Android - Glide 为具有透明背景的 gif 添加白色背景

Question

我正在开发一个自定义加载对话框，它将用于 Android 应用程序的每个活动。 gif 具有透明背景，但是当我使用 de Glide 库加载它时，它会添加白色背景。这是代码：

布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/custom_loading_layout">

    <ImageView
        android:id="@+id/loading_image_animation"
        android:layout_width="80dp"
        android:layout_height="80dp" />

</RelativeLayout>

ViewDialog 类，每个活动都会调用它：

public class ViewDialog {
    Activity activity;
    Dialog dialog;

    public ViewDialog(Activity activity) {
        this.activity = activity;
    }

    public void showDialog() {
        dialog  = new Dialog(activity);
        //dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        //...set cancelable false so that it's never get hidden
        dialog.setCancelable(false);
        //...that's the layout i told you will inflate later
        //dialog.setContentView(R.layout.custom_loading_layout);
        RelativeLayout contentView = (RelativeLayout) ((Activity) activity)
                .getLayoutInflater().inflate(R.layout.custom_loading_layout, null);
        dialog.setContentView(contentView);

        final ImageView image = (ImageView) contentView.findViewById(R.id.loading_image_animation);
        

        Glide.with(activity).asGif().load(R.raw.wannaplay_loading).diskCacheStrategy(DiskCacheStrategy.RESOURCE).into(image);
        dialog.show();
    }

    //..also create a method which will hide the dialog when some work is done
    public void hideDialog(){
        dialog.dismiss();
    }
}

这是它的样子，它不应该有白色背景 Screenshot

Answer 1

我刚刚弄明白了。我删除了在 ViewDialog 类中添加这一行的白色背景

dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));