Question

我正在创建或多或少的自定义启动器，基于我发现的非常简单的代码online。基本上它列出了所有应用程序：

final List<ApplicationInfo> applications = packageManager.getInstalledApplications(PackageManager.GET_META_DATA);

然后，当单击一个时，它会启动活动：

    final Intent launchIntent = context.getPackageManager().getLaunchIntentForPackage(applicationInfo.packageName);
    if(launchIntent != null)
    {
        context.startActivity(launchIntent);
    }

这适用于，例如，计算器。但对于其他人，例如联系人，我得到一个例外：

11-25 13:32:43.436: E/ApplicationLaunchListActivity(438): Unable to find explicit activity class {com.android.contacts/com.android.internal.app.ResolverActivity}; have you declared this activity in your AndroidManifest.xml?
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.android.contacts/com.android.internal.app.ResolverActivity}; have you declared this activity in your AndroidManifest.xml?
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.app.Activity.startActivityForResult(Activity.java:2827)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.app.Activity.startActivity(Activity.java:2933)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at com.globalmentor.android.app.Applications.launch(Applications.java:68)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at com.globalmentor.android.app.Applications.launch(Applications.java:52)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at com.globalmentor.android.app.ApplicationLaunchListActivity.onApplicationClick(ApplicationLaunchListActivity.java:41)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at com.globalmentor.android.app.ApplicationListActivity$1.onItemClick(ApplicationListActivity.java:66)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.widget.AdapterView.performItemClick(AdapterView.java:284)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.widget.ListView.performItemClick(ListView.java:3513)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.widget.AbsListView$PerformClick.run(AbsListView.java:1812)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.os.Handler.handleCallback(Handler.java:587)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.os.Handler.dispatchMessage(Handler.java:92)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.os.Looper.loop(Looper.java:130)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at android.app.ActivityThread.main(ActivityThread.java:3683)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at java.lang.reflect.Method.invokeNative(Native Method)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at java.lang.reflect.Method.invoke(Method.java:507)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-25 13:32:43.436: E/ApplicationLaunchListActivity(438):   at dalvik.system.NativeStart.main(Native Method)

有几个明显的问题出现了：我是否必须在活动清单中声明“联系人”活动？但为什么我不必在活动清单中声明计算器？默认的启动器如何处理我在任何时候动态安装的应用程序---写清单后很久？

Android自定义启动器，无需声明清单中的所有应用

0 个答案: