</p> <pre><code> DetailActivity gg= new DetailActivity(); gg.showHtml( "some html code &lt;div class='someclass'&gt;asdas&lt;/div&gt; and other html tags"); </code></pre> <p>would be nice if some could help me tried a lot of things nothing worked :)</p>
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    1. USFerenc Schenkovski
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    2. VO
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    3. VO
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    1. COAdd your stack trace
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      1. POandroid startActivity Nullpointer exception
      1. USBobTheBuilder
    2. CODon't create object for the Activity DetailActivity gg= new DetailActivity();
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      1. POandroid startActivity Nullpointer exception
      1. USPragnani
    3. COFrom where you are doing this...DetailActivity gg= new DetailActivity();
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      1. POandroid startActivity Nullpointer exception
      1. USVishal Vijay
 

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