Question

我正在尝试模糊某些图像1024x1024，有时会出现java.lang.OutOfMemoryError，我不知道为什么。

我正在直接在平板电脑Android 4.1.2中进行测试，而且我始终有1.5gb的Ram免费。

这是我正在使用的课程：

package com.example.playerclient.blur;

import android.content.Context;
import android.graphics.Bitmap;
import android.support.v8.renderscript.*;

public class BlurBuilder {

    private static final float BITMAP_SCALE = 0.6f;


    public static Bitmap blur(Context context, Bitmap image, float blurRadius) {
        Bitmap outputBitmap = null;

        if (image != null) {

            if (blurRadius == 0) {
                return image;
            }

            if (blurRadius < 1) {
                blurRadius = 1;
            }

            if (blurRadius > 25) {
                blurRadius = 25;
            }

            int width = Math.round(image.getWidth() * BITMAP_SCALE);
            int height = Math.round(image.getHeight() * BITMAP_SCALE);

            Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
            outputBitmap = Bitmap.createBitmap(inputBitmap);

            RenderScript rs = RenderScript.create(context);
            ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
            Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
            Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
            theIntrinsic.setRadius(blurRadius);
            theIntrinsic.setInput(tmpIn);
            theIntrinsic.forEach(tmpOut);
            tmpOut.copyTo(outputBitmap);
        }

        return outputBitmap;
    }
}

在这里我调用该方法：

public class MusicaActivity extends AppCompatActivity implements View.OnClickListener {
    // Others methods here.
    private void mostraDadosMusica() {
        Intent intent = getIntent();
        Musica musica = (Musica)intent.getSerializableExtra(MainActivity.VISUALIZA_PLAYER);

        // Where i'm having problems.
        Bitmap originalBmp = BitmapFactory.decodeResource(getResources(), musica.getAlbum().getIdCapa());
        Bitmap resultBmp   = BlurBuilder.blur(this, originalBmp, 15f);
        backgroundImageView.setImageBitmap(resultBmp);
    }
}

这里是异常消息：

11-04 22：05：07.453 18928-18928 / com.example.playerclient E / Android运行时：致命异常：主要 java.lang.OutOfMemoryError 在android.graphics.BitmapFactory.nativeDecodeAsset（本地方法）在android.graphics.BitmapFactory.decodeStream（BitmapFactory.java:636）在android.graphics.BitmapFactory.decodeResourceStream（BitmapFactory.java:484）在android.graphics.BitmapFactory.decodeResource（BitmapFactory.java:512）在android.graphics.BitmapFactory.decodeResource（BitmapFactory.java:542）在com.example.playerclient.activity.MusicaActivity.mostraDadosMusica（MusicaActivity.java:48）在com.example.playerclient.activity.MusicaActivity.onCreate（MusicaActivity.java:87）在android.app.Activity.performCreate（Activity.java:5188）在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1094）在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2074）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2135）在android.app.ActivityThread.access $ 700（ActivityThread.java:140）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1237）在android.os.Handler.dispatchMessage（Handler.java:99）在android.os.Looper.loop（Looper.java:137）在android.app.ActivityThread.main（ActivityThread.java:4921）在java.lang.reflect.Method.invokeNative（本机方法）在java.lang.reflect.Method.invoke（Method.java:511）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:1038）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:805）在dalvik.system.NativeStart.main（本机方法）

尝试模糊图像时出现OutOfMemoryError异常

0 个答案: