For modena.css (the default JavaFX look and feel definition in Java 8), a slight shaded background was introduced for all controls (and also to panes if a control is loaded). You can remove this by specifying that the default background is transparent. This can be done by adding the following line to your application’s CSS … Read more
The manner I have used before is to use a wild color (a color no one in their right mind would use) for the BackColor and then set the transparency key to that. this.BackColor = Color.LimeGreen; this.TransparencyKey = Color.LimeGreen;
The following is the code I used in the app I am working You will have to use the OnScrollChanged function in your ScrollView. ActionBar doesn’t let you set the opacity , so set a background drawable on the actionbar and you can change its opacity based on the amount of scroll in the scrollview. … Read more
If you want a transparent background in three.js, you need pass in the alpha parameter to the WebGLRenderer constructor. var renderer = new THREE.WebGLRenderer( { alpha: true } ); You can leave the clear color at the default value. renderer.setClearColor( 0x000000, 0 ); // the default three.js r.71
Try using null for the background … android:background=”@null”
i think it can help, all black will be transparent root.wm_attributes(‘-transparentcolor’,’black’)
I did that recently, to answer a question of my project manager. The function transforming gray to transparency is: private Image TransformGrayToTransparency(BufferedImage image) { ImageFilter filter = new RGBImageFilter() { public final int filterRGB(int x, int y, int rgb) { return (rgb << 8) & 0xFF000000; } }; ImageProducer ip = new FilteredImageSource(image.getSource(), filter); return … Read more
This worked for me, mWebView.setBackgroundColor(Color.TRANSPARENT);
Put your demo info in a different activity and give it the following theme. <style name=”Transparent” parent=”@android:style/Theme.NoTitleBar”> <item name=”android:windowContentOverlay”>@null</item> <item name=”android:windowIsTranslucent”>true</item> <item name=”android:windowBackground”>@android:color/transparent</item> <item name=”android:windowNoTitle”>true</item> <item name=”android:backgroundDimEnabled”>false</item> </style> If you’re using ActionBarSherlock change parent to @style/Theme.Sherlock. This will give you a transparent activity, so you will be able to see the activity below it. Now … Read more
import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.graphics.BlurMaskFilter.Blur; import android.graphics.BitmapFactory; import android.graphics.BlurMaskFilter; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.PorterDuff.Mode; import android.graphics.PorterDuffXfermode; import android.os.Bundle; import android.view.MotionEvent; import android.view.View; public class StartActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(new TouchView(this)); } class TouchView extends View{ Bitmap bgr; Bitmap overlayDefault; Bitmap … Read more