> 判断程序是否连接网络还需要在XML中添加数据
> <uses-permission android:name=
"android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name=
"android.permission.INTERNET"/>
1./**
2. * 检测网络是否连接
3. * @return
4. */
5. private boolean checkNetworkState() {
6. boolean flag =
false;
7.
8. ConnectivityManager manager= (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
9.
10. NetworkInfo info = manager.getActiveNetworkInfo();
9.
13. if (info !=
null && info.isAvailable()) {
14. isNetworkAvailable();
15. }
else {
16. setNetwork();
17. }
18.
19. return flag;
20. }
21.
22.
23. /**
24. * 网络未连接时，调用设置方法
25. */
26. private void setNetwork(){
27. Toast.makeText(
this,
"wifi is closed!", Toast.LENGTH_SHORT).show();
28.
29. AlertDialog.Builder builder =
new AlertDialog.Builder(
this);
30. builder.setIcon(R.drawable.ic_launcher);
31. builder.setTitle(
"网络提示信息");
32. builder.setMessage(
"网络不可用，如果继续，请先设置网络！");
33. builder.setPositiveButton(
"设置",
new OnClickListener() {
34. @Override
35. public void onClick(DialogInterface dialog,
int which) {
36. Intent intent =
null;
37. /**
38. * 判断手机系统的版本！如果API大于10 就是3.0+
39. * 因为3.0以上的版本的设置和3.0以下的设置不一样，调用的方法不同
40. */
41. if (android.os.Build.VERSION.SDK_INT >
10) {
42. intent =
new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
43. }
else {
44. intent =
new Intent();
45. ComponentName component =
new ComponentName(
46. "com.android.settings",
47. "com.android.settings.WirelessSettings");
48. intent.setComponent(component);
49. intent.setAction(
"android.intent.action.VIEW");
50. }
51. startActivity(intent);
52. }
53. });
54.
55. builder.setNegativeButton(
"不开启",
new OnClickListener() {
56. @Override
57. public void onClick(DialogInterface dialog,
int which) {
58. dialog.dismiss();
59. }
60. });
61. builder.create();
62. builder.show();
63. }
64.
65. /**
66. * 网络已经连接，然后去判断是wifi连接还是GPRS连接
67. * 设置一些自己的逻辑调用
68. */
69. private void isNetworkAvailable(){
70.
71. State gprs = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();
72. State wifi = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
73. if(gprs == State.CONNECTED || gprs == State.CONNECTING){
74. Toast.makeText(
this,
"wifi is open! gprs", Toast.LENGTH_SHORT).show();
75. }
76.
77. if(wifi == State.CONNECTED || wifi == State.CONNECTING){
78. Toast.makeText(
this,
"wifi is open! wifi", Toast.LENGTH_SHORT).show();
79. loadAdmob();
80. }
81.
82. }
83.
84. /**
85. * 在wifi状态下 加载admob广告
86. */
87. private void loadAdmob(){
88. ll = (LinearLayout) findViewById(R.id.load_ads);
89. ll.removeAllViews();
90. adsView =
new AdView(
this, AdSize.BANNER,
"a15194a1ac9505d");
91. ll.addView(adsView);
92.
93. adsView.loadAd(
new AdRequest());
94. }
