有時一個大項目下面會有很多個小子產品，如果小子產品之間沒有聯系，這時可以将每個小子產品作為單獨的項目，生成apk。
這時就涉及到怎麼将多個apk放到一個項目中。
首先，将小子產品生成的apk放到項目的assets檔案夾中
java代碼：
1. package cn.onecomm.zhenghe.activity;
2.
3. import java.io.File;
4. import java.io.FileOutputStream;
5. import java.io.IOException;
6. import java.io.InputStream;
7. import java.util.ArrayList;
8. import java.util.List;
9.
10. import android.app.Activity;
11. import android.app.AlertDialog;
12. import android.app.AlertDialog.Builder;
13. import android.content.BroadcastReceiver;
14. import android.content.ComponentName;
15. import android.content.Context;
16. import android.content.DialogInterface;
17. import android.content.Intent;
18. import android.content.IntentFilter;
19. import android.content.pm.PackageInfo;
20. import android.content.pm.PackageManager;
21. import android.net.Uri;
22. import android.os.Bundle;
23. import android.util.Log;
24. import android.view.View;
25. import android.view.View.OnClickListener;
26. import android.widget.ImageView;
27. import android.widget.Toast;
28.
29. public class MainActivity extends Activity {
30. private ImageView baoxian_zhushou;
31. <String> packagNameList;
32. private MyReceiver receiver;
33.
34. public void onCreate(Bundle savedInstanceState) {
35. super.onCreate(savedInstanceState);
36. setContentView(R.layout.main);
37.
38. initpackagNameList();
39.
40. // 監聽系統新安裝程式的廣播
41. receiver = new MyReceiver();
42. filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);// 注冊廣播機制
43. filter.addDataScheme("package"); // 必須添加這項，否則攔截不到廣播
44. registerReceiver(receiver, filter);
45.
46. baoxian_zhushou = (ImageView) findViewById(R.id.baoxian_zhushou);
47.
48. // 首頁面小子產品的圖示
49. baoxian_zhushou.setOnClickListener(new OnClickListener() {
50. public void onClick(View v) {
51.
52. // 檢查是否已經安裝
53. Log.d("time", "clicked start " + System.currentTimeMillis()
54. + "");
55. installed = detectApk("cn.oncomm.activity");
56.
57. if (installed) {// 已經安裝直接起動
58. Log.d("time", "getPackageManager start "
59. + System.currentTimeMillis() + "");
60.
61. intent = new Intent();
62. // 元件名稱，第一個參數是包名，也是主配置檔案Manifest裡設定好的包名 第二個是類名，要帶上包名
63. intent.setComponent(new ComponentName("cn.oncomm.activity",
64. "cn.oncomm.activity.MailActivity"));
65. intent.setAction(Intent.ACTION_VIEW);
66.
67. Log.d("time", "setAction start "
68. + System.currentTimeMillis() + "");
69. startActivity(intent);
70.
71. } else {// 未安裝先安裝
72. //
73. // get the cacheDir.
74. fileDir = getFilesDir();
75. cachePath = fileDir.getAbsolutePath()
76. + "/pingAnAccident3.0.apk";
77. retrieveApkFromAssets(MainActivity.this,
78. "pingAnAccident3.0.apk", cachePath);
79. showInstallConfirmDialog(MainActivity.this, cachePath);
80. }
81. }
82. });
83. }
84.
85. // 捆綁安裝
86. public boolean retrieveApkFromAssets(Context context, String fileName,
87. String path) {
88. bRet = false;
89.
90. try {
91. file = new File(path);
92. if (file.exists()) {
93. return true;
94. } else {
95. file.createNewFile();
96. is = context.getAssets().open(fileName);
97. fos = new FileOutputStream(file);
98.
99. temp = new byte[1024];
100. i = 0;
101. i = is.read(temp)) != -1) {
102. fos.write(temp, 0, i);
103. }
104. fos.flush();
105. fos.close();
106. is.close();
107.
108. bRet = true;
109. }
110.
111. } catch (IOException e) {
112. Toast.makeText(context, e.getMessage(), 2000).show();
113. builder = new Builder(context);
114. builder.setMessage(e.getMessage());
115. builder.show();
116. e.printStackTrace();
117. }
118.
119. return bRet;
120. }
121.
122. /**
123. *提示使用者安裝程式
124. */
125. public void showInstallConfirmDialog(final Context context,
126. final String filePath) {
127. tDialog = new AlertDialog.Builder(context);
128. tDialog.setIcon(R.drawable.info);
129. tDialog.setTitle("未安裝該程式");
130. tDialog.setMessage("請安裝該程式");
131.
132. tDialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {
133.
134. public void onClick(DialogInterface dialog, int which) {
135.
136. // 修改apk權限
137. try {
138. command = "chmod " + "777" + " " + filePath;
139. runtime = Runtime.getRuntime();
140. runtime.exec(command);
141. } catch (IOException e) {
142. e.printStackTrace();
143. }
144. // install the apk.
145. intent = new Intent(Intent.ACTION_VIEW);
146. intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
147. intent.setDataAndType(Uri.parse("file://" + filePath),
148. "application/vnd.android.package-archive");
149. context.startActivity(intent);
150.
151. }
152. });
153.
154. tDialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
155.
156. public void onClick(DialogInterface dialog, int which) {
157. }
158. });
159.
160. tDialog.show();
161. }
162.
163. /**
164. * 檢測是否已經安裝
165. *
166. * @param packageName
167. * @return true已安裝 false未安裝
168. */
169. private boolean detectApk(String packageName) {
170. return packagNameList.contains(packageName.toLowerCase());
171.
172. }
173.
174. private void initpackagNameList() {
175. // 初始化小子產品清單
176. packagNameList = new ArrayList<String>();
177. manager = this.getPackageManager();
178. <PackageInfo> pkgList = manager.getInstalledPackages(0);
179. i = 0; i < pkgList.size(); i++) {
180. pI = pkgList.get(i);
181. packagNameList.add(pI.packageName.toLowerCase());
182. }
183.
184. }
185.
186. /**
187. *
188. * 設定廣播監聽
189. *
190. */
191. private class MyReceiver extends BroadcastReceiver {
192. public void onReceive(Context context, Intent intent) {
193. if (intent.getAction().equals(Intent.ACTION_PACKAGE_ADDED)) {
194.
195. packName = intent.getDataString().substring(8);
196.
197. Log.e(intent.getDataString() + "====", packName);
198. // package:cn.oncomm.activity cn.oncomm.activity
199. // packName為所安裝的程式的包名
200. packagNameList.add(packName.toLowerCase());
201.
202. // 删除file目錄下的所有以安裝的apk檔案
203. file = getFilesDir();
204. files = file.listFiles();
205. for (File f : files) {
206. if (f.getName().endsWith(".apk")) {
207. f.delete();
208. }
209. }
210.
211. }
212. }
213. }
214. } 首頁面的
[html]
view plain
- main.xml檔案：
1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3. android:id="@+id/layContain" android:layout_width="fill_parent"
4. android:layout_height="fill_parent" android:orientation="horizontal">
5. <!-- android:background="#FFC0CB"-->
6.
7.
8. <LinearLayout android:id="@+id/layFirst"
9. android:layout_width="400px" android:layout_height="fill_parent"
10. android:orientation="vertical" android:layout_marginBottom="50dp">
11.
12. <LinearLayout android:layout_width="fill_parent"
13. android:layout_height="fill_parent" android:orientation="vertical">
14.
15. <LinearLayout android:layout_width="fill_parent"
16. android:layout_height="wrap_content" android:orientation="horizontal"
17. android:layout_marginTop="30dp">
18.
19. <LinearLayout android:layout_width="wrap_content"
20. android:layout_height="wrap_content" android:layout_weight="1"
21. android:gravity="center_horizontal" android:orientation="vertical">
22.
23. <ImageView android:id="@+id/baoxian_zhushou"
24. android:layout_width="wrap_content" android:layout_height="wrap_content"
25. android:src="@drawable/icon" />
26. <TextView android:layout_width="wrap_content"
27. android:layout_height="wrap_content" android:text="平安助手"
28. />
29.
30. </LinearLayout>
31.
32.
33. </LinearLayout>
34. </LinearLayout>
35. </LinearLayout>
36. </LinearLayout>
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