java - 获取 Activity 的 ResolveInfo 对象，知道它的名称？

Question

我想将我的 Activity (com.myapp.launcher.settings) 添加到一个空的 ArrayList。

    ArrayList<ResolveInfo> selectedApps = new ArrayList<ResolveInfo>();
    selectedApps.add(/*WHAT GOES IN HERE?*/);

但我不知道如何通过我的 Activity 获取 ResolveInfo 对象。

---

我设法制定了一个解决方法，循环遍历所有应用程序以查找我的 Activity 。但它不是很有效或实用:

    // Get an array list of all apps
    ArrayList<ResolveInfo> allApps = (ArrayList<ResolveInfo>) pm.queryIntentActivities(intent, PackageManager.PERMISSION_GRANTED);
    for(final ResolveInfo app : allApps) {
        // If it's name is "com.myapp.launcher.settings" add it
        if(app.activityInfo.name.equals("com.myapp.launcher.settings")) {
                selectedApps.add(app);
            }
        }

Answer 1

只需使用 resolveActivity具有明确的 Intent。大概是这样的:

Intent intent = new Intent();
intent.setComponent(new ComponentName("com.myapp", "com.myapp.launcher.settings"));
ResolveInfo app = pm.resolveActivity(intent, 0);
selectedApps.add(app);