Android android.intent.category Purpose and use of. Launcher

The Android Android. Intent. The category. The purpose and use of the LAUNCHER
Sometimes we just create a new Android project in Eclipse, run it, and then we have an APK on the phone with the logo; We seldom consider no icon apk, however, this is to say the android. Intent. The category. The LAUNCHER.
1: we see first with android. The intent. The category. The effect of the project after the operation the LAUNCHER
1.1: project name as

1.2: the manifest. XML is as follows: (note contains android. The intent. The category. The LAUNCHER)

1.3: After running the effect, you can see the screen shot of the phone (you can see there is a launcher (CP3))

2: we can’t see with android. Intent. The category. The effect of the project after the operation the LAUNCHER
2.1: project name as

2.2: the manifest. XML is as follows: (note that there is no android. The intent. The category. The LAUNCHER)

2.3: after the operation, you can see on the screen without any effect
2.4 console display as follows:

indeed installed.
2.5: this time we enter the verify directory:

You can see that it contains com.tcl.cp3-2.apk.
1 and 2 contrast can be found in the android. Intent. The category. The role of the LAUNCHER.


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