Android Basic Environment Setup

?

1. Installing the JDK

Download JDK installation from official website,

Http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

I choose the red, for jdk1.8.0_45.

?

After installing the JDK, you will be prompted to install the JRE, keep it installed in the same directory: in the Java directory

?

2. Configure Environment variables

2. New Java_home: Select the installation path for the JDK, such as K:\Java\jdk1.8.0_45

4. Path added:%java_home%\bin;%java_home%\jre\bin;

6. New classpath:.; %java_home%\lib\dt.jar;%java_home%\lib\tools.jar;

8. Verify

   ?

   ?

   Both the Java and Javac commands are passed, then the configuration is OK!

   ?

3. Download ADT

Because I do not know how to find, from the Baidu cloud disk search one.

?

4. Utility Tools

CTR +shift+o Auto-Add Package

ctr+/???????? Comment Code

Ctr+shit+f???? Automatic Formatting code

Note: If the shortcut key is invalid, please turn off the global hotkey of Sogou input method.

????

?

Since the development environment has not been opened for a long time:

I don't know how much. A fragment.xml configuration, debugging always prompt a problem:

Find an experience on the Web:

?

1. Delete the file with Fragment_***.xml;
2. Open the corresponding activity and replace the actionbaractivity with the activity;
3. Remove Placeholderfragment Entire class

?

Before you modify:

2. Public class Testactivity extendsactionbaractivity {
4. ?
6. [Email protected]
8. ??? protected void onCreate (Bundle savedinstancestate) {
10. ?????? Super. OnCreate (savedinstancestate);
12. ?????? Setcontentview (r.layout.activity_test);
14. ?
16. ?????? if (savedinstancestate = = null) {
18. ????????? Getsupportfragmentmanager (). BeginTransaction ()
20. ???????????????. Add (R.id.container, new placeholderfragment ()). commit ();
22. ??????}
24. ???}
26. ?
28. [Email protected]
30. ??? Public boolean oncreateoptionsmenu (Menu menu) {
32. ?
34. ?????? //inflate the menu; This adds items to the action bar if it is present.
36. ?????? Getmenuinflater (). Inflate (r.menu.test, menu);
38. ?????? return true;
40. ???}
42. ?
44. [Email protected]
46. ??? Public boolean onoptionsitemselected (MenuItem item) {
48. ?????? //Handle Action Bar item clicks here. The Action Bar would
50. ?????? //automatically handle clicks on the Home/up button, so long
52. ?????? //As you specify a parent activity in Androidmanifest.xml.
54. ?????? int id = item.getitemid ();
56. ?????? if (id = = r.id.action_settings) {
58. ????????? return true;
60. ??????}
62. ?????? return Super. onoptionsitemselected (item);
64. ???}
66. ?
68. ??? /**
70. ???? * A placeholder fragment containing a simple view.
72. ???? */
74. ??? Public Static class placeholderfragment extends Fragment {
76. ?
78. ?????? Public Placeholderfragment () {
80. ??????}
82. ?
84. [Email protected]
86. ?????? Public View Oncreateview (layoutinflater inflater, ViewGroup container,
88. ???????????? Bundle savedinstancestate) {
90. ????????? View Rootview = inflater.inflate (R.layout.fragment_test, container,
92. ??????????????? false);
94. ????????? return Rootview;
96. ??????}
98. ???}
100. }

After modification:

2. Public class Testactivity extends Activity {
4. ?
6. [Email protected]
8. ??? protected void onCreate (Bundle savedinstancestate) {
10. ?????? Super. OnCreate (savedinstancestate);
12. ?????? Setcontentview (r.layout.activity_test);
14. ???}
16. ?
18. [Email protected]
20. ??? Public boolean oncreateoptionsmenu (Menu menu) {
22. ?
24. ?????? //inflate the menu; This adds items to the action bar if it is present.
26. ?????? Getmenuinflater (). Inflate (r.menu.test, menu);
28. ?????? return true;
30. ???}
32. ?
34. [Email protected]
36. ??? Public boolean onoptionsitemselected (MenuItem item) {
38. ?????? //Handle Action Bar item clicks here. The Action Bar would
40. ?????? //automatically handle clicks on the Home/up button, so long
42. ?????? //As you specify a parent activity in Androidmanifest.xml.
44. ?????? int id = item.getitemid ();
46. ?????? if (id = = r.id.action_settings) {
48. ????????? return true;
50. ??????}
52. ?????? return Super. onoptionsitemselected (item);
54. ???}
56. }

?

Android Basic Environment Setup