在Android手机上的哪里可以找到apk文件？

Question

I am trying to develop android applications with eclipse (following this tutorial ). Clicking the 'Run' button inside eclipse (running on Linux) and choosing an android device, eclipse tells me that the application is successfully installed on the device.

[2014-07-02 19:26:55 - MyFirstApp] Installing MyFirstApp.apk...
[2014-07-02 19:27:01 - MyFirstApp] Success!
[2014-07-02 19:27:02 - MyFirstApp] /MyFirstApp/bin/MyFirstApp.apk installed on device
[2014-07-02 19:27:02 - MyFirstApp] Done!

However, I cannot find this application in the list of installed applications on the phone. It only shows up in Settings -> Applications where I am only able to remove it, but not to start it. Maybe I need to do something special in order to let the app show up normally and useable?

As a next step, I installed an 'AppInstaller' to install the apk file. But I do now know which folder on the android phone the apk has been copied to. Where did eclipse put the apk in?

This is in the manifest:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myfirstapp"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
    </application>

</manifest>

Answer 1

The most likely cause is that you didn't specify a launcher activity in the Manifest.

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

From the documentation :

• The ACTION_MAIN action indicates this is the main entry point and does not expect any intent data.
• The CATEGORY_LAUNCHER category indicates that this activity's icon should be placed in the system's app launcher. If the element does not specify an icon with icon, then the system uses the icon from the element.