Question

有没有办法在高频直播卡中使用GDK的Slider.GracePeriod？我有菜单选项“发送消息”，点击它并输入你的消息后，我想用宽限期滑块显示一个“发送消息...”警告对话框（或类似的东西）。但是，我没有成功获得宽限期滑块出现在对话框中（即使用传递给Dialog.setContentView()的相同视图作为Slider.from()的参数），实时卡菜单活动或其他任何地方。有什么想法吗？

（这很可能与此无关，但我确实注意到Google的GDK参考提到宽限期滑块在“timeInMs”中给定的宽限期内动画。这听起来像是函数或构造函数的参数，但是如果所以我找不到一个。如果你没有设置它，也许宽限期滑块不起作用？）

注意：我知道this现有的问题，但它还没有得到解答，它涉及滑块和真卡的不同类型，所以另一个问题似乎是合适的。

Answer 1

以下内容适用于您;以下类包含宽限期/确认对话框逻辑，以提供与内置Glassware相同的体验。

public class GracePeriodDialog extends Dialog {
    private static final long COMPLETION_MESSAGE_TIMEOUT_MILLIS = 1000;

    private final DialogInterface.OnClickListener mOnClickListener;
    private final AudioManager mAudioManager;
    private final GestureDetector mGestureDetector;
    private final CharSequence mCompletedText;

    private View mContentView;
    private Slider.GracePeriod mGracePeriod;

    /** Handles the tap gesture to complete the grace period early. */
    private final GestureDetector.BaseListener mBaseListener =
            new GestureDetector.BaseListener() {
        @Override
        public boolean onGesture(Gesture gesture) {
            if (gesture == Gesture.TAP) {
                // Cancel the grace period if the user tapped early so that the completion event
                // doesn't fire twice.
                mGracePeriod.cancel();
                showCompletion();
                return true;
            }
            return false;
        }
    };

    /** Called when the grace period has ended to show the completion message. */
    private final Slider.GracePeriod.Listener mGracePeriodListener =
            new Slider.GracePeriod.Listener() {
        @Override
        public void onGracePeriodEnd() {
            showCompletion();
        }

        @Override
        public void onGracePeriodCancel() {}
    };

    /**
     * Called after a 1-second delay when the grace period has completed (or the user tapped).
     * Forwards the successful completion as an {@code onClick} event on the dialog.
     */
    private final Runnable mDoneRunnable = new Runnable() {
        @Override
        public void run() {
            if (mOnClickListener != null) {
                // Since Glass dialogs do not have buttons, the index passed to onClick is always 0.
                mOnClickListener.onClick(GracePeriodDialog.this, 0);
            }
            dismiss();
        }
    };

    /**
     * Creates a new {@code GracePeriodDialog}. The dialog can show a progress message and icon
     * while the grace period is running, which changes to a completion message when the grace
     * period ends (for example, "Sending" -> "Sent".
     */
    public GracePeriodDialog(Context context,
                       int progressIconId, CharSequence progressText,
                       CharSequence completedText,
                       DialogInterface.OnClickListener onClickListener) {
        super(context);

        mOnClickListener = onClickListener;
        mAudioManager =
                (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        mGestureDetector =
                new GestureDetector(context).setBaseListener(mBaseListener);
        mCompletedText = completedText;

        updateContentView(progressText, progressIconId);
    }

    @Override
    public void onAttachedToWindow() {
        super.onAttachedToWindow();
        mGracePeriod = Slider.from(mContentView).startGracePeriod(mGracePeriodListener);
    }

    @Override
    public void onBackPressed() {
        mGracePeriod.cancel();
        super.onBackPressed();
    }

    /** Overridden to let the gesture detector handle a possible tap event. */
    @Override
    public boolean onGenericMotionEvent(MotionEvent event) {
        return mGestureDetector.onMotionEvent(event)
                || super.onGenericMotionEvent(event);
    }

    private void showCompletion() {
        mAudioManager.playSoundEffect(Sounds.SUCCESS);
        updateContentView(mCompletedText, R.drawable.ic_done_50);
        mContentView.postDelayed(mDoneRunnable, COMPLETION_MESSAGE_TIMEOUT_MILLIS);
    }

    private void updateContentView(CharSequence text, int iconResId) {
        mContentView = new CardBuilder(getContext(), CardBuilder.Layout.MENU)
                .setText(text)
                .setIcon(iconResId)
                .getView();
        setContentView(mContentView);
    }
}

可能需要注意的一点是：在显示对话框或开始宽限期之前，请确保您的菜单活动没有完成（例如，在onOptionsMenuClosed中）。

高频直播卡中的宽限期滑块？

1 个答案: