Android automatically sets the default browser when it starts

Android automatically sets the default browser when it starts

Reference: http://blog.csdn.net/pediyasm/article/details/7987389
1. Set the principle of the default application
After the default application is set, the following information is added to the mobile phone/data/system/packages. xml file using the UC browser as an example:

1. <Preferred-activities>
   
2. <Item name = "com. UCMobile/. main. UCMobile" match = "200000" set = "2">
   
3. <Set name = "com. UCMobile/. main. UCMobile"/>
   
4. <Set name = "com. android. browser/. BrowserActivity"/>
   
5. <Filter>
   
6. <Action name = "android. intent. action. VIEW"/>
   
7. <Cat name = "android. intent. category. DEFAULT"/>
   
8. <Scheme name = "http"/>
   
9. </Filter>
   
10. </Item>
    
11. </Preferred-activities>

2. Implementation Method. Two methods can be implemented: one is implemented in provision.apk, and the other is implemented in PackageManagerService. java. The Code is as follows:

1. Private void addPreferredActivityForULauncher (){
   
2. IntentFilter filter = new IntentFilter ();
   
3. Filter. addAction ("android. intent. action. VIEW ");
   
4. Filter. addCategory ("android. intent. category. DEFAULT ");
   
5. Filter. addDataScheme ("http ");
   
6. 
   
7. ComponentName preActivity = new ComponentName ("com. UCMobile", "com. UCMobile. main. UCMobile ");
   
8. ComponentName [] set = new ComponentName [] {preActivity, new ComponentName ("com. android. browser", "com. android. browser. BrowserActivity ")};
   
9. MSettings. mPreferredActivities. addFilter (
   
10. New PreferredActivity (filter, 0x200000, set, preActivity ));
    
11. MSettings. writeLPr ();
    
12. }

1. If (isFirstBoot ()){
   
2. AddPreferredActivityForULauncher ();
   
3. }

3. Use the mm command to generate services. jar and push it to the mobile phone/system/framework. At the same time, the uc browser is pre-installed into the system. Restore the factory settings to take effect.