Android Textview显示带有许多图像的html会导致内存不足异常

我正在使用带有ImageGetter的Textview来显示带图像的html . 问题是如果因为位图占用太多内存而有很多图像我将面临内存问题 . 我该怎么做才能防止这种情况发生？

这是我的ImageGetter代码：

private class ImageGetter implements Html.ImageGetter {

    @Override
    public Drawable getDrawable(String source) {
        LevelListDrawable d = new LevelListDrawable();
        Drawable empty = getResources().getDrawable(R.drawable.indicator_loading);
        d.addLevel(0, 0, empty);
        d.setBounds((size.x - size.x/5) / 2, 0, size.x/5, size.x/5);
        new LoadImage().execute(source, d);

        return d;
    }
};

class LoadImage extends AsyncTask<Object, Void, Bitmap> {

    private LevelListDrawable mDrawable;

    @Override
    protected Bitmap doInBackground(Object... params) {
        String source = (String) params[0];
        mDrawable = (LevelListDrawable) params[1];
        try {
            return picasso.load(Uri.parse(source)).get();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPostExecute(Bitmap bitmap) {
        if (bitmap != null) {
            if (bitmap.getWidth() < 50) {
                return;
            }
            BitmapDrawable d = new BitmapDrawable(resources, bitmap);
            //
            mDrawable.addLevel(1, 1, d);
            int width = size.x * 90 / 100;
            int height = bitmap.getHeight() * width / bitmap.getWidth();
            mDrawable.setBounds((size.x - width) / 2, 0, width, height);
            mDrawable.setLevel(1);

            CharSequence t = textView.getText();
            textView.setText(t);
        }
    }
}

堆栈跟踪 ：

致命异常：AsyncTask＃17 java.lang.RuntimeException：在android.os.AsyncTask $ 3.done（AsyncTask.java:200）上执行doInBackground（）时发生错误java.util.concurrent.FutureTask $ Sync.innerSetException（ FutureTask.java:274）java.util.concurrent.FutureTask的java.util.concurrent.FutureTask.setException（FutureTask.java:125）java.util.concurrent.FutureTask的$ Sync.innerRun（FutureTask.java：308） .run（FutureTask.java:138）java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1088）java.lang上的java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:581） . Thread.run（Thread.java:1019）引起：java.lang.OutOfMemoryError：位图大小超过android.graphics.BitmapFactory.nativeDecodeStream（Native Method）的android预算，位于android.graphics.BitmapFactory.decodeStream（BitmapFactory.java:470） ）android.graphics.BitmapFactory.decodeResourceStream（BitmapFactory.java:336）在android.graphics.drawable.Drawable.createFromResourceStream（Dr awable.java:697）在com.tornado的com.tornado.docbao24h.ui.ViewArcFragment $ URLImageParser $ ImageGetterAsyncTask.fetchDrawable（ViewArcFragment.java:436）的android.graphics.drawable.Drawable.createFromStream（Drawable.java:657） .docbao24h.ui.ViewArcFragment $ URLImageParser $ ImageGetterAsyncTask.doInBackground（ViewArcFragment.java:411）at com.tornado.docbao24h.ui.ViewArcFragment $ URLImageParser $ ImageGetterAsyncTask.doInBackground（ViewArcFragment.java:401）at android.os.AsyncTask $ 2 . 调用（AsyncTask.java:185）java.util.concurrent.FutureTask $ Sync.innerRun（FutureTask.java:306）at java.util.concurrent.FutureTask.run（FutureTask.java:138）at java.util.concurrent .ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1088）at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:581）at java.lang.Thread.run（Thread.java:1019)09-03 04： 15：11.868 1729-1794 / com.tornado.docbao24h E / AndroidRuntime：FATAL EXCEPTION：AsyncTask＃18 java.lang.RuntimeException：执行时发生错误来自java.util.concurrent.FutureTask的android.os.AsyncTask $ 3.done（AsyncTask.java:200）中的doInBackground（）$ java.util.concurrent.FutureTask.setException中的$ Sync.innerSetException（FutureTask.java:274）（ FutureTask.java:125）java.util.concurrent.TutureTask $ Sync.innerRun（FutureTask.java:308）at java.util.concurrent.FutureTask.run（FutureTask.java:138）at java.util.concurrent.ThreadPoolExecutor .runWorker（ThreadPoolExecutor.java:1088）at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:581）at java.lang.Thread.run（Thread.java:1019）引起：java.lang . OutOfMemoryError：位图大小超过android.graphics.BitmapFactory.nativeDecodeStream（Native Method）的android预算，位于android.graphics.BitmapFactory.decodeResourceStream（BitmapFactory.java:336）的android.graphics.BitmapFactory.decodeStream（BitmapFactory.java:470） android.graphics.drawable.Drawable.createFromResourceStream（Drawable.java:697）在android.graphics.drawable.Drawable.createFromStream（Drawable.java:657） ）com.tornado.docbao24h.ui.ViewArcFragment $ URLImageParser $ ImageGetterAsyncTask.fetchDrawable（ViewArcFragment.java:436）at com.tornado.docbao24h.ui.ViewArcFragment $ URLImageParser $ ImageGetterAsyncTask.doInBackground（ViewArcFragment.java:411）at com . tornado.docbao24h.ui.ViewArcFragment $ URLImageParser $ ImageGetterAsyncTask.doInBackground（ViewArcFragment.java:401）at android.os.AsyncTask $ 2.call（AsyncTask.java:185）at java.util.concurrent.FutureTask $ Sync.innerRun（FutureTask .java：306）java.util.concurrent.FutureTask.run（FutureTask.java:138）java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1088）java.util.concurrent.ThreadPoolExecutor $ Worker . 在java.lang.Thread.run上运行（ThreadPoolExecutor.java:581）（Thread.java:1019）