Android GLSurfaceView模糊效果

最新推荐文章于 2025-04-29 12:00:00 发布

jamespengo

最新推荐文章于 2025-04-29 12:00:00 发布

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分类专栏： android 文章标签： GLSurfaceView

本文链接：https://blog.youkuaiyun.com/java_pengjin/article/details/95196282

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本文探讨了Android中使用GLSurfaceView时遇到的部分手机出现黑屏的问题，并邀请读者分享更好的解决办法，关注GLSurfaceView的显示优化和效果调整。

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import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.opengl.GLException;
import android.opengl.GLSurfaceView;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;
import com.bumptech.glide.request.target.SimpleTarget;
import com.bumptech.glide.request.transition.Transition;

import java.nio.IntBuffer;

import javax.microedition.khronos.egl.EGL10;
import javax.microedition.khronos.egl.EGLContext;
import javax.microedition.khronos.opengles.GL10;


public class GLSurfaceViewBlur {

    public interface BlurCallback {
        public void onBlur();
    }

    /**
     * @param context       上下文
     * @param glSurfaceView 底层view控件
     * @param upperView     需要模糊背景的控件
     */
    public static void doBlur(final Context context, final GLSurfaceView glSurfaceView, final ImageView upperView, BlurCallback callback) {
        glSurfaceView.queueEvent(new Runnable() {
            @Override
            public void run() {
                EGL10 egl = (EGL10) EGLContext.getEGL();
                GL10 gl = (GL10) egl.eglGetCurrentContext().getGL();
                Bitmap snapshotBitmap = createBitmapFromGLSurface(0, 0, glSurfaceView.getWidth(), glSurfaceView.getHeight(), gl);
                upperView.post(new Runnable() {
                    @Override
                    public void run() {
                        Glide.with(context)
                                .load(snapshotBitmap).apply(new RequestOptions()
                                .transforms(new BlurTransformation(context, 25)))
                                .into(new SimpleTarget<Drawable>() {
                                    @Override
                                    public void onResourceReady(@NonNull Drawable resource, @Nullable Transition<? super Drawable> transition) {
                                        upperView.setImageDrawable(resource);
                                        if (callback != null) {
                                            callback.onBlur();
                                        }
                                    }
                                });
                    }
                });
            }
        });


    }

    private static Bitmap createBitmapFromGLSurface(int x, int y, int w, int h, GL10 gl)
            throws OutOfMemoryError {
        int bitmapBuffer[] = new int[w * h];
        int bitmapSource[] = new int[w * h];
        IntBuffer intBuffer = IntBuffer.wrap(bitmapBuffer);
        intBuffer.position(0);

        try {

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