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  1. POAndroid app wont run
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    copied!<p>Please help me understand why my app isn't running. I want to check if the swiping works or not, but it won't even start on the emulator. Since I'm very new to androing programming, I cannot find what is wrong as there are not compiler errors.</p> <p>Acitivity code: package enn.ericsson.sitezoeker;</p> <pre><code>import android.app.Activity; import android.os.Bundle; import android.view.GestureDetector; import android.view.GestureDetector.OnGestureListener; import android.view.MotionEvent; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.ViewFlipper; public class MainActivity extends Activity { ViewFlipper viewFlipper = GlobalVars.viewFlipper; Animation slideLeftIn = GlobalVars.slideLeftIn; Animation slideLeftOut = GlobalVars.slideLeftOut; Animation slideRightIn = GlobalVars.slideRightIn; Animation slideRightOut = GlobalVars.slideRightOut; GestureDetector gestureDetector = GlobalVars.gestureDetector; View.OnTouchListener gestureListener = GlobalVars.gestureListener; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); viewFlipper = (ViewFlipper) findViewById(R.id.flipper); slideLeftIn = AnimationUtils.loadAnimation(this, R.anim.slide_left_in); slideLeftOut = AnimationUtils .loadAnimation(this, R.anim.slide_left_out); slideRightIn = AnimationUtils .loadAnimation(this, R.anim.slide_right_in); slideRightOut = AnimationUtils.loadAnimation(this, R.anim.slide_right_out); gestureListener = new View.OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { if (gestureDetector.onTouchEvent(event)) { return true; } return false; } }; gestureDetector = new GestureDetector(this, (OnGestureListener) gestureListener); } @Override public boolean onTouchEvent(MotionEvent event) { if (gestureDetector.onTouchEvent(event)) return true; else return false; } } </code></pre> <p>GlobarVars.java: package enn.ericsson.sitezoeker;</p> <pre><code>import android.app.Application; import android.view.GestureDetector; import android.view.View; import android.view.animation.Animation; import android.widget.ViewFlipper; public class GlobalVars extends Application { private static GlobalVars vars; public static GlobalVars getInstance() { return vars; } @Override public void onCreate() { super.onCreate(); vars = this; } public static GestureDetector gestureDetector; public static View.OnTouchListener gestureListener; public static Animation slideLeftIn; public static Animation slideLeftOut; public static Animation slideRightIn; public static Animation slideRightOut; public static ViewFlipper viewFlipper; } </code></pre> <p>MyGestureDetector class: package enn.ericsson.sitezoeker;</p> <pre><code>import android.view.MotionEvent; import android.view.GestureDetector.SimpleOnGestureListener; import android.view.animation.Animation; import android.widget.ViewFlipper; class MyGestureDetector extends SimpleOnGestureListener { ViewFlipper viewFlipper = GlobalVars.viewFlipper; Animation slideLeftIn = GlobalVars.slideLeftIn; Animation slideLeftOut = GlobalVars.slideLeftOut; Animation slideRightIn = GlobalVars.slideRightIn; Animation slideRightOut = GlobalVars.slideRightOut; private static final int SWIPE_MIN_DISTANCE = 120; private static final int SWIPE_MAX_OFF_PATH = 250; private static final int SWIPE_THRESHOLD_VELOCITY = 200; @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { try { if (Math.abs(e1.getY() - e2.getY()) &gt; SWIPE_MAX_OFF_PATH) return false; // right to left swipe if (e1.getX() - e2.getX() &gt; SWIPE_MIN_DISTANCE &amp;&amp; Math.abs(velocityX) &gt; SWIPE_THRESHOLD_VELOCITY) { viewFlipper.setInAnimation(slideLeftIn); viewFlipper.setOutAnimation(slideLeftOut); viewFlipper.showNext(); } else if (e2.getX() - e1.getX() &gt; SWIPE_MIN_DISTANCE &amp;&amp; Math.abs(velocityX) &gt; SWIPE_THRESHOLD_VELOCITY) { viewFlipper.setInAnimation(slideRightIn); viewFlipper.setOutAnimation(slideRightOut); viewFlipper.showPrevious(); } } catch (Exception e) { // nothing } return false; } } </code></pre> <p>Manifest:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" android:name=".GlobalVars" package="enn.ericsson.sitezoeker" android:installLocation="auto" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="14" android:targetSdkVersion="15" /&gt; &lt;application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;activity android:name=".MainActivity" android:label="@string/title_activity_main" &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="me.user_interface.DisplayMessageActivity"/&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre> <p>Layout: </p> <pre><code> &lt;ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/View1" android:layout_width="match_parent" android:layout_height="match_parent" android:fillViewport="false" &gt; &lt;LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" &gt; &lt;LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" &gt; &lt;TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Provider:" android:textAppearance="?android:attr/textAppearanceLarge" /&gt; &lt;LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" &gt; &lt;RadioButton android:id="@+id/rbKPN" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="KPN" /&gt; &lt;RadioButton android:id="@+id/rbTMobile" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="T-Mobile" /&gt; &lt;RadioButton android:id="@+id/rbVodafone" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Vodafone" /&gt; &lt;/LinearLayout&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" &gt; &lt;TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Site number:" android:textAppearance="?android:attr/textAppearanceLarge" /&gt; &lt;EditText android:id="@+id/txtSitenr" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="10" android:inputType="number" /&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" &gt; &lt;TableRow android:layout_width="match_parent" android:layout_height="10dp" &gt; &lt;/TableRow&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="wrap_content" android:layout_height="80dp" android:orientation="horizontal" &gt; &lt;TextView android:id="@+id/textView3" android:layout_width="72dp" android:layout_height="wrap_content" android:text="Address:" android:textAppearance="?android:attr/textAppearanceMedium" /&gt; &lt;TextView android:id="@+id/lblAddress" android:layout_width="231dp" android:layout_height="71dp" android:background="@drawable/draw" android:inputType="none" android:textAppearance="?android:attr/textAppearanceMedium" android:textColor="#ffffff" /&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" &gt; &lt;TableRow android:layout_width="match_parent" android:layout_height="10dp" &gt; &lt;/TableRow&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" &gt; &lt;TextView android:id="@+id/textView4" android:layout_width="72dp" android:layout_height="wrap_content" android:text="City:" android:textAppearance="?android:attr/textAppearanceMedium" /&gt; &lt;TextView android:id="@+id/lblCity" android:layout_width="231dp" android:layout_height="71dp" android:background="@drawable/draw" android:inputType="none" android:textAppearance="?android:attr/textAppearanceMedium" android:textColor="#ffffff" /&gt; &lt;/LinearLayout&gt; &lt;/LinearLayout&gt; &lt;/ScrollView&gt; &lt;ScrollView android:layout_width="match_parent" android:layout_height="match_parent" android:fillViewport="false" android:id="@+id/View2" &gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" &gt; &lt;LinearLayout android:layout_width="wrap_content" android:layout_height="80dp" android:orientation="horizontal" &gt; &lt;TextView android:id="@+id/textView31" android:layout_width="72dp" android:layout_height="wrap_content" android:text="Site name:" android:textAppearance="?android:attr/textAppearanceMedium" /&gt; &lt;TextView android:id="@+id/lblSiteName" android:layout_width="231dp" android:layout_height="71dp" android:background="@drawable/draw" android:inputType="none" android:textAppearance="?android:attr/textAppearanceMedium" android:textColor="#ffffff" /&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" &gt; &lt;TableRow android:layout_width="match_parent" android:layout_height="10dp" &gt; &lt;/TableRow&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" &gt; &lt;TextView android:id="@+id/textView41" android:layout_width="72dp" android:layout_height="wrap_content" android:text="Site type:" android:textAppearance="?android:attr/textAppearanceMedium" /&gt; &lt;TextView android:id="@+id/lblSiteType" android:layout_width="231dp" android:layout_height="71dp" android:background="@drawable/draw" android:inputType="none" android:textAppearance="?android:attr/textAppearanceMedium" android:textColor="#ffffff" /&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" &gt; &lt;TableRow android:layout_width="match_parent" android:layout_height="10dp" &gt; &lt;/TableRow&gt; &lt;/LinearLayout&gt; &lt;/LinearLayout&gt; &lt;/ScrollView&gt; &lt;/ViewFlipper&gt; </code></pre> <p>rg, Eric</p>
 

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