如何在android中使视图模糊化？

android {
    ...
    defaultConfig {
        ...
        renderscriptTargetApi 19
        renderscriptSupportModeEnabled true
    }
}

#pragma version(1)
#pragma rs java_package_name(com.example.app)

rs_allocation inputImage;
rs_allocation outputImage;

int radius;

void root(const uchar4* v_in, uchar4* v_out, const void* usrData, uint32_t x, uint32_t y) {
    float4 sum = 0;
    int count = 0;

    for (int i = -radius; i <= radius; i++) {
        for (int j = -radius; j <= radius; j++) {
            int2 current = {x + i, y + j};
            if (current.x >= 0 && current.y >= 0 && current.x < rsAllocationGetDimX(inputImage) && current.y < rsAllocationGetDimY(inputImage)) {
                sum += rsUnpackColor8888(rsGetElementAt_uchar4(inputImage, current.x, current.y)).rgb;
                count++;
            }
        }
    }

    float4 avg = sum / count;
    *v_out = rsPackColorTo8888(avg);
}

import android.content.Context;
import android.graphics.Bitmap;
import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.ScriptIntrinsicBlur;

public class ImageUtils {
    public static Bitmap blur(Context context, Bitmap inputBitmap, float radius) {
        Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);

        RenderScript renderScript = RenderScript.create(context);
        Allocation tmpIn = Allocation.createFromBitmap(renderScript, inputBitmap);
        Allocation tmpOut = Allocation.createFromBitmap(renderScript, outputBitmap);

        ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(renderScript, Element.U8_4(renderScript));
        blurScript.setInput(tmpIn);
        blurScript.setRadius(radius);
        blurScript.forEach(tmpOut);

        tmpOut.copyTo(outputBitmap);

        renderScript.destroy();

        return outputBitmap;
    }
}

Bitmap originalBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.image);
float radius = 25f; // 模糊半径，可以根据需要进行调整

Bitmap blurredBitmap = ImageUtils.blur(this, originalBitmap, radius);

ImageView imageView = findViewById(R.id.imageView);
imageView.setImageBitmap(blurredBitmap);