Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/java/388.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/3/android/213.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Java 从缓存还原图片时出现android OutOfMemoryError_Java_Android_Android Fragments_Android Asynctask_Out Of Memory - Fatal编程技术网

Java 从缓存还原图片时出现android OutOfMemoryError

Java 从缓存还原图片时出现android OutOfMemoryError,java,android,android-fragments,android-asynctask,out-of-memory,Java,Android,Android Fragments,Android Asynctask,Out Of Memory,我的应用程序有一个GridView,其中每个项目都是ImageView。我编写了自定义适配器来将图像设置到ImageView中。使用AsyncTask异步设置图像 我的任务是从缓存还原映像 @Override protected Bitmap doInBackground(Void... params) { return BitmapFactory.decodeFile(file.getAbsolutePath()); } @Override protected void onPostE

我的应用程序有一个GridView,其中每个项目都是ImageView。我编写了自定义适配器来将图像设置到ImageView中。使用AsyncTask异步设置图像

我的任务是从缓存还原映像

@Override
protected Bitmap doInBackground(Void... params) {
   return BitmapFactory.decodeFile(file.getAbsolutePath());
}

@Override
protected void onPostExecute(Bitmap bitmap) {
    if (bitmap != null) {
        imageView.setImageBitmap(bitmap);
    } else {
        // load image from db
    }
}
放置在片段上的GridView。在替换了多个片段后,我在
BitmapFactory.decodeFile(file.getAbsolutePath())行中出现了OutOfMemoryError

请帮我解决这个问题。
谢谢大家!

不能将位图直接加载到内存中。定义生成的位图的大小,并使用此处描述的技术加载位图的缩放版本:

首先,您必须在清单中声明较大的堆大小。并根据代码使用位图循环。 对于manifest.xml android:largeHeap=“true”


希望它对你有用。

android:largeHeap=true
应该尽量避免,而且必须是最后的手段。你使用过位图回收吗?我使用过,但我的应用程序崩溃了,并显示消息“无法绘制回收的位图”
E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #2
    java.lang.RuntimeException: An error occured while executing doInBackground()
            at android.os.AsyncTask$3.done(AsyncTask.java:299)
            at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
            at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
            at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
            at java.util.concurrent.FutureTask.run(FutureTask.java:137)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
            at java.lang.Thread.run(Thread.java:864)
     Caused by: java.lang.OutOfMemoryError: (Heap Size=131079KB, Allocated=126797KB)
            at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
            at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:658)
            at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:347)
            at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:430)
            at com.ThreeBoots.utils.ImageProcessor$2.doInBackground(ImageProcessor.java:248)
            at com.ThreeBoots.utils.ImageProcessor$2.doInBackground(ImageProcessor.java:245)
            at android.os.AsyncTask$2.call(AsyncTask.java:287)
            at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
            at java.util.concurrent.FutureTask.run(FutureTask.java:137)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
            at java.lang.Thread.run(Thread.java:864)
if (bm != null) {

    bm.recycle();
    bm = null;

}