First Android Test Project not starting

Question

I am creating my first Android application, but it does not start at all.

In my src> android.SampleApp, I created a java file called Main.java with:

public class Main extends Activity { // Will be connected with the buttons via XML public void myClickHandler(View view) { switch (view.getId()) { case R.id.btn1: ((EditText) findViewById(R.id.txtContent)).setText("Button 1 Clicked"); break; case R.id.btn2: ((EditText) findViewById(R.id.txtContent)).setText("Button 2 Clicked"); break; } } } 

In my res> layout> main.xml:

 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" android:id="@+id/txtContent"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button One" android:id="@+id/btn1"></Button> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button Two" android:id="@+id/btn2"></Button> 

My AndroidManifest.xml content is:

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="android.SampleApp" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> </application> <uses-sdk android:minSdkVersion="7" /> 

I get this error:

• [2010-02-02 01:46:26 - SampleApp] Android Launch!
• [2010-02-02 01:46:26 - SampleApp] adb is working fine.
• [2010-02-02 01:46:26 - SampleApp] No Launcher activity found!
• [2010-02-02 01:46:26 - SampleApp] Launch will only synchronize the application package on the device!
• [2010-02-02 01:46:26 - SampleApp] Performing synchronization

Lines 3 and 4 are highlighted in red.

Can someone lead me in the right direction to just show the application on an emulator?

Android 2.1 SDK with Eclipse

Answer 1

There is no <activity> tag in your manifest file:

  <intent-filter . . . > <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> 

See here for more details.