Detailed description of how Android starts a Java program APPLICATION

Android, as a Linux-based mobile phone operating system, has the greatest support for various applications. This is also a concern for developers. Here we will give you a detailed introduction of the specific application skills for Android to start Java programs, so that you can easily interpret the functions of this operating system.

First, go to shell

 
 

  
  
C:\Documents and Settings\mawenjian>adb shell 
 
 

Let's take a look at the help of the command.

 
 

  
  
# am -help   
  
  
am -help   
  
  
Error: Unknown command: -help   
  
  
usage: am [start|instrument]   
  
  
am start [-a < ACTION>] [-d < DATA_URI>] 
[-t < MIME_TYPE>]   
  
  
[-c < CATEGORY> [-c < CATEGORY>] ...]   
  
  
[-e < EXTRA_KEY> < EXTRA_VALUE> 
[-e < EXTRA_KEY> < EXTRA_VALUE> ...]   
  
  
[-n < COMPONENT>] [-D] [< URI>]   
  
  
am instrument [-e < ARG_NAME> < ARG_VALUE>] 
[-p < PROF_FILE>]   
  
  
[-w] < COMPONENT> 
 
 

Okay. Try to start the browser.

 
 

  
  
# am start -n com.google.android.browser/
com.google.android.browser.BrowserActivity   
  
  
am start -n com.google.android.browser/com.google.
android.browser.BrowserActivity   
  
  
Starting: Intent { comp={com.google.android.browser/
com.google.android.browser.BrowserActivity} } 
 
 

OK.

Try the following command:

 
 

  
  
# am start -a android.intent.action.VIEW -d 
http://mwjian.javaeye.com   
  
  
am start -a android.intent.action.VIEW -d 
http://mwjian.javaeye.com   
  
  
Starting: Intent { action=android.intent.action.VIEW 
data=http://mwjian.javaeye.com }   
  
  
# am start -a android.intent.action.CALL -d tel:88888888   
  
  
am start -a android.intent.action.CALL -d tel:88888888   
  
  
Starting: Intent { action=android.intent.action.CALL 
data=tel:88888888 }   
  
  
# am start -a android.intent.action.ALL_APPS   
  
  
am start -a android.intent.action.ALL_APPS   
  
  
Starting: Intent { action=android.intent.action.ALL_APPS }   
  
  
# am start -a android.intent.action.VIEW geo:0,0?q=shanghai   
  
  
am start -a android.intent.action.VIEW geo:0,0?q=shanghai   
  
  
Starting: Intent { action=android.intent.action.VIEW 
data=geo:0,0?q=shanghai }