Android 滚动显示图库
我想要的是，当我向上滚动滚动滚动视图时，图库应该打开，当我向下滚动时，surfaceview（摄像头）应该像OLX一样可见。我已经在图中解释了我的要求。希望我以适当的方式解释了我的问题 我已经在这张图中解释了我的要求 我还发布了我的xml代码，让您正确理解Android 滚动显示图库,android,xml,Android,Xml,我想要的是，当我向上滚动滚动滚动视图时，图库应该打开，当我向下滚动时，surfaceview（摄像头）应该像OLX一样可见。我已经在图中解释了我的要求。希望我以适当的方式解释了我的问题 我已经在这张图中解释了我的要求 我还发布了我的xml代码，让您正确理解 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.ali.ansofexperts.Question_Photo">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/camera_preview">
</FrameLayout>
<ScrollView
android:layout_width="fill_parent"
android:id="@+id/scrollView"
android:fillViewport="true"
android:layout_height="fill_parent"
>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:layout_width="fill_parent"
android:minHeight="400dp"
android:layout_height="wrap_content"
android:id="@+id/click"
android:orientation="horizontal">
</LinearLayout>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:columnWidth="90dp"
android:numColumns="auto_fit" android:verticalSpacing="10dp"
android:horizontalSpacing="10dp" android:stretchMode="columnWidth"
android:gravity="center" android:layout_gravity="bottom"
android:layout_marginTop="400dp"></GridView>
</RelativeLayout>
</ScrollView>
</RelativeLayout>
/** A basic Camera preview class */
public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
private SurfaceHolder mHolder;
private Camera mCamera;
public CameraPreview(Context context, Camera camera) {
super(context);
mCamera = camera;
// Install a SurfaceHolder.Callback so we get notified when the
// underlying surface is created and destroyed.
mHolder = getHolder();
mHolder.addCallback(this);
// deprecated setting, but required on Android versions prior to 3.0
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
public void surfaceCreated(SurfaceHolder holder) {
// The Surface has been created, now tell the camera where to draw the preview.
try {
mCamera.setPreviewDisplay(holder);
mCamera.startPreview();
} catch (IOException e) {
Log.d(TAG, "Error setting camera preview: " + e.getMessage());
}
}
public void surfaceDestroyed(SurfaceHolder holder) {
// empty. Take care of releasing the Camera preview in your activity.
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
// If your preview can change or rotate, take care of those events here.
// Make sure to stop the preview before resizing or reformatting it.
if (mHolder.getSurface() == null){
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e){
// ignore: tried to stop a non-existent preview
}
// set preview size and make any resize, rotate or
// reformatting changes here
// start preview with new settings
try {
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
} catch (Exception e){
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
}
}
我为初学者发布此参考资料
此参考资料提供了有关我的问题的完整解决方案，希望这会有所帮助。您试图获得该结果的代码在哪里？我没有在java文件中编写任何代码，因为我不知道如何做。我不知道如何做。好的，但是如果这是您要找的，您将无法在这里获得代码。
希望我以正确的方式解释了我的问题。