CODEWITHSUNDEEP
javaandroidcameraandroid-linearlayout
Navid777
Navid777

Reputation: 3681

Android : Camera's dimensions doesn't match screen's dimensions

I've written my own camera activity, I show the photo's live preview in a FrameLayout, but the live picture doesn't seem natural, it's a bit tall, I think it's because the dimensions of the FrameLayout doesn't match the camera's dimensions. what should I do to fix it ?

Here is the xml file of the camera activity : 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

<FrameLayout
    android:id="@+id/camera_preview"
    android:layout_width="wrap_content"
    android:layout_height="0dip"
    android:layout_weight="0.86" />

<Button
    android:id="@+id/button_capture"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="16dp"
    android:gravity="center"
    android:onClick="capture"
    android:text="Capture" />

<Button
    android:id="@+id/button_accept"
    android:layout_width="115dp"
    android:layout_height="wrap_content"
    android:text="Accept"
    android:visibility="gone"
    android:onClick = "accept" />

<Button
    android:id="@+id/button_retake"
    android:layout_width="107dp"
    android:layout_height="wrap_content"
    android:text="Retake" 
    android:visibility="gone"
    android:onClick = "retake"/>

</LinearLayout>

Upvotes: 0

Views: 247

Answers (2)

Navid777
Navid777

Reputation: 3681

the problem can be solved like this : 

        Parameters cameraParam =  mCamera.getParameters() ;
        double ratio = (double)cameraParam.getPictureSize().height / (double)cameraParam.getPictureSize().width  ;
        Display display = getWindowManager().getDefaultDisplay();
        Point size = new Point();
        try
        {
            display.getSize(size);
        }
        catch(java.lang.NoSuchMethodError ignore)
        {
            size.x = display.getWidth(); 
            size.y = display.getHeight() ;
        }
        int width = size.y;
        int height = size.x;
        previewParam.width =  width;
        previewParam.height = (int)(previewParam.width / ratio) ;

Upvotes: 0

lokoko
lokoko

Reputation: 5803

You would have to scale the image that has been taken from the camera. You could try something like this :

private Bitmap scaleImage(ImageView imageView, String path) {
int targetWidth = imageView.getWidth();
int targetHeight = imageView.getHeight();

BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
bitmapOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, bitmapOptions);
int photoWidth = bitmapOptions.outWidth;
int photoHeight = bitmapOptions.outHeight;

int scaleFactor = Math.min(photoWidth / targetWidth, photoHeight / targetHeight);

bitmapOptions.inJustDecodeBounds = false;
bitmapOptions.inSampleSize = scaleFactor;
bitmapOptions.inPurgeable = true;

return BitmapFactory.decodeFile(path, bitmapOptions);

}

Upvotes: 1

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