Databases
StackOverflow2013
Postsdbo
PO"Unable to start activity ComponentInfo{com.example/com.artifex.mupdfdemo.MuPDFActivity}: java.lang.NullPointerException"
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO"Unable to start activity ComponentInfo{com.example/com.artifex.mupdfdemo.MuPDFActivity}: java.lang.NullPointerException"
    primarykey
    data
    text
    <p>I wanted to add MuPDF class into my android project. I do all stuff <a href="http://mupdf.blogspot.com/" rel="nofollow">in the link</a> successfully. And I added all files into my application from <code>/mupdf-source/android/</code>.</p> <p>After I added MuPDFActivity to my Manifest.xml.</p> <pre><code>&lt;activity android:name="com.artifex.mupdfdemo.MuPDFActivity" android:screenOrientation="landscape"&gt; &lt;/activity&gt; </code></pre> <p>To open MuPDFActivity I use this code.</p> <pre><code>Uri uri = Uri.parse("/storage/sdcard0/file.pdf"); Intent intent = new Intent(CarDetail.this,MuPDFActivity.class); intent.setAction(Intent.ACTION_VIEW); intent.setData(uri); startActivity(intent); </code></pre> <p>But when I run the code I get these errors from the LogCat</p> <pre><code>07-08 13:52:03.137: E/AndroidRuntime(16925): FATAL EXCEPTION: main 07-08 13:52:03.137: E/AndroidRuntime(16925): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.artechin.mbtkatalog/com.artifex.mupdfdemo.MuPDFActivity}: java.lang.NullPointerException 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.ActivityThread.access$700(ActivityThread.java:140) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.os.Handler.dispatchMessage(Handler.java:99) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.os.Looper.loop(Looper.java:137) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.ActivityThread.main(ActivityThread.java:4921) 07-08 13:52:03.137: E/AndroidRuntime(16925): at java.lang.reflect.Method.invokeNative(Native Method) 07-08 13:52:03.137: E/AndroidRuntime(16925): at java.lang.reflect.Method.invoke(Method.java:511) 07-08 13:52:03.137: E/AndroidRuntime(16925): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038) 07-08 13:52:03.137: E/AndroidRuntime(16925): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805) 07-08 13:52:03.137: E/AndroidRuntime(16925): at dalvik.system.NativeStart.main(Native Method) 07-08 13:52:03.137: E/AndroidRuntime(16925): Caused by: java.lang.NullPointerException 07-08 13:52:03.137: E/AndroidRuntime(16925): at com.artifex.mupdfdemo.MuPDFActivity.makeButtonsView(MuPDFActivity.java:835) 07-08 13:52:03.137: E/AndroidRuntime(16925): at com.artifex.mupdfdemo.MuPDFActivity.createUI(MuPDFActivity.java:416) 07-08 13:52:03.137: E/AndroidRuntime(16925): at com.artifex.mupdfdemo.MuPDFActivity.onCreate(MuPDFActivity.java:337) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.Activity.performCreate(Activity.java:5188) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094) 07-08 13:52:03.137: E/AndroidRuntime(16925): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074) 07-08 13:52:03.137: E/AndroidRuntime(16925): ... 11 more </code></pre> <p>What can be the problem? How can I solve it?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USErdinç Özdemir
    1. USErdinç Özdemir
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PO"Unable to start activity ComponentInfo{com.example/com.artifex.mupdfdemo.MuPDFActivity}: java.lang.NullPointerException"
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

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