Question

我正在尝试将图片上传到Firebase，但是当图片尺寸很大时会出现OOM错误。我试图使用一些库，比如滑行，但我没有减小尺寸。

以下是将URI更改为位图的代码：

public byte[] getBytesFromUri(Uri uri, int quality) {
    ByteArrayOutputStream stream=new ByteArrayOutputStream();
    Bitmap bitmap=null;
    try {   
        bitmap=MediaStore.Images.Media.getBitmap(this.getContentResolver(),uri);
    } catch (IOException e) {
        e.printStackTrace();
    }
    bitmap.compress(Bitmap.CompressFormat.JPEG, quality, stream);
    return stream.toByteArray();
}

这是上传到firebase部分：

StorageReference file2path=mStorage.child("products_images").child(mAuth.getCurrentUser().getUid()).child(nouveau_produit.getKey()).child("image_2");
file2path.putBytes(getBytesFromUri(resultUri2, 100)).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
    @Override
    public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
        Uri second_Dwn_Url=taskSnapshot.getDownloadUrl();
        image2=second_Dwn_Url.toString().trim();

        //images upload
        nouveau_produit.child("image_2").setValue(image2);
        nouveau_produit_category.child("image_2").setValue(image2);
    }
}).addOnFailureListener(new OnFailureListener() {
    @Override
    public void onFailure(@NonNull Exception e) {
        Toast.makeText(UploadActivity.this,"uploading of second image failed",Toast.LENGTH_LONG).show();
    }
});

我上传的图片似乎很大。这是应用程序崩溃时我遇到的错误：

FATAL EXCEPTION: main
Process: tk.a45developer.www.kukaguriro, PID: 13149
java.lang.OutOfMemoryError
    at java.io.ByteArrayOutputStream.toByteArray(ByteArrayOutputStream.java:122)
    at tk.a45developer.www.kukaguriro.UploadActivity.getBytesFromUri(UploadActivity.java:1294)
    at tk.a45developer.www.kukaguriro.UploadActivity$10.onClick(UploadActivity.java:867)
    at android.view.View.performClick(View.java:4508)
    at android.view.View$PerformClick.run(View.java:18675)
    at android.os.Handler.handleCallback(Handler.java:733)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5590)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1280)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1096)
    at dalvik.system.NativeStart.main(Native Method)

Answer 1

谢谢你们的评论我刚刚找到了一种方法来使用SiliCompressor库这是我的代码，我使用sillycompressor库sillycompressor github link

将uri更改为位图

public byte[] getBytesFromUri(Uri uri, int quality) {

    ByteArrayOutputStream stream=new ByteArrayOutputStream();
    Bitmap bitmap=null;
    try {
        bitmap = SiliCompressor.with(UploadActivity.this).getCompressBitmap(uri.toString());
    } catch (IOException e) {
        e.printStackTrace();
    }

    bitmap.compress(Bitmap.CompressFormat.JPEG, quality, stream);
    return stream.toByteArray();
}

android：减小大小后将图片上传到firebase以避免内存不足错误

1 个答案: