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POUnable to start activity - ComponentInfo error
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  1. POUnable to start activity - ComponentInfo error
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    copied!<p>This are the errors I get when I try to start my app. Can somebody see what I'm doing wrong?</p> <p><strong>The LogCat</strong></p> <pre><code>11-19 14:01:39.993: E/AndroidRuntime(4046): FATAL EXCEPTION: main 11-19 14:01:39.993: E/AndroidRuntime(4046): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.zimzux.soundapprhk/com.zimzux.soundapprhk.Start}: java.lang.NullPointerException 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.ActivityThread.access$600(ActivityThread.java:123) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.os.Handler.dispatchMessage(Handler.java:99) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.os.Looper.loop(Looper.java:137) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.ActivityThread.main(ActivityThread.java:4424) 11-19 14:01:39.993: E/AndroidRuntime(4046): at java.lang.reflect.Method.invokeNative(Native Method) 11-19 14:01:39.993: E/AndroidRuntime(4046): at java.lang.reflect.Method.invoke(Method.java:511) 11-19 14:01:39.993: E/AndroidRuntime(4046): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 11-19 14:01:39.993: E/AndroidRuntime(4046): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 11-19 14:01:39.993: E/AndroidRuntime(4046): at dalvik.system.NativeStart.main(Native Method) 11-19 14:01:39.993: E/AndroidRuntime(4046): Caused by: java.lang.NullPointerException 11-19 14:01:39.993: E/AndroidRuntime(4046): at com.zimzux.soundapprhk.Start.onCreate(Start.java:269) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.Activity.performCreate(Activity.java:4492) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 11-19 14:01:39.993: E/AndroidRuntime(4046): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920) 11-19 14:01:39.993: E/AndroidRuntime(4046): ... 11 more 11-19 14:01:40.213: I/dalvikvm(4046): threadid=3: reacting to signal 3 11-19 14:01:40.213: I/dalvikvm(4046): Wrote stack traces to '/data/anr/traces.txt' 11-19 14:01:40.503: I/dalvikvm(4046): threadid=3: reacting to signal 3 11-19 14:01:40.513: I/dalvikvm(4046): Wrote stack traces to '/data/anr/traces.txt' 11-19 14:02:38.883: I/Process(4046): Sending signal. PID: 4046 SIG: 9 </code></pre> <p><strong>Here is my Manifest</strong></p> <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.zimzux.soundapprhk" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="11" android:targetSdkVersion="18" /&gt; &lt;application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@android:style/Theme.NoTitleBar" &gt; &lt;activity android:name=".Opstart" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="com.zimzux.soundapprhk.OPSTART" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name=".Start" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="com.zimzux.soundapprhk.MAIN" /&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><strong>Here is my XML</strong></p> <p>I'm using mostly include, it's easier for me to have an overview.</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:tools="http://schemas.android.com/tools" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#00A2E8" android:gravity="center_vertical" android:orientation="vertical" android:scrollbars="vertical|horizontal" tools:context=".MainActivity" tools:ignore="SpUsage" &gt; &lt;LinearLayout android:id="@+id/top" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="20" android:layout_gravity="top" android:background="#00A2E8" android:gravity="center_horizontal" android:layout_marginLeft="100dp" android:orientation="vertical" &gt; &lt;include android:id="@+id/topbanner" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/topbanner_xml" /&gt; &lt;include android:id="@+id/topbannerindstil" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/topbanner_indstil_xml" /&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:id="@+id/main" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="100" android:layout_gravity="center" android:gravity="center" android:layout_marginTop="5dp" android:orientation="horizontal" &gt; &lt;include android:id="@+id/start" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/mainstart_xml" /&gt; &lt;include android:id="@+id/afspilmain" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/afspil_main_xml" /&gt; &lt;include android:id="@+id/spilstopmain" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/afspil_spilstop_xml" /&gt; &lt;include android:id="@+id/indstil" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/indstil_xml" /&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:id="@+id/bund" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="25" android:layout_gravity="center_horizontal" android:layout_marginBottom="5dp" android:layout_marginTop="10dp" android:gravity="center" android:orientation="horizontal" &gt; &lt;include android:id="@+id/bundbanner" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/bundbanner_xml" /&gt; &lt;include android:id="@+id/bundbannerindstil" android:layout_width="match_parent" android:layout_height="match_parent" layout="@layout/bundbanner_indstil_xml" /&gt; &lt;/LinearLayout&gt; &lt;/LinearLayout&gt; </code></pre> <p><strong>Here is my Java</strong></p> <p>There is a lot of findViewById's for all the others XML.</p> <pre><code>package com.zimzux.soundapprhk; import android.app.Activity; import android.media.MediaPlayer; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; public class Start extends Activity { MediaPlayer mp1; MediaPlayer mp2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.start_xml); final LinearLayout top = (LinearLayout) findViewById(R.id.top); final LinearLayout bund = (LinearLayout) findViewById(R.id.bund); final LinearLayout topbannerafspil = (LinearLayout) findViewById(R.id.topbanner); final LinearLayout bundbannerafspil = (LinearLayout) findViewById(R.id.bundbanner); final LinearLayout start = (LinearLayout) findViewById(R.id.start); final LinearLayout afspil = (LinearLayout) findViewById(R.id.afspilmain); final LinearLayout spilstop = (LinearLayout) findViewById(R.id.spilstopmain); final LinearLayout indstil = (LinearLayout) findViewById(R.id.indstil); final LinearLayout topbannerindstil = (LinearLayout) findViewById(R.id.topbannerindstil); final LinearLayout bundbannerindstil = (LinearLayout) findViewById(R.id.bundbannerindstil); ImageView btnstart = (ImageView) findViewById(R.id.btnstart); ImageView btnindstil = (ImageView) findViewById(R.id.btnindstil); @SuppressWarnings("unused") TextView textnowpl = (TextView) findViewById(R.id.textnowpl); Button btnscor = (Button) findViewById(R.id.btnscor); Button btntimeout = (Button) findViewById(R.id.btntimeout); Button btnudvisning = (Button) findViewById(R.id.btnudvisning); Button btnstraffe = (Button) findViewById(R.id.btnstraffe); Button btnindlob = (Button) findViewById(R.id.btnindlob); Button btnopvarmning = (Button) findViewById(R.id.btnopvarmning); Button btnhalvleg = (Button) findViewById(R.id.btnhalvleg); Button btnnextsong = (Button) findViewById(R.id.btnnextsong); Button btnspilstop = (Button) findViewById(R.id.btnspilstop); Button btnbasic = (Button) findViewById(R.id.btnbasic); Button btnspilswitchstop = (Button) findViewById(R.id.btnspilswitchstop); Button btnfadeud = (Button) findViewById(R.id.btnfadeud); Button btnstop = (Button) findViewById(R.id.btnstop); Button spilstop1 = (Button) findViewById(R.id.spilstop1); Button spilstop2 = (Button) findViewById(R.id.spilstop2); Button spilstop3 = (Button) findViewById(R.id.spilstop3); Button spilstop4 = (Button) findViewById(R.id.spilstop4); Button spilstop5 = (Button) findViewById(R.id.spilstop5); Button spilstop6 = (Button) findViewById(R.id.spilstop6); Button spilstop7 = (Button) findViewById(R.id.spilstop7); Button spilstop8 = (Button) findViewById(R.id.spilstop8); Button spilstop9 = (Button) findViewById(R.id.spilstop9); Button spilstop10 = (Button) findViewById(R.id.spilstop10); Button spilstop11 = (Button) findViewById(R.id.spilstop11); Button spilstop12 = (Button) findViewById(R.id.spilstop12); Button spilstop13 = (Button) findViewById(R.id.spilstop13); Button spilstop14 = (Button) findViewById(R.id.spilstop14); Button spilstop15 = (Button) findViewById(R.id.spilstop15); Button spilstop16 = (Button) findViewById(R.id.spilstop16); top.setVisibility(View.GONE); topbannerafspil.setVisibility(View.GONE); topbannerindstil.setVisibility(View.GONE); bund.setVisibility(View.GONE); bundbannerafspil.setVisibility(View.GONE); bundbannerindstil.setVisibility(View.GONE); start.setVisibility(View.VISIBLE); afspil.setVisibility(View.GONE); spilstop.setVisibility(View.GONE); indstil.setVisibility(View.GONE); btnstart.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v){ topbannerafspil.setVisibility(View.VISIBLE); bundbannerafspil.setVisibility(View.VISIBLE); start.setVisibility(View.GONE); afspil.setVisibility(View.VISIBLE); spilstop.setVisibility(View.GONE); indstil.setVisibility(View.GONE); topbannerindstil.setVisibility(View.GONE); bundbannerindstil.setVisibility(View.GONE); top.setVisibility(View.VISIBLE); bund.setVisibility(View.VISIBLE); }}); btnindstil.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v){ topbannerafspil.setVisibility(View.GONE); bundbannerafspil.setVisibility(View.GONE); start.setVisibility(View.GONE); afspil.setVisibility(View.GONE); spilstop.setVisibility(View.GONE); indstil.setVisibility(View.VISIBLE); topbannerindstil.setVisibility(View.VISIBLE); bundbannerindstil.setVisibility(View.VISIBLE); top.setVisibility(View.VISIBLE); bund.setVisibility(View.VISIBLE); }}); btnbasic.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v){ afspil.setVisibility(View.VISIBLE); spilstop.setVisibility(View.GONE); }}); btnspilswitchstop.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v){ afspil.setVisibility(View.GONE); spilstop.setVisibility(View.VISIBLE); }}); }} </code></pre>
 

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