视图不会填满整个屏幕

Question

我的所有内容都与https://github.com/googlesamples/android-vision/tree/master/visionSamples/multi-tracker中的示例相同,但我的活动布局是这样的:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/topLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:keepScreenOn="true"
    android:weightSum="100"
    android:orientation="horizontal">

    <be.citylife.communitypurchaseapp.view.camera.CameraSourcePreview
        android:id="@+id/preview"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="60">

        <be.citylife.communitypurchaseapp.view.camera.GraphicOverlay
            android:id="@+id/overlay"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </be.citylife.communitypurchaseapp.view.camera.CameraSourcePreview>

    <FrameLayout
        android:id="@+id/sideContainer"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="40"/>

</LinearLayout>

我的平板电脑处于横向状态,我希望cameraPreviewSource始终保持高度并填满整个屏幕的高度,然后立即关闭它我有一个片段填充其余部分.

除了我的previewsource没有填满整个高度之外,这种布局是有效的.它上面有一个黑色横幅.甚至我的宽度实际上比我想要的小,你可以在屏幕截图上看到:

http://i61.tinypic.com/vctmw0.png

我在onLayout函数中使用CameraSourcePreview和宽度和高度,但它没有帮助.我在预览中知道它确实将屏幕填满了屏幕的底部,但在平板电脑上却没有.

LP.

任何人都知道如何解决这个问题？

编辑:

我认为这与此有关:

  @Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        int width = 320;
        int height = 240;
        if (mCameraSource != null) {
            Size size = mCameraSource.getPreviewSize();
            if (size != null) {
                width = size.getWidth();
                height = size.getHeight();
            }
        }

        // Swap width and height sizes when in portrait, since it will be rotated 90 degrees
        if (isPortraitMode()) {
            int tmp = width;
            width = height;
            height = tmp;
        }

        final int layoutWidth = right - left;
        final int layoutHeight = bottom - top;

        // Computes height and width for potentially doing fit width.
        int childWidth = layoutWidth;
        int childHeight = (int)(((float) layoutWidth / (float) width) * height);

        // If height is too tall using fit width, does fit height instead.
        if (childHeight > layoutHeight) {
            childHeight = layoutHeight;
            childWidth = (int)(((float) layoutHeight / (float) height) * width);
        }

        for (int i = 0; i < getChildCount(); ++i) {
            getChildAt(i).layout(0, 0, childWidth, childHeight);
        }

        try {
            startIfReady();
        } catch (IOException e) {
            Log.e(TAG, "Could not start camera source.", e);
        }
    }

这是CameraSourcePreview的onlayout方法.

Answer 1

从CameraSourcePreview注释或删除下面的行,它应该没问题.我遇到了和你一样的问题,现在已经解决了.

if (childHeight > layoutHeight) {
    childHeight = layoutHeight;
    childWidth = (int)(((float) layoutHeight / (float) height) * width);
}