取消日历应用程序中的完成按钮 - 它是Action Bar的一部分吗？

Question

嗨,我在日历应用程序中引用了取消/完成按钮.这两个按钮固定在顶部,即使您滚动底部的"窗体",它们也始终可见.

我可以知道,它是Action Bar的一部分吗？如果是这样,实现应该如何？

Answer 1

请记住,Android是开源的,并且运行aosp的Android设备上预装的大多数应用程序都是开源的.

这是项目:https://github.com/android/platform_packages_apps_calendar

是的,这是一个自定义的ActionBar设置,这是XML:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:divider="?android:attr/dividerVertical"
android:dividerPadding="12dip
android:showDividers="middle">

<!-- id must match corresponding menu item id -->
<LinearLayout
    android:id="@+id/action_cancel
    style="@style/EditEventCustomActionButton">

<ImageView
    android:src="@drawable/ic_menu_cancel_holo_light"
    style="@style/EditEventCustomActionButtonImage" />
    <TextView
        android:text="@string/discard_label"
        style="@style/EditEventCustomActionButtonText" />

</LinearLayout>

<!-- id must match corresponding menu item id -->
<LinearLayout
    android:id="@+id/action_done"
    style="@style/EditEventCustomActionButton">

    <ImageView
        android:src="@drawable/ic_menu_done_holo_light"
        style="@style/EditEventCustomActionButtonImage" />
    <TextView
        android:text="@string/save_label"
        style="@style/EditEventCustomActionButtonText" />

    </LinearLayout
</LinearLayout>

稍后在运行时设置:

View actionBarButtons = inflater.inflate(R.layout.edit_event_custom_actionbar,
new LinearLayout(mContext), false);
View cancelActionView = actionBarButtons.findViewById(R.id.action_cancel);
cancelActionView.setOnClickListener(mActionBarListener);
View doneActionView = actionBarButtons.findViewById(R.id.action_done);
doneActionView.setOnClickListener(mActionBarListener);
mContext.getActionBar().setCustomView(actionBarButtons);

希望有所帮助

Answer 2

仅供共享...要实现为sherlock片段,使用的LayoutInflater是oncreateView方法中的一个:

    setHasOptionsMenu(true);
    View actionBarButtons = inflater.inflate(R.layout.edit_event_custom_actionbar, new LinearLayout(getActivity()), false);

    View cancelActionView = actionBarButtons.findViewById(R.id.action_cancel);
    cancelActionView.setOnClickListener(mActionBarListener);

    View doneActionView = actionBarButtons.findViewById(R.id.action_done);
    doneActionView.setOnClickListener(mActionBarListener);


    getSherlockActivity().getSupportActionBar().setHomeButtonEnabled(false);
    getSherlockActivity().getSupportActionBar().setDisplayShowHomeEnabled(false);
    getSherlockActivity().getSupportActionBar().setDisplayHomeAsUpEnabled(false);
    getSherlockActivity().getSupportActionBar().setDisplayShowTitleEnabled(false);

    getSherlockActivity().getSupportActionBar().setDisplayShowCustomEnabled(true);
    getSherlockActivity().getSupportActionBar().setCustomView(actionBarButtons);

动作栏监听器所在的位置

private final View.OnClickListener mActionBarListener = new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        onActionBarItemSelected(v.getId());
    }
};

private boolean onActionBarItemSelected(int itemId) {
    switch (itemId) {
    case R.id.action_done:
        save();
        break;
    case R.id.action_cancel:
        System.err.println("cancel");
        getActivity().onBackPressed();
        break;
    }
    return true;
}

并且布局与之前的帖子相同:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:divider="?android:attr/dividerVertical"
android:dividerPadding="12dip
android:showDividers="middle">

<!-- id must match corresponding menu item id -->
<LinearLayout
    android:id="@+id/action_cancel
    style="@style/EditEventCustomActionButton">

<ImageView
    android:src="@drawable/ic_menu_cancel_holo_light"
    style="@style/EditEventCustomActionButtonImage" />
    <TextView
        android:text="@string/discard_label"
        style="@style/EditEventCustomActionButtonText" />

</LinearLayout>

<!-- id must match corresponding menu item id -->
<LinearLayout
    android:id="@+id/action_done"
    style="@style/EditEventCustomActionButton">

    <ImageView
        android:src="@drawable/ic_menu_done_holo_light"
        style="@style/EditEventCustomActionButtonImage" />
    <TextView
        android:text="@string/save_label"
        style="@style/EditEventCustomActionButtonText" />

    </LinearLayout
</LinearLayout>