快捷方式与启动器小部件（Android）

我们已经为两个应用程序屏幕启用了快捷方式。使用manifest，我们初始化了引用快捷方式的活动，如下所示

<activity
    android:name=".ui.shortcuts.ShortCut1"
    android:screenOrientation="portrait"
    android:icon="@drawable/shortcut1"
    android:label="@string/app_shortcut_name1"
    android:theme="@style/AppLightTheme">
       <intent-filter>
            <category android:name="android.intent.category.DEFAULT" />
            <action android:name="android.intent.action.CREATE_SHORTCUT" />
       </intent-filter>

 </activity>

现在在Nova和Action launchers中，它们在快捷方式部分下显示快捷方式，并带有我在清单中给出的图标和文本。如果单击并按住，我可以将图标放置在“主页”选项卡上。之后，我的目标活动立即打开。但当我返回到手机主屏幕时，他们在上一步中创建的快捷方式图标被删除

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我在这里遗漏了什么吗？

来自Nova launcher的Kevin回复了支持电子邮件

它也在不同的线程中解释

在我的例子中，我既有快捷方式添加代码，也希望支持希望从Nova/Action Launcher的小部件屏幕添加快捷方式的用户。所以我做了下面的事情

下面是我在ShortCut1.java类文件中编写的代码。这是活动代码

public class ShortCut1 extends Activity{

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This code runs when the user actually clicks and 
    // opens the shortcut. so redirect him to target screen.  
    openTargetTab(0);


    // This code is useful when called by the Nova/Action launcher's 
    // widget is clicked. So return them with icon, name and target 
    // activity. Once they receive it they will set the short cut icon on home. 
    // Note: Even when the shortcut is clicked, this result is set, 
    //   but nobody reads the response. So it should be ok. 
    Intent resIntent = getResIntent();
    setResult(RESULT_OK, resIntent);

    finish();
}

private Intent getResIntent() {

    Intent shortcutIntent = new Intent();
    // Target intent is set to this own class. So that when the user clicks on the shortcut this intent will be passed.
    Intent target = new Intent(this, ShortCut1.class);
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, target);
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, 
         Application.getContext().getString(R.string.shortcut_name));
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
        Intent.ShortcutIconResource.fromContext(Application.getContext(), 
                                                R.drawable.shortcut1));
    return shortcutIntent;
}

private void openHomeTab(int tabIndex) {

    // Final target screen. 
    Intent intent = new Intent(this, TargetActivity.class);
    startActivity(intent);
}
}

注意：我没有删除或更改清单上的任何代码或添加代码的快捷方式。因为我的应用程序也需要这种支持，所以我保留了代码。因此，当用户单击“添加快捷方式”时，该代码将运行。我在这里所做的唯一更改是，我调用了“Setresult”，并具有适当的意图，这是第三方启动器可以理解的

public class ShortCut1 extends Activity{

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This code runs when the user actually clicks and 
    // opens the shortcut. so redirect him to target screen.  
    openTargetTab(0);


    // This code is useful when called by the Nova/Action launcher's 
    // widget is clicked. So return them with icon, name and target 
    // activity. Once they receive it they will set the short cut icon on home. 
    // Note: Even when the shortcut is clicked, this result is set, 
    //   but nobody reads the response. So it should be ok. 
    Intent resIntent = getResIntent();
    setResult(RESULT_OK, resIntent);

    finish();
}

private Intent getResIntent() {

    Intent shortcutIntent = new Intent();
    // Target intent is set to this own class. So that when the user clicks on the shortcut this intent will be passed.
    Intent target = new Intent(this, ShortCut1.class);
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, target);
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, 
         Application.getContext().getString(R.string.shortcut_name));
    shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
        Intent.ShortcutIconResource.fromContext(Application.getContext(), 
                                                R.drawable.shortcut1));
    return shortcutIntent;
}

private void openHomeTab(int tabIndex) {

    // Final target screen. 
    Intent intent = new Intent(this, TargetActivity.class);
    startActivity(intent);
}
}