Android程序解壓縮zip文件並加載顯示解壓後的文件內容

剛做了個demo用於解壓縮本地zip文件，並用webview顯示其中的一個html文件，直接上代碼，需要的朋友可以看看

1. public class ZipActivity extends Activity {
2. private static final String TAG = "HelloXmlActivity";
3. private WebView mWebView;
5. private static LinkedHashMap<String, String> widgetInfoMap = new LinkedHashMap<String, String>();
7. //http://blog.csdn.net/com360/article/details/6618086
8. /** Called when the activity is first created. */
9. @Override
10. public void onCreate(Bundle savedInstanceState) {
11. super.onCreate(savedInstanceState);
12. setContentView(R.layout.main);
13. String zipfile = "/sdcard/abc.zip";
14. try {
15. unzip(zipfile, "/sdcard/");//yangguangfu/wujiali/
18. } catch (Exception e) {
19. // TODO Auto-generated catch block
20. e.printStackTrace();
22. }
24. mWebView=(WebView)findViewById(R.id.web);
25. mWebView.loadUrl("file:///sdcard/abc/aaa.html");//此處加載解壓後的html內容
27. }
29. /*
30. * 這個是解壓ZIP格式文件的方法
31. *
32. * @zipFileName：是傳進來你要解壓的文件路徑，包括文件的名字；
33. *
34. * @outputDirectory:選擇你要保存的路勁；
35. *
36. */
37. private void unzip(String zipFileName, String outputDirectory)
38. throws Exception {
39. ZipInputStream in = new ZipInputStream(new FileInputStream(zipFileName));
40. ZipEntry z;
41. String name = "";
42. String extractedFile = "";
43. int counter = 0;
45. while ((z = in.getNextEntry()) != null) {
46. name = z.getName();
47. Log.d(TAG, "unzipping file: " + name);
48. if (z.isDirectory()) {
49. Log.d(TAG, name + "is a folder");
50. // get the folder name of the widget
51. name = name.substring(0, name.length() - 1);
52. File folder = new File(outputDirectory + File.separator + name);
53. folder.mkdirs();
54. if (counter == 0) {
55. extractedFile = folder.toString();
56. }
57. counter++;
58. Log.d(TAG, "mkdir " + outputDirectory + File.separator + name);
59. } else {
60. Log.d(TAG, name + "is a normal file");
61. File file = new File(outputDirectory + File.separator + name);
62. file.createNewFile();
63. // get the output stream of the file
64. FileOutputStream out = new FileOutputStream(file);
65. int ch;
66. byte[] buffer = new byte[1024];
67. // read (ch) bytes into buffer
68. while ((ch = in.read(buffer)) != -1) {
69. // write (ch) byte from buffer at the position 0
70. out.write(buffer, 0, ch);
71. out.flush();
72. }
73. out.close();
74. }
75. }
77. in.close();
79. }
82. }

其中我的abc.zip文件是放在sdcard中的，裡面有2個文件，解壓後生成一個abc文件夾，文件夾下是解壓縮後的2個文件，我用一個webview直接指定加載了解壓後的一個html文件，做的比較粗糙，省去了文件存在判斷，掃描文件名、文件類型，main.xml文件也很簡單，通過上面代碼應該可以看出其中的控件，這裡不再寫xml布局文件了。

更多信息可參考下面文章：

加載html與js: http://www.linuxidc.com/Linux/2012-01/52718.htm

解壓縮zip文件: http://www.linuxidc.com/Linux/2012-01/52719.htm