Matisse预览图片黑屏，Glide内存溢出
项目中要到图片、视频选择的功能，然后google了一下，找到Matisse，知乎的图片选择框架，用的人还挺多的，果断依赖gradle,然后开始我的踩坑之旅。 首先，框架本身的图片框架glide是v3版本的，然后我项目中的是目前最新的v4.7.1,然后需要重写它的图片加载.imageEngine(new GlideEngine())，因为低版本的一些api在高版本已经找不到了，这都是小问题。 public class GlideEngine implements ImageEngine{ @Override public void loadThumbnail(Context context, int resize, Drawable placeholder, ImageView imageView, Uri uri) { Glide.with(context) .asBitmap() // some .jpeg files are actually gif .load(uri) .apply(new RequestOptions() .override(resize, resize) .placeholder(placeholder) .centerCrop()) .into(imageView); } @Override public void loadGifThumbnail(Context context, int resize, Drawable placeholder, ImageView imageView, Uri uri) { Glide.with(context) .asBitmap() // some .jpeg files are actually gif .load(uri) .apply(new RequestOptions() .override(resize, resize) .placeholder(placeholder) .centerCrop()) .into(imageView); } @Override public void loadImage(Context context, int resizeX, int resizeY, ImageView imageView, Uri uri) { Glide.with(context) .load(uri) .apply(new RequestOptions() .override(resizeX, resizeY) .priority(Priority.HIGH) .fitCenter()) .into(imageView); } @Override public void loadGifImage(Context context, int resizeX, int resizeY, ImageView imageView, Uri uri) { Glide.with(context) .asGif() .load(uri) .apply(new RequestOptions() .override(resizeX, resizeY) .priority(Priority.HIGH) .fitCenter()) .into(imageView); } @Override public boolean supportAnimatedGif() { return true; } } 然后运行成功，如愿以偿的打开了相册，当然这都建立了你已经申请并获得了6.0以上的运行期权限，Matisse图片加载器修改后，预览图片直接黑屏： Glide: Root cause (1 of 5) java.lang.OutOfMemoryError: Failed to allocate a 19660812 byte allocation with 13530040 free bytes and 12MB until OOM Glide: Root cause (4 of 5) java.io.IOException: java.lang.RuntimeException: setDataSource failed: status = 0x80000000 然后我下载了一份github上的代码，发现了Demo和GitHub上示例代码的问题。 Matisse.from(SampleActivity.this) .choose(MimeType.ofAll(), false) .countable(true) .capture(true) .captureStrategy( new CaptureStrategy(true, "com.zhihu.matisse.sample.fileprovider")) .maxSelectable(9) .addFilter(new GifSizeFilter(320, 320, 5 * Filter.K * Filter.K)) .gridExpectedSize( getResources().getDimensionPixelSize(R.dimen.grid_expected_size)) .restrictOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT) .thumbnailScale(0.85f) // .imageEngine(new GlideEngine()) // for glide-V3 .imageEngine(new Glide4Engine()) // for glide-V4 .setOnSelectedListener(new OnSelectedListener() { @Override public void onSelected( @NonNull List<Uri> uriList, @NonNull List<String> pathList) { // DO SOMETHING IMMEDIATELY HERE Log.e("onSelected", "onSelected: pathList=" + pathList); } }) .originalEnable(true) .maxOriginalSize(10) .setOnCheckedListener(new OnCheckedListener() { @Override public void onCheck(boolean isChecked) { // DO SOMETHING IMMEDIATELY HERE Log.e("isChecked", "onCheck: isChecked=" + isChecked); } }) .forResult(REQUEST_CODE_CHOOSE); 在.addFilter(new GifSizeFilter())中GifSizeFilter这个类居然不是public的，在按照github上的示例代码时这行代码报错了，当时我以为是不太重要的代码，然后去掉了。 /* * Copyright 2017 Zhihu Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.zhihu.matisse.sample; import android.content.Context; import android.graphics.Point; import com.zhihu.matisse.MimeType; import com.zhihu.matisse.filter.Filter; import com.zhihu.matisse.internal.entity.IncapableCause; import com.zhihu.matisse.internal.entity.Item; import com.zhihu.matisse.internal.utils.PhotoMetadataUtils; import java.util.HashSet; import java.util.Set; class GifSizeFilter extends Filter { private int mMinWidth; private int mMinHeight; private int mMaxSize; GifSizeFilter(int minWidth, int minHeight, int maxSizeInBytes) { mMinWidth = minWidth; mMinHeight = minHeight; mMaxSize = maxSizeInBytes; } @Override public Set<MimeType> constraintTypes() { return new HashSet<MimeType>() {{ add(MimeType.GIF); }}; } @Override public IncapableCause filter(Context context, Item item) { if (!needFiltering(context, item)) return null; Point size = PhotoMetadataUtils.getBitmapBound(context.getContentResolver(), item.getContentUri()); if (size.x < mMinWidth || size.y < mMinHeight || item.size > mMaxSize) { return new IncapableCause(IncapableCause.DIALOG, context.getString(R.string.error_gif, mMinWidth, String.valueOf(PhotoMetadataUtils.getSizeInMB(mMaxSize)))); } return null; } } 最后的解决办法是复制了GifSizeFilter 并把它申明为public，问题解决。
