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，我的应用程序将使用以下错误日志进行处理。< / p>
此外，当我查看内存日志时，应用程序使用大量内存只是将服务器中的数据加载到recyclerView
日志 //在应用启动时
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 //
I/art: Alloc sticky concurrent mark sweep GC freed 10628(425KB) AllocSpace objects, 5(562KB) LOS objects, 2% free, 59MB/60MB, paused 476us total 7.071ms
I/art: Alloc partial concurrent mark sweep GC freed 928(67KB) AllocSpace objects, 1(16KB) LOS objects, 6% free, 58MB/62MB, paused 647us total 37.510ms
I/art: Alloc concurrent mark sweep GC freed 241(23KB) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 574us total 49.041ms
I/art: Forcing collection of SoftReferences for 21MB allocation
I/art: Alloc concurrent mark sweep GC freed 13(472B) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 429us total 16.959ms
E/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 8.143ms
I/art: Alloc partial concurrent mark sweep GC freed 17(480B) AllocSpace objects, 0(0B) LOS objects, 6% free, 58MB/62MB, paused 5.517ms total 17.409ms
I/art: Alloc concurrent mark sweep GC freed 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
D/AndroidRuntime: Shutting down VM
FATAL EXCEPTION: main
Process: 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.access$800(ActivityThread.java:151)
at android.app.ActivityThread$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类包含Recycler View
FragmetnAllStory.java文件
public class FragmentAllStory extends Fragment implements SwipeRefreshLayout.OnRefreshListener{// implements RecyclerView.OnScrollChangeListener {
//Creating a List of superheroes
private List<AllStoryData> allStoryDataList;
//Volley Request Queue
private RequestQueue requestQueue;
private ProgressBar progressBar;
//The request counter to send ?page=1, ?page=2 requests
private int requestCount = 1;
private RecyclerView recyclerView;
private SwipeRefreshLayout swipeRefreshLayout;
private RecyclerView.Adapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
@Nullable
@Override
public 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 onErrorResponse(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;
}
@Override
public void onResume() {
super.onResume();
requestCount =1;
allStoryDataList.clear();
getData();
}
//This method will get data from the web api
private 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 data
private 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 not
private 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;
}
@Override
public 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();
@Override
public 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();
}
}
});
}
@Override
public void onBackPressed() {
super.onBackPressed();
finish();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home) {
onBackPressed();
}
return super.onOptionsItemSelected(item);
}
@Override
public 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;
}
}
@Override
public 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>
答案 0 :(得分：4)
您的logcat是什么抛出
E / art：抛出OutOfMemoryError＆＃34;无法分配22400012字节 分配4194304个空闲字节和5MB直到OOM＆＃34; I / art：Alloc 14（448B）AllocSpace对象，0（0B）LOS对象，6％免费，58MB / 62MB， 暂停1.077ms总计107.298ms我/艺术：强制收集 用于21MB分配的SoftReferences I / art：Alloc并发标记扫描 GC释放3（96B）AllocSpace对象，0（0B）LOS对象，6％免费， 58MB / 62MB，暂停620us总计36.488ms E / art：投掷 OutOfMemoryError＆＃34;无法分配22400012字节分配 4194304个空闲字节和5MB直到OOM＆＃34; D / skia：---分配失败 用于缩放位图
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。
请减少图像尺寸＆amp;增加VM堆大小（AVD）。
每个Android设备都有不同数量的 RAM 系统可用，因此为每个应用提供不同的堆限制。您可以拨打 getMemoryClass() 来估算应用的可用堆（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 ，则会收到 OutOfMemoryError 。
使用android:largeHeap="true"不是一个好主意。
请阅读
答案 1 :(得分：1)
调整图像位图的大小。
int height = (bitmap.getHeight() * 512 / bitmap.getWidth());
Bitmap scale = Bitmap.createScaledBitmap(bitmap, 512,height, true);
imageView.setImageBitmap(scale);
答案 2 :(得分：0)
要避免此问题，您可以在android:largeHeap="true"文件的<application/>标记中添加manifest.xml。