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思路:
Launcher为了应用程序能够定制自己的快捷图标,就注册了一个 BroadcastReceiver 专门接收其他应用程序发来的快捷图标定制信息。所以只需要根据该 BroadcastReceiver 构造出相对应的Intent并装入我们的定制信息,最后调用 sendBroadcast 方法就可以创建一个快捷图标了。
步骤:
需要添加的权限如下:
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT"/>
<uses-permission android:name="com.android.launcher.permission.UNINSTALL_SHORTCUT"/>
<uses-permission android:name="com.android.launcher.permission.READ_SETTINGS"/>
<uses-permission android:name="com.android.launcher2.permission.READ_SETTINGS"/>
<uses-permission android:name="com.android.launcher3.permission.READ_SETTINGS"/>
核心代码为:
1 /**
2 * 添加当前应用的桌面快捷方式
3 *
4 * @param context
5 */
6 public static void addShortcut(Context context, int appIcon) {
7 Intent shortcut = new Intent(
8 "com.android.launcher.action.INSTALL_SHORTCUT");
9
10 Intent shortcutIntent = context.getPackageManager()
11 .getLaunchIntentForPackage(context.getPackageName());
12 shortcut.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
13 // 获取当前应用名称
14 String title = null;
15 try {
16 final PackageManager pm = context.getPackageManager();
17 title = pm.getApplicationLabel(
18 pm.getApplicationInfo(context.getPackageName(),
19 PackageManager.GET_META_DATA)).toString();
20 } catch (Exception e) {
21 }
22 // 快捷方式名称
23 shortcut.putExtra(Intent.EXTRA_SHORTCUT_NAME, title);
24 // 不允许重复创建(不一定有效)
25 shortcut.putExtra("duplicate", false);
26 // 快捷方式的图标
27 Parcelable iconResource = Intent.ShortcutIconResource.fromContext(context,
28 appIcon);
29 shortcut.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);
30
31 context.sendBroadcast(shortcut);
32 }
33
34 /**
35 * 删除当前应用的桌面快捷方式
36 *
37 * @param context
38 */
39 public static void delShortcut(Context context) {
40 Intent shortcut = new Intent(
41 "com.android.launcher.action.UNINSTALL_SHORTCUT");
42
43 // 获取当前应用名称
44 String title = null;
45 try {
46 final PackageManager pm = context.getPackageManager();
47 title = pm.getApplicationLabel(
48 pm.getApplicationInfo(context.getPackageName(),
49 PackageManager.GET_META_DATA)).toString();
50 } catch (Exception e) {
51 }
52 // 快捷方式名称
53 shortcut.putExtra(Intent.EXTRA_SHORTCUT_NAME, title);
54 Intent shortcutIntent = context.getPackageManager()
55 .getLaunchIntentForPackage(context.getPackageName());
56 shortcut.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
57 context.sendBroadcast(shortcut);
58 }
59
60 /**
61 * 判断当前应用在桌面是否有桌面快捷方式
62 *
63 * @param context
64 */
65 public static boolean hasShortcut(Context context) {
66 boolean result = false;
67 String title = null;
68 try {
69 final PackageManager pm = context.getPackageManager();
70 title = pm.getApplicationLabel(
71 pm.getApplicationInfo(context.getPackageName(),
72 PackageManager.GET_META_DATA)).toString();
73 } catch (Exception e) {
74
75 }
76
77 final String uriStr;
78 if (android.os.Build.VERSION.SDK_INT < 8) {
79 uriStr = "content://com.android.launcher.settings/favorites?notify=true";
80 } else if (android.os.Build.VERSION.SDK_INT < 19) {
81 uriStr = "content://com.android.launcher2.settings/favorites?notify=true";
82 } else {
83 uriStr = "content://com.android.launcher3.settings/favorites?notify=true";
84 }
85 final Uri CONTENT_URI = Uri.parse(uriStr);
86 final Cursor c = context.getContentResolver().query(CONTENT_URI, null,
87 "title=?", new String[]{title}, null);
88 if (c != null && c.getCount() > 0) {
89 result = true;
90 }
91 return result;
92 }
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原文地址:http://www.cnblogs.com/jesonjason/p/5698013.html