私はこのメモリ不足のエラーを抱えています。フラグメントやイメージビューではなくアクティビティを使用するビューページャーを持っていたので、このエラーが発生したときにフラグメントに変更しました...しかし、このエラーは、多くの解決策を試してもどれも機能しなかったことを示し続けます...
私のコード:
public class ScreenSlidePageFragment extends Fragment {
public static final String ARG_PAGE = "page";
private int mPageNumber;
private int[] pics = {R.drawable.intro1, R.drawable.intro2,R.drawable.intro3,R.drawable.intro4,R.drawable.intro5,R.drawable.intro6,R.drawable.intro7,R.drawable.intro8,
R.drawable.intro9,R.drawable.intro10,R.drawable.intro11,R.drawable.intro12,R.drawable.intro13,R.drawable.intro14,R.drawable.intro15,R.drawable.intro16,R.drawable.intro17,R.drawable.intro18,
R.drawable.intro19,R.drawable.intro20,R.drawable.intro21,R.drawable.intro22,R.drawable.intro23,R.drawable.intro24,R.drawable.intro25,R.drawable.intro26,R.drawable.intro27,R.drawable.intro28,R.drawable.intro29,R.drawable.intro30,
R.drawable.intro31,R.drawable.intro32,R.drawable.intro33,R.drawable.intro34,R.drawable.intro35,R.drawable.intro36,R.drawable.intro37,R.drawable.intro38,R.drawable.intro39,R.drawable.intro40,R.drawable.intro41,R.drawable.intro42,
R.drawable.intro43,R.drawable.intro44,R.drawable.intro45,R.drawable.intro46,R.drawable.intro47,R.drawable.intro48,R.drawable.intro49,R.drawable.intro50,R.drawable.intro51,R.drawable.intro52,R.drawable.intro53,R.drawable.intro54,
R.drawable.intro55,R.drawable.intro56,R.drawable.intro57,R.drawable.intro58,R.drawable.intro59,R.drawable.intro60,R.drawable.intro61,R.drawable.intro62,R.drawable.intro63,R.drawable.intro64,R.drawable.intro65,R.drawable.intro66,
R.drawable.intro67,R.drawable.intro68,R.drawable.intro69,R.drawable.intro70,R.drawable.intro71,R.drawable.intro72,R.drawable.intro73};
int count=72;//it's the number of the images-1;
public static ScreenSlidePageFragment create(int pageNumber) {
ScreenSlidePageFragment fragment = new ScreenSlidePageFragment();
Bundle args = new Bundle();
args.putInt(ARG_PAGE, pageNumber);
fragment.setArguments(args);
return fragment;
}
public ScreenSlidePageFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPageNumber = getArguments().getInt(ARG_PAGE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
ViewGroup rootView = (ViewGroup) inflater
.inflate(R.layout.image_view_layout, container, false);
ImageView img=(ImageView) rootView.findViewById(R.id.img_pager);
img.setImageResource(pics[count-mPageNumber]);
return rootView;
}
public int getPageNumber() {
return mPageNumber;
}
}
アクティビティは次のとおりです。
public class Introduction_Activity extends FragmentActivity {
private static final int NUM_PAGES = 73;
private ViewPager mPager;
private PagerAdapter mPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_introduction);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.imgs_viewpager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
mPager.setCurrentItem(NUM_PAGES-1);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.introduction_, menu);
return true;
}
static class ViewHolder {
ImageView img_view;
}
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
public ScreenSlidePagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
return ScreenSlidePageFragment.create(position);
}
@Override
public int getCount() {
return NUM_PAGES;
}
}
}
それは私のlogcatです：
10-01 14:44:49.224: E/AndroidRuntime(4770): FATAL EXCEPTION: main
10-01 14:44:49.224: E/AndroidRuntime(4770): java.lang.OutOfMemoryError
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.Bitmap.nativeCreate(Native Method)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.Bitmap.createBitmap(Bitmap.java:605)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.Bitmap.createBitmap(Bitmap.java:551)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:437)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.BitmapFactory.finishDecode(BitmapFactory.java:618)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:593)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:445)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:775)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.content.res.Resources.loadDrawable(Resources.java:1968)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.content.res.Resources.getDrawable(Resources.java:677)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.widget.ImageView.resolveUri(ImageView.java:542)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.widget.ImageView.setImageResource(ImageView.java:315)
10-01 14:44:49.224: E/AndroidRuntime(4770): at packagename.ScreenSlidePageFragment.onCreateView(ScreenSlidePageFragment.java:60)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.view.ViewPager.populate(ViewPager.java:1064)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.view.ViewPager.populate(ViewPager.java:911)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.support.v4.view.ViewPager$3.run(ViewPager.java:242)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.os.Handler.handleCallback(Handler.java:605)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.os.Handler.dispatchMessage(Handler.java:92)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.os.Looper.loop(Looper.java:137)
10-01 14:44:49.224: E/AndroidRuntime(4770): at android.app.ActivityThread.main(ActivityThread.java:4514)
10-01 14:44:49.224: E/AndroidRuntime(4770): at java.lang.reflect.Method.invokeNative(Native Method)
10-01 14:44:49.224: E/AndroidRuntime(4770): at java.lang.reflect.Method.invoke(Method.java:511)
10-01 14:44:49.224: E/AndroidRuntime(4770): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
10-01 14:44:49.224: E/AndroidRuntime(4770): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
10-01 14:44:49.224: E/AndroidRuntime(4770): at dalvik.system.NativeStart.main(Native Method)
私も追加しました：
@Override
public void onDetach(){
super.onDetach();
//img.setImageResource(0);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.remove(this).commit();
Log.d("was detached","yes");
}
私のフラグメントに、まだエラーが発生しています。
編集 コードで画像のサイズを変更し、不要なビットマップをリサイクルしたところ、このエラーが再び発生しました。
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
public class ScreenSlidePageFragment extends Fragment {
/**
* The argument key for the page number this fragment represents.
*/
public static final String ARG_PAGE = "page";
/**
* The fragment's page number, which is set to the argument value for {@link #ARG_PAGE}.
*/
ImageView img;
int height;
int width;
private int mPageNumber;
private int[] pics = {R.drawable.intro1, R.drawable.intro2,R.drawable.intro3,R.drawable.intro4,R.drawable.intro5,R.drawable.intro6,R.drawable.intro7,R.drawable.intro8,
R.drawable.intro9,R.drawable.intro10,R.drawable.intro11,R.drawable.intro12,R.drawable.intro13,R.drawable.intro14,R.drawable.intro15,R.drawable.intro16,R.drawable.intro17,R.drawable.intro18,
R.drawable.intro19,R.drawable.intro20,R.drawable.intro21,R.drawable.intro22,R.drawable.intro23,R.drawable.intro24,R.drawable.intro25,R.drawable.intro26,R.drawable.intro27,R.drawable.intro28,R.drawable.intro29,R.drawable.intro30,
R.drawable.intro31,R.drawable.intro32,R.drawable.intro33,R.drawable.intro34,R.drawable.intro35,R.drawable.intro36,R.drawable.intro37,R.drawable.intro38,R.drawable.intro39,R.drawable.intro40,R.drawable.intro41,R.drawable.intro42,
R.drawable.intro43,R.drawable.intro44,R.drawable.intro45,R.drawable.intro46,R.drawable.intro47,R.drawable.intro48,R.drawable.intro49,R.drawable.intro50,R.drawable.intro51,R.drawable.intro52,R.drawable.intro53,R.drawable.intro54,
R.drawable.intro55,R.drawable.intro56,R.drawable.intro57,R.drawable.intro58,R.drawable.intro59,R.drawable.intro60,R.drawable.intro61,R.drawable.intro62,R.drawable.intro63,R.drawable.intro64,R.drawable.intro65,R.drawable.intro66,
R.drawable.intro67,R.drawable.intro68,R.drawable.intro69,R.drawable.intro70,R.drawable.intro71,R.drawable.intro72,R.drawable.intro73};
int count=72;//it's the number of the images-1;
/**
* Factory method for this fragment class. Constructs a new fragment for the given page number.
*/
public static ScreenSlidePageFragment create(int pageNumber) {
ScreenSlidePageFragment fragment = new ScreenSlidePageFragment();
Bundle args = new Bundle();
args.putInt(ARG_PAGE, pageNumber);
fragment.setArguments(args);
return fragment;
}
public ScreenSlidePageFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
DisplayMetrics displaymetrics = new DisplayMetrics();
getActivity().getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
height = displaymetrics.heightPixels;
width = displaymetrics.widthPixels;
Log.d("width", ""+width);
Log.d("height", ""+height);
mPageNumber = getArguments().getInt(ARG_PAGE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Resources res = getResources() ;
ViewGroup rootView = (ViewGroup) inflater
.inflate(R.layout.image_view_layout, container, false);
Bitmap btm=decodeSampledBitmapFromResource(res,pics[count-mPageNumber],600,600);
img=(ImageView) rootView.findViewById(R.id.img_pager);
img.setImageBitmap(btm);
return rootView;
}
public static Bitmap decodeSampledBitmapFromResource(Resources res, int resId,
int reqWidth, int reqHeight) {
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(res, resId, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeResource(res, resId, options);
}
public static int calculateInSampleSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
// Calculate ratios of height and width to requested height and width
final int heightRatio = Math.round((float) height / (float) reqHeight);
final int widthRatio = Math.round((float) width / (float) reqWidth);
// Choose the smallest ratio as inSampleSize value, this will guarantee
// a final image with both dimensions larger than or equal to the
// requested height and width.
inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
}
return inSampleSize;
}
@Override
public void onDetach(){
super.onDetach();
Bitmap bitmap = ((BitmapDrawable)img.getDrawable()).getBitmap();
bitmap.recycle();
//FragmentManager fragmentManager = getFragmentManager();
//FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
//fragmentTransaction.remove(this).commit();
}
/**
* Returns the page number represented by this fragment object.
*/
public int getPageNumber() {
return mPageNumber;
}
}
以前よりスワイプできるようになりましたが、まだ問題が残っています... アプリのメモリの空き容量を表示する方法はありますか? そして、誰かが解決策を持っていますか...