我做了ViewPager
來顯示圖像。當我推進一些頁面時,我得到一個java.lang.OutOfMemoryError: bitmap size exceeds VM budget
錯誤。ViewPager與ImageView給「java.lang.OutOfMemoryError:位圖大小超過VM預算」
還有關於這個問題的更多問題,但我沒有找到解決方案(BitMap.Recycle
,System.gc()
等)。如果您有任何建議或解決方案,請告訴我!
PNG的是628KB,478KB,587KB,132KB,139KB,149KB,585KB(崩潰)。
如果你有其他的解決方案(滾動圖像像頁面)讓我知道!
我的代碼:
package nl.ipear.vngmagazine;
import android.content.Context;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.os.Parcelable;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
public class ShowMagazine2 extends FragmentActivity {
private ViewPager myPager;
private MyPagerAdapter myPagerAdapter;
private static int NUM_PAGES = 15;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.showmagazine);
myPager = (ViewPager)findViewById(R.id.viewpager1);
myPagerAdapter = new MyPagerAdapter();
myPager.setAdapter(myPagerAdapter);
return;
}
private class MyPagerAdapter extends PagerAdapter{
@Override
public int getCount() {
return NUM_PAGES;
}
@Override
public Object instantiateItem(View collection, int position) {
String location = Environment.getExternalStorageDirectory() + "/MYData/" + "2012-02/";
// Inflate and create the view
LayoutInflater layoutInflater = (LayoutInflater) collection.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.magazinepageview, null);
ImageView imageView = (ImageView) view.findViewById(R.id.magazinePageImage);
String fileName = String.format("%s%s%02d%s", location, "2012-02_Page_", position + 1, ".png");
Log.v("PNG", fileName);
imageView.setImageBitmap(BitmapFactory.decodeFile(fileName));
((ViewPager) collection).addView(view,0);
return view;
}
@Override
public void destroyItem(View collection, int position, Object view) {
((ViewPager) collection).removeView((View) view);
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view==((View)object);
}
@Override
public void finishUpdate(View arg0) {}
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1) {}
@Override
public Parcelable saveState() {
return null;
}
@Override
public void startUpdate(View arg0) {}
}
}
位圖的大小(像素,不是KB)是多少?並在每個尺寸崩潰? (也有這個問題,但我需要更多的信息) – Bigflow 2012-03-19 15:16:04
感謝您的回覆,圖片是aprox 1240x1584。這些圖像是從PDF生成的,適用於手機和平板電腦! – Hans 2012-03-19 15:33:45
你嘗試了更小的圖像嗎?例如300 x 300.因爲可以以較小的塊「剪切」圖像,並對這些塊進行解碼,然後您可以將其顯示爲完整圖像。 – Bigflow 2012-03-20 07:20:01