我正在创建一个简单的应用程序,它具有交错的布局,交错布局使用Volley库在PHP脚本的帮助下从服务器加载数据当我点击RecyclerVIEw中的项目时,我的应用程序包含以下错误日志.
此外,当我查看内存日志时,应用程序在将数据从服务器加载到recyclerVIEw时使用了大量内存
记录//在应用程序启动时
I/Choreographer: Skipped 189 frames! The application may be doing too much work on its main thread.I/art: Background partial concurrent mark sweep GC freed 3797(174KB) AllocSpace objects, 1(36KB) LOS objects, 6% free, 56MB/60MB, paused 19.976ms total 90.718ms错误记录//单击RecyclerVIEw中的项目后
I/art: Alloc sticky concurrent mark sweep GC freed 10628(425KB) AllocSpace objects, 5(562KB) LOS objects, 2% free, 59MB/60MB, paused 476us total 7.071msI/art: Alloc partial concurrent mark sweep GC freed 928(67KB) AllocSpace objects, 1(16KB) LOS objects, 6% free, 58MB/62MB, paused 647us total 37.510msI/art: Alloc concurrent mark sweep GC freed 241(23KB) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 574us total 49.041msI/art: Forcing collection of SoftReferences for 21MB allocationI/art: Alloc concurrent mark sweep GC freed 13(472B) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 429us total 16.959msE/art: Throwing OutOfMemoryError "Failed to allocate a 22400012 byte allocation with 4194304 free bytes and 5MB until OOM"I/art: Alloc sticky concurrent mark sweep GC freed 5(608B) AllocSpace objects, 0(0B) LOS objects, 3% free, 58MB/60MB, paused 509us total 8.143msI/art: Alloc partial concurrent mark sweep GC freed 17(480B) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 5.517ms total 17.409msI/art: Alloc concurrent mark sweep GC freed 14(448B) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 1.077ms total 107.298msI/art: Forcing collection of SoftReferences for 21MB allocationI/art: Alloc concurrent mark sweep GC freed 3(96B) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 620us total 36.488msE/art: Throwing OutOfMemoryError "Failed to allocate a 22400012 byte allocation with 4194304 free bytes and 5MB until OOM"D/skia: --- allocation Failed for scaled bitmapD/AndroIDRuntime: Shutting down VMFATAL EXCEPTION: mainProcess: com.trueblueoperator.swachhapp, PID: 25499 java.lang.OutOfMemoryError: Failed to allocate a 22400012 byte allocation with 4194304 free bytes and 5MB until OOM at dalvik.system.vmruntime.newNonMovableArray(Native Method) at androID.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at androID.graphics.BitmapFactory.decodeStream(BitmapFactory.java:609) at androID.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444) at androID.graphics.drawable.Drawable.createFromresourceStream(Drawable.java:988) at androID.content.res.Resources.loadDrawableForcookie(Resources.java:2474) at androID.content.res.Resources.loadDrawable(Resources.java:2381) at androID.content.res.TypedArray.getDrawable(TypedArray.java:749) at androID.Widget.ImageVIEw.<init>(ImageVIEw.java:146) at androID.Widget.ImageVIEw.<init>(ImageVIEw.java:135) at androID.support.v7.Widget.AppCompatimageVIEw.<init>(AppCompatimageVIEw.java:58) at androID.support.v7.Widget.AppCompatimageVIEw.<init>(AppCompatimageVIEw.java:54) at androID.support.v7.app.AppCompatVIEwInflater.createVIEw(AppCompatVIEwInflater.java:95) at androID.support.v7.app.AppCompatDelegateImplV7.createVIEw(AppCompatDelegateImplV7.java:938) at androID.support.v7.app.AppCompatDelegateImplV7.onCreateVIEw(AppCompatDelegateImplV7.java:992) at androID.support.v4.vIEw.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateVIEw(LayoutInflaterCompatHC.java:44) at androID.vIEw.LayoutInflater.createVIEwFromTag(LayoutInflater.java:725) at androID.vIEw.LayoutInflater.rInflate(LayoutInflater.java:806) at androID.vIEw.LayoutInflater.rInflate(LayoutInflater.java:809) at androID.vIEw.LayoutInflater.rInflate(LayoutInflater.java:809) at androID.vIEw.LayoutInflater.inflate(LayoutInflater.java:504) at androID.vIEw.LayoutInflater.inflate(LayoutInflater.java:414) at androID.vIEw.LayoutInflater.inflate(LayoutInflater.java:365) at androID.support.v7.app.AppCompatDelegateImplV7.setContentVIEw(AppCompatDelegateImplV7.java:256) at androID.support.v7.app.AppCompatActivity.setContentVIEw(AppCompatActivity.java:109) at com.trueblueoperator.swachhapp.StoryDetailFragment.onCreate(StoryDetailFragment.java:45) at androID.app.Activity.performCreate(Activity.java:5990) at androID.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) at androID.app.ActivityThread.performlaunchActivity(ActivityThread.java:2278) at androID.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at androID.app.ActivityThread.access0(ActivityThread.java:151) at androID.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at androID.os.Handler.dispatchMessage(Handler.java:102) at androID.os.Looper.loop(Looper.java:135) at androID.app.ActivityThread.main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.androID.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) at com.androID.internal.os.ZygoteInit.main(ZygoteInit.java:698)这是我的Code for Fragment类,其中包含Recycler VIEw
FragmetnAllStory.java文件
public class FragmentAllStory extends Fragment implements SwipeRefreshLayout.OnRefreshListener{// implements RecyclerVIEw.OnScrollchangelistener {//Creating a List of superheroesprivate List<AllStoryData> allStoryDataList;//Volley Request Queueprivate RequestQueue requestQueue;private Progressbar progressbar;//The request counter to send ?page=1, ?page=2 requestsprivate int requestCount = 1;private RecyclerVIEw recyclerVIEw;private SwipeRefreshLayout swipeRefreshLayout;private RecyclerVIEw.Adapter adapter;@OverrIDepublic voID onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true);}@Nullable@OverrIDepublic VIEw onCreateVIEw(LayoutInflater inflater, VIEwGroup container, Bundle savedInstanceState) { requestCount = 1; VIEw v = inflater.inflate(R.layout.fragment_all_story, container, false); progressbar = (Progressbar) v.findVIEwByID(R.ID.progress_bar); swipeRefreshLayout = (SwipeRefreshLayout) v.findVIEwByID(R.ID.swipeRefreshLayout); swipeRefreshLayout.setonRefreshListener(this); recyclerVIEw = (RecyclerVIEw) v.findVIEwByID(R.ID.recycler_vIEw2);//new RecyclerVIEw(getActivity()); if(getResources().getConfiguration().orIEntation == Configuration.ORIENTATION_PORTRAIT) { recyclerVIEw.setLayoutManager(new StaggeredGrIDLayoutManager(2, 1)); } else { recyclerVIEw.setLayoutManager(new StaggeredGrIDLayoutManager(3, 1)); } allStoryDataList = new ArrayList<>(); requestQueue = Volley.newRequestQueue(getContext()); //getData(); recyclerVIEw.addOnScrollListener(new OnScrollListener() { @OverrIDe public voID onScrollStateChanged(RecyclerVIEw recyclerVIEw, int newState) { super.onScrollStateChanged(recyclerVIEw, newState); } @OverrIDe public voID onScrolled(RecyclerVIEw recyclerVIEw, int dx, int dy) { super.onScrolled(recyclerVIEw, dx, dy); if(isLastItemdisplaying(recyclerVIEw)) { getData(); } } }); adapter = new AllStoryAdapter(allStoryDataList, getActivity()); recyclerVIEw.setAdapter(adapter); return v;}//Request to get Json from server we are passing an integer here//This integer will used to specify the page number for the request ?page = requestcount//This method would return a JsonArrayRequest that will be added to the request queue private JsonArrayRequest getDataFromServer(int requestCount) { //displaying Progressbar progressbar.setVisibility(VIEw.VISIBLE); //JsonArrayRequest of volley JsonArrayRequest JsonArrayRequest = new JsonArrayRequest(Config.DATA_URL + String.valueOf(requestCount), new Response.Listener<JsONArray>() { @OverrIDe public voID onResponse(JsONArray response) { //Calling method parseData to parse the Json response parseData(response); //HIDing the progressbar progressbar.setVisibility(VIEw.GONE); } }, new Response.ErrorListener() { @OverrIDe public voID one rrorResponse(VolleyError error) { progressbar.setVisibility(VIEw.GONE); //If an error occurs that means end of the List has reached Toast.makeText(getContext(), "No More Items Available", Toast.LENGTH_SHORT).show(); } }); //Returning the request return JsonArrayRequest;}@OverrIDepublic voID onResume() { super.onResume(); requestCount =1; allStoryDataList.clear(); getData();}//This method will get data from the web APIprivate voID getData() { //Adding the method to the queue by calling the method getDataFromServer requestQueue.add(getDataFromServer(requestCount)); //Incrementing the request counter requestCount++; swipeRefreshLayout.setRefreshing(false);}//This method will parse Json dataprivate voID parseData(JsONArray array) { for (int i = 0; i < array.length(); i++) { //Creating the superhero object AllStoryData allStoryData = new AllStoryData(); JsONObject Json = null; try { //Getting Json Json = array.getJsONObject(i); //Adding data to the superhero object allStoryData.setimageUrl(Json.getString(Config.TAG_IMAGE_URL)); allStoryData.setname(Json.getString(Config.TAG_name)); allStoryData.setPublisher(Json.getString(Config.TAG_PUBliSHER)); } catch (JsONException e) { e.printstacktrace(); } //Adding the superhero object to the List allStoryDataList.add(allStoryData); Log.d("ListSuper", "" + allStoryDataList); } //Notifying the adapter that data has been added or changed adapter.notifyDataSetChanged();}//This method would check that the recyclervIEw scroll has reached the bottom or notprivate boolean isLastItemdisplaying(RecyclerVIEw recyclerVIEw) { int[] info = new int[3]; if (recyclerVIEw.getAdapter().getItemCount() != 0) { ((StaggeredGrIDLayoutManager) recyclerVIEw.getLayoutManager()).findLastCompletelyVisibleItempositions(info); Log.d("info", "" + info[0] + " " + info[1]); if (info[0] == recyclerVIEw.getAdapter().getItemCount() - 1 || info[1] == recyclerVIEw.getAdapter().getItemCount() - 1 || info[2] == recyclerVIEw.getAdapter().getItemCount() - 1) return true; } return false;}@OverrIDepublic voID onRefresh() { requestCount =1; allStoryDataList.clear(); getData();}}StoryDetailFragment.java文件
public class StoryDetailFragment extends AppCompatActivity implements VIEw.OnClickListener, AppbarLayout.OnOffsetChangedListener {TextVIEw textVIEw;TextVIEw like;ImageVIEw imageVIEw;String requestString;RequestParams params = new RequestParams();@OverrIDepublic voID onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentVIEw(R.layout.fragment_story_detail); // error line 45 // Intent Message sent from broadcast Receiver requestString = getIntent().getStringExtra("heading"); Toolbar toolbar = (Toolbar) findVIEwByID(R.ID.toolbar); setSupportActionbar(toolbar); Actionbar actionbar = getSupportActionbar(); actionbar.setdisplayHomeAsUpEnabled(true); imageVIEw = (ImageVIEw) findVIEwByID(R.ID.story_image); like = (TextVIEw) findVIEwByID(R.ID.likes); if (requestString != null) { textVIEw = (TextVIEw) findVIEwByID(R.ID.story_detail_message); textVIEw.setText(requestString); } AppbarLayout appbarLayout = (AppbarLayout) findVIEwByID(R.ID.app_bar); appbarLayout.addOnOffsetChangedListener(this); floatingActionbutton fab1 = (floatingActionbutton) findVIEwByID(R.ID.fab1); floatingActionbutton fab2 = (floatingActionbutton) findVIEwByID(R.ID.fab2); fab1.setonClickListener(this); fab2.setonClickListener(this); getData();}private voID getData() { params.put("heading", "" + requestString); // Make RESTful webservice call using AsynchttpClIEnt object AsynchttpClIEnt clIEnt = new AsynchttpClIEnt(); clIEnt.get(Config.DETAIL_URL, params, new JsonhttpResponseHandler() { // When the response returned by REST has http // response code '200' @OverrIDe public voID onSuccess(JsONArray response) { Log.d("result",""+response); try { JsONObject result = response.getJsONObject(0); textVIEw.setText((CharSequence) result.get("detailstory")); like.setText((CharSequence) result.get("likes")); String res = (String) result.get("images"); //URL url = new URL(res); //Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getinputStream()); new DownloadImagesTask().execute(res); Log.d("result",""+res); } catch (JsONException e) { e.printstacktrace(); } //super.onSuccess(response); } // When the response returned by REST has http // response code other than '200' such as '404', // '500' or '403' etc @OverrIDe public voID onFailure(int statusCode, Throwable error, JsONArray errorResponse) { // When http response code is '404' if (statusCode == 404) { Toast.makeText(StoryDetailFragment.this, "Requested resource not found", Toast.LENGTH_LONG).show(); } // When http response code is '500' else if (statusCode == 500) { Toast.makeText(StoryDetailFragment.this, "Something went wrong at server end", Toast.LENGTH_LONG).show(); } // When http response code other than 404, 500 else { Toast.makeText( StoryDetailFragment.this, "Unexpected Error occcured! [Most common Error: Device might " + "not be connected to Internet or Remote Server is not up and running], check for other errors as well", Toast.LENGTH_LONG).show(); } } });}@OverrIDepublic voID onBackpressed() { super.onBackpressed(); finish();}@OverrIDepublic boolean onoptionsItemSelected(MenuItem item) { int ID = item.getItemID(); if (ID == androID.R.ID.home) { onBackpressed(); } return super.onoptionsItemSelected(item);}@OverrIDepublic voID onClick(VIEw v) { switch (v.getID()) { case R.ID.fab1: // Code for button like click break; case R.ID.fab2: // Code for saving the articles break; }}@OverrIDepublic voID onOffsetChanged(AppbarLayout appbarLayout, int verticalOffset) { if (Math.abs(verticalOffset) <= appbarLayout.getTotalScrollRange() - 120) { like.setVisibility(TextVIEw.VISIBLE); } else { like.setVisibility(TextVIEw.GONE); }}public class DownloadImagesTask extends AsyncTask<String, VoID, Bitmap> { @OverrIDe protected Bitmap doInBackground(String... params) { return download_Image(params[0]); } @OverrIDe protected voID onPostExecute(Bitmap result) { imageVIEw.setimageBitmap(result); } private Bitmap download_Image(String url) { Bitmap bmp = null; try { URL ulrn = new URL(url); httpURLConnection con = (httpURLConnection) ulrn.openConnection(); inputStream is = con.getinputStream(); bmp = BitmapFactory.decodeStream(is); if (null != bmp) return bmp; } catch (Exception e) { } return bmp; }}}XML文件fragment_story_detail.xml
<androID.support.design.Widget.CoordinatorLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"xmlns:app="http://schemas.androID.com/apk/res-auto"xmlns:tools="http://schemas.androID.com/tools"androID:layout_wIDth="match_parent"androID:layout_height="match_parent"androID:fitsSystemwindows="true"tools:context="com.trueblueoperator.samplescrolling.ScrollingActivity"><androID.support.design.Widget.AppbarLayout androID:ID="@+ID/app_bar" androID:layout_wIDth="match_parent" androID:layout_height="192dp" androID:fitsSystemwindows="true" androID:theme="@style/Apptheme.AppbarOverlay"> <androID.support.design.Widget.CollapsingToolbarLayout androID:ID="@+ID/toolbar_layout" androID:layout_wIDth="match_parent" androID:layout_height="match_parent" androID:fitsSystemwindows="true" app:contentScrim="?attr/colorPrimary" app:layout_scrollFlags="scroll|exitUntilCollapsed"> <ImageVIEw androID:ID="@+ID/story_image" androID:layout_wIDth="match_parent" androID:layout_height="192dp" androID:scaleType="centerCrop" androID:src="@drawable/image" app:layout_collapseMode="parallax" /> <androID.support.v7.Widget.Toolbar androID:ID="@+ID/toolbar" androID:layout_wIDth="match_parent" androID:layout_height="?attr/actionbarSize" app:layout_collapseMode="pin" app:popuptheme="@style/Apptheme.PopupOverlay" /> </androID.support.design.Widget.CollapsingToolbarLayout></androID.support.design.Widget.AppbarLayout><include layout="@layout/content_scrolling"/><TextVIEw androID:ID="@+ID/likes" androID:layout_wIDth="wrap_content" androID:layout_height="wrap_content" androID:paddingleft="5dp" androID:paddingBottom="5dp" androID:paddingtop="5dp" androID:paddingRight="70dp" androID:layout_marginRight="10dp" androID:textSize="20dp" androID:background="@drawable/rounded_corner" androID:text="100" app:layout_anchor="@ID/app_bar" app:layout_anchorGravity="right|bottom" /><androID.support.design.Widget.floatingActionbutton androID:ID="@+ID/fab1" androID:layout_wIDth="wrap_content" androID:layout_height="wrap_content" androID:src="@drawable/like" app:layout_anchor="@ID/app_bar" app:layout_anchorGravity="right|bottom" /><androID.support.design.Widget.floatingActionbutton androID:ID="@+ID/fab2" androID:layout_wIDth="wrap_content" androID:layout_height="wrap_content" androID:src="@drawable/like" androID:layout_gravity="bottom|right" /></androID.support.design.Widget.CoordinatorLayout>解决方法:
什么是你的logcat投掷
E/art: Throwing OutOfMemoryError “Failed to allocate a 22400012 byte
allocation with 4194304 free bytes and 5MB until OOM”I/art: Alloc
14(448B) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB,
paused 1.077ms total 107.298ms I/art: Forcing collection of
SoftReferences for 21MB allocation I/art: Alloc concurrent mark sweep
GC freed 3(96B) AllocSpace objects, 0(0B) LOS objects, 6% free,
58MB/62MB, paused 620us total 36.488ms E/art: Throwing
OutOfMemoryError “Failed to allocate a 22400012 byte allocation with
4194304 free bytes and 5MB until OOM” D/skia: — allocation Failed
for scaled bitmap
当应用程序尝试将更多数据添加到堆空间区域时,将触发Java堆空间错误,但没有足够的空间.
请减少Image Sizes&增加VM堆大小(AVD).
每个AndroID驱动的设备都有不同的系统可用RAM,因此为每个应用程序提供不同的堆限制.您可以调用getMemoryClass()来估算应用程序的可用堆(以兆字节为单位).如果您的应用尝试分配的内存超过此处可用内存,则会收到OutOfMemoryError.
忠告
使用androID：largeHeap =“true”不是一个好主意.
请阅读
> Managing Your App’s Memory
> Strange out of memory issue while loading an image to a Bitmap object
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