Android的磨损WearableListView ImageView的选择 [英] Android wear WearableListView ImageView selector

问题描述

我想创建一个列表视图，如下所示： -

I am trying to create a list view as follows:-

现在，我成功地使用WearableListView适配器所做的列表视图的工作。但是，我使用的静态图像的ImageView的。我想要的是创建这个灰色和蓝色样的动画时，滚动时的特定列表元素集中。我怎么做？我试着用了ImageView的一个选择器的XML文件，但看来这ListView的犯规利用这个选择器（安卓州为中心，选择，pressed，没有任何工程）的。任何想法，我怎么得到我想要的？希望我做了我的问题清楚。谢谢你。

Now, I have made the list view work successfully using the WearableListView adapter. However, I am using static images in the ImageView. What I want is to create this gray and blue kind of animation when a particular list element is focused while scrolling. How do I do that? I tried using a selector xml file for the ImageView but it seems this ListView doesnt make use of this selector(android:state-focused, selected, pressed-nothing works). Any idea how do I get what I want? Hope I made my question clear. Thanks.

推荐答案

是的，你说得对，图像选择不工作，为什么？我不知道到底，我们不会对任何文档阅读。

Yes you are right, image selector doesn't work, why? I don't know exactly and we don't have any documentation on it to read.

但幸运的是我已经成功地实现了这一局面，它几乎类似于默认设置屏幕。

But fortunately I have implemented this scenario successfully and it's almost similar to the default settings screen.

有关解决办法，我已经建立圈子里面的颜色下面的方法：

For workaround, I have set circle color inside below methods:

1. onScaleUpStart（） - 集圈颜色选择的项目
2. onScaleDownStart（） - 集圈颜色非选择项

1. onScaleUpStart() - Set circle color for selected item
2. onScaleDownStart() - Set circle color for non-selected items.

我已经采取CircleImageView和TextView中我的项目布局中。例如code可能是：

I have taken CircleImageView and TextView inside my item layout. Example code could be:

private final class MyItemView extends FrameLayout implements WearableListView.Item {

    final CircledImageView image;
    final TextView text;
    private float mScale;
    private final int mFadedCircleColor;
    private final int mChosenCircleColor;

    public MyItemView(Context context) {
        super(context);
        View.inflate(context, R.layout.wearablelistview_item, this);
        image = (CircledImageView) findViewById(R.id.image);
        text = (TextView) findViewById(R.id.text);
        mFadedCircleColor = getResources().getColor(android.R.color.darker_gray);
        mChosenCircleColor = getResources().getColor(android.R.color.holo_blue_dark);
    }

    @Override
    public float getProximityMinValue() {
        return mDefaultCircleRadius;
    }

    @Override
    public float getProximityMaxValue() {
        return mSelectedCircleRadius;
    }

    @Override
    public float getCurrentProximityValue() {
        return mScale;
    }

    @Override
    public void setScalingAnimatorValue(float value) {
        mScale = value;
        image.setCircleRadius(mScale);
        image.setCircleRadiusPressed(mScale);
    }

    @Override
    public void onScaleUpStart() {
        image.setAlpha(1f);
        text.setAlpha(1f);
        image.setCircleColor(mChosenCircleColor);
    }

    @Override
    public void onScaleDownStart() {
        image.setAlpha(0.5f);
        text.setAlpha(0.5f);
        image.setCircleColor(mFadedCircleColor);
    }
}

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