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我得到這個內存不足2457616字節的分配錯誤，在我的應用程序中，我在線性佈局背景中使用21個圖像在幾個xml文件。和一些圖像訪問形式服務器只爲顯示不設置在後臺，我也使用片段在我的應用程序，應用程序運行良好，直到第一次12至13，但之後，它顯示內存不足的錯誤。android應用程序崩潰內存不足2457616字節分配
請我的XML，Java文件提到波紋管和logcat的：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation ="vertical"
android:background="@drawable/home_pg_3">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:orientation="horizontal"
android:layout_weight="2">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1.8" >
<Button
android:id="@+id/shop"
android:layout_width="match_parent"
android:layout_height="fill_parent"
style="@style/myButton" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_weight="1">
<Button
android:id="@+id/event"
android:layout_width="fill_parent"
android:layout_height="0dp"
style="@style/myButton"
android:layout_weight="2" />
<Button
android:id="@+id/dine"
android:layout_width="fill_parent"
android:layout_height="0dp"
style="@style/myButton"
android:layout_weight="4" />
</LinearLayout>
</LinearLayout>
<!-- footer lenear -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<Button
android:id="@+id/offers"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="1"
style="@style/myButton" />
<Button
android:id="@+id/entertainment"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="1"
style="@style/myButton" />
<Button
android:id="@+id/contacts"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight=".85"
style="@style/myButton" />
</LinearLayout>
MainActivity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home_page);
//Bundle b = getIntent().getExtras();
initialize();
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
btn3.setOnClickListener(this);
// key1 = b.getInt("key_value");
// Restore statry{
if (savedInstanceState != null) {
// The fragment manager will handle restoring them if we are being
// restored from a saved state
}
// If this is the first creation of the activity, add fragments to it
else {
// If our layout has a container for the image selector fragment,
// add it
Fragname = (ViewGroup) findViewById(R.id.fragment_place);
if (Fragname != null) {
//Log.i(TAG, "onCreate: adding HeaderFragment to MainActivity");
// Add Header fragment to the activity's container layout
HomeScreen homescreen1 = new HomeScreen();
FragmentTransaction fragmentTransaction = getSupportFragmentManager()
.beginTransaction();
fragmentTransaction.replace(Fragname.getId(),
homescreen1, HomeScreen.class.getName());
// Commit the transaction
fragmentTransaction.commit();
}
// If our layout has a container for the selector fragment,
// add it
// If our layout has a container for the image selector fragment,
// add it
}
}
private void initialize(){
btn1 =(Button) findViewById(R.id.btn_home);
btn2 =(Button) findViewById(R.id.btn_search);
btn3 =(Button) findViewById(R.id.btn_map);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId())
{
case R.id.btn_home:
HomeScreenmet();
break;
case R.id.btn_search:
SearchScreenmet();
break;
case R.id.btn_map:
MapScreenmet();
break;
}
}
private void MapScreenmet() {
// TODO Auto-generated method stub
Fragname = (ViewGroup) findViewById(R.id.fragment_place);
if (Fragname != null) {
// Log.i(TAG, "onCreate: adding HeaderFragment to MainActivity");
// Add Header fragment to the activity's container layout
MapScreen mapscreen = new MapScreen();
FragmentTransaction fragmentTransaction = getSupportFragmentManager()
.beginTransaction();
fragmentTransaction.replace(Fragname.getId(),
mapscreen, HomeScreen.class.getName());
// Commit the transaction
fragmentTransaction.addToBackStack("tag").commit();
}
}
private void SearchScreenmet() {
// TODO Auto-generated method stub
Fragname = (ViewGroup) findViewById(R.id.fragment_place);
if (Fragname != null) {
// Log.i(TAG, "onCreate: adding HeaderFragment to MainActivity");
// Add Header fragment to the activity's container layout
SearchScreen searchscreen = new SearchScreen();
FragmentTransaction fragmentTransaction = getSupportFragmentManager()
.beginTransaction();
fragmentTransaction.replace(Fragname.getId(),
searchscreen, HomeScreen.class.getName());
// Commit the transaction
fragmentTransaction.addToBackStack("tag").commit();
}
}
private void HomeScreenmet() {
// TODO Auto-generated method stub
Fragname = (ViewGroup) findViewById(R.id.fragment_place);
if (Fragname != null) {
//Log.i(TAG, "onCreate: adding HeaderFragment to MainActivity");
// Add Header fragment to the activity's container layout
HomeScreen headerFragment = new HomeScreen();
FragmentTransaction fragmentTransaction = getSupportFragmentManager()
.beginTransaction();
fragmentTransaction.replace(Fragname.getId(),
headerFragment, HomeScreen.class.getName());
// Commit the transaction
fragmentTransaction.commit();
}
}
訪問服務器的圖像也檢查下面的代碼： offer.xml，Offer.java，ImageLoader.java
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/offers" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight=".3"
android:orientation="horizontal"
>
<ImageView
android:id="@+id/offer_setimage1"
android:layout_width="match_parent"
android:layout_height="match_parent"
style="@style/image_offer_default"
android:layout_gravity="center_horizontal"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight=".7"
android:orientation="horizontal">
<HorizontalScrollView android:layout_width="match_parent"
android:layout_height="match_parent"
>
<LinearLayout android:id="@+id/offer_linearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
>
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
offer.java
public class Offers extends Fragment implements OnClickListener{
private static final String TAG = Offers.class.getSimpleName();
private OnViewSelectedListener mParentOnViewSelectedListener;
private ProgressDialog pDialog;
private static String url = "http://www.xyz.com/aaa/test4.json";
//JSON Node names
private static final String TAG_iit = "iit";
private static final String TAG_UPDATE = "update";
private static final String TAG_ID = "id";
private static final String TAG_TITLE = "title";
private static final String TAG_DESCRIPTION = "description";
private static final String TAG_DURATION = "duration";
private static final String TAG_THUMB_URL = "thumb_url";
private static final String TAG_PAGE_URL = "page_url";
LinearLayout mainLayout;
private View cell;
ImageLoader imageLoader;
//contacts JSONArray
JSONArray contacts = null;
View view;
LayoutParams params;
//Hashmap for ListView
ArrayList<HashMap<String, String>> contactList;
public void onAttach(Activity activity) {
super.onAttach(activity);
//Log.v(TAG, "onAttach");
// Check if parent fragment (if there is one) implements the image
// selection interface
Fragment parentFragment = getParentFragment();
if (parentFragment != null
&& parentFragment instanceof OnViewSelectedListener) {
mParentOnViewSelectedListener = (OnViewSelectedListener) parentFragment;
}
// Otherwise, check if parent activity implements the image
// selection interface
else if (activity != null && activity instanceof OnViewSelectedListener) {
mParentOnViewSelectedListener = (OnViewSelectedListener) activity;
}
// If neither implements the image selection callback, warn that
// selections are being missed
else if (mParentOnViewSelectedListener == null) {
Log.w(TAG,
"onAttach: niether the parent fragment or parent activity implement OnViewSelectedListener, "
+ "image selections will not be communicated to other components");
}
}
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
view =inflater.inflate(
R.layout.offers, container, false);
mainLayout = (LinearLayout) view.findViewById(R.id.offer_linearLayout);
contactList = new ArrayList<HashMap<String, String>>();
new GetContacts().execute();
//Inflate the layout for this fragment
return view;
}
private class GetContacts extends AsyncTask<Void, Void, Void> {
String[] tt =new String[10];
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
//Log.e(TAG , "> Tag " + jsonStr);
if (jsonStr != null) {
try {
//Log.e("Response: ", "> inside try");
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
JSONObject object = jsonObj.getJSONObject(TAG_iit);
//Log.e("Response2 : ", ""+object);
contacts = object.getJSONArray(TAG_UPDATE);
// looping through All Contacts
//Log.e("Response3 : ", ""+contacts.length());
for (int i = 0; i < contacts.length(); i++) {
JSONObject c = contacts.getJSONObject(i);
Log.e("Response4 : ", ""+contacts.getJSONObject(i));
String id = c.getString(TAG_ID);
String title = c.getString(TAG_TITLE);
String desc = c.getString(TAG_DESCRIPTION);
String duration = c.getString(TAG_DURATION);
String image = c.getString(TAG_THUMB_URL);
String pageurl = c.getString(TAG_PAGE_URL);
// Phone node is JSON Object
//JSONObject image_url = c.getJSONObject(TAG_PAGE_URL);
//String mobile = phone.getString(TAG_PHONE_MOBILE);
// String home = phone.getString(TAG_PHONE_HOME);
//String office = phone.getString(TAG_PHONE_OFFICE);
// tmp hashmap for single contact
HashMap<String, String> contact = new HashMap<String, String>();
// adding each child node to HashMap key => value
contact.put(TAG_ID, id);
contact.put(TAG_TITLE, title);
contact.put(TAG_DESCRIPTION, desc);
contact.put(TAG_DURATION, duration);
contact.put(TAG_THUMB_URL, image);
contact.put(TAG_PAGE_URL, pageurl);
// adding contact to contact list
contactList.add(contact);
}
} catch (JSONException e) {
//Log.e("offer catch" , "inside catch ");
e.printStackTrace();
}
} else {
// img = (ImageView) view.findViewById(R.id.offer_setimage1);
// img.setImageResource(R.drawable.offer1);
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
/**
* Updating parsed JSON data into ListView
* */
if(contactList.size() != 0){
super.onPostExecute(result);
imageLoader =new ImageLoader(getActivity());
HashMap<String, String> content1 = contactList.get(0);
String getImg1 =content1.get(TAG_THUMB_URL).toString();
ImageView img = (ImageView) view.findViewById(R.id.offer_setimage1);
imageLoader.DisplayImage(getImg1,img);
for (int i = 0; i < (contactList.size()); i++) {
HashMap<String, String> content = contactList.get(i);
final String getImg =content.get(TAG_THUMB_URL).toString();
tt[i]=getImg;
//imageView.setImageResource(R.drawable.ic_launcher);
// imageLoader.DisplayImage(song.get(TAG_THUMB_URL),imageView);
cell = getLayoutInflater(null).inflate(R.layout.cell_offer, null);
final ImageView imageView1 = (ImageView) cell.findViewById(R.id.offer_image);
imageView1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
final ImageView img = (ImageView) view.findViewById(R.id.offer_setimage1);
BitmapDrawable drawable = (BitmapDrawable) imageView1.getDrawable();
Bitmap bitmap = drawable.getBitmap();
// img.getLayoutParams().width = 480;
// img.getLayoutParams().height = 400;
img.setImageBitmap(bitmap);
/// img.setBackgroundDrawable(drawable);
}
});
// Log.v("images ",""+tt[i]);
imageLoader.DisplayImage(tt[i],imageView1);
mainLayout.addView(cell);
// unbindDrawables(imageView1);
}
}
else{
AlertDialog.Builder alert = new AlertDialog.Builder(getActivity());
alert.setTitle("Network Error");
alert.setMessage("Please Check Internet Connection");
//alert.setIcon(R.drawable.a1);
alert.setNegativeButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
alert.show();
// final ImageView imageView1 = (ImageView) view.findViewById(R.id.offer_setimage1);
// imageView1.setImageResource(R.drawable.offer1);
}
}
}
ImageLoadr.java
package avignyata.android.event;
import avignyata.android.mallpacific.R;
public class ImageLoader {
MemoryCache memoryCache=new MemoryCache();
FileCache fileCache;
private Map<ImageView, String> imageViews=Collections.synchronizedMap(new WeakHashMap<ImageView, String>());
ExecutorService executorService;
public ImageLoader(Context context){
fileCache=new FileCache(context);
executorService=Executors.newFixedThreadPool(5);
}
final int stub_id = R.drawable.offer1;
public void DisplayImage(String url, ImageView imageView)
{
imageViews.put(imageView, url);
Bitmap bitmap=memoryCache.get(url);
if(bitmap!=null){
imageView.setImageBitmap(bitmap);
bitmap.recycle();
}
else
{
queuePhoto(url, imageView);
// imageView.setImageResource(stub_id);
}
}
private void queuePhoto(String url, ImageView imageView)
{
PhotoToLoad p=new PhotoToLoad(url, imageView);
executorService.submit(new PhotosLoader(p));
}
private Bitmap getBitmap(String url)
{
File f=fileCache.getFile(url);
//from SD cache
Bitmap b = decodeFile(f);
if(b!=null)
return b;
//from web
try {
Bitmap bitmap=null;
URL imageUrl = new URL(url);
HttpURLConnection conn = (HttpURLConnection)imageUrl.openConnection();
conn.setConnectTimeout(30000);
conn.setReadTimeout(30000);
conn.setInstanceFollowRedirects(true);
InputStream is=conn.getInputStream();
OutputStream os = new FileOutputStream(f);
Utils.CopyStream(is, os);
os.close();
bitmap = decodeFile(f);
return bitmap;
} catch (Exception ex){
ex.printStackTrace();
return null;
}
}
//decodes image and scales it to reduce memory consumption
private Bitmap decodeFile(File f){
try {
//decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f),null,o);
//Find the correct scale value. It should be the power of 2.
final int REQUIRED_SIZE=150;
int width_tmp=o.outWidth, height_tmp=o.outHeight;
int scale=1;
while(true){
if(width_tmp/2<REQUIRED_SIZE || height_tmp/2<REQUIRED_SIZE)
break;
width_tmp/=2;
height_tmp/=2;
scale*=2;
}
//decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize=scale;
return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
} catch (FileNotFoundException e) {}
return null;
}
//Task for the queue
private class PhotoToLoad
{
public String url;
public ImageView imageView;
public PhotoToLoad(String u, ImageView i){
url=u;
imageView=i;
}
}
class PhotosLoader implements Runnable {
PhotoToLoad photoToLoad;
PhotosLoader(PhotoToLoad photoToLoad){
this.photoToLoad=photoToLoad;
}
@Override
public void run() {
if(imageViewReused(photoToLoad))
return;
Bitmap bmp=getBitmap(photoToLoad.url);
memoryCache.put(photoToLoad.url, bmp);
if(imageViewReused(photoToLoad))
return;
BitmapDisplayer bd=new BitmapDisplayer(bmp, photoToLoad);
Activity a=(Activity)photoToLoad.imageView.getContext();
a.runOnUiThread(bd);
}
}
boolean imageViewReused(PhotoToLoad photoToLoad){
String tag=imageViews.get(photoToLoad.imageView);
if(tag==null || !tag.equals(photoToLoad.url))
return true;
return false;
}
//Used to display bitmap in the UI thread
class BitmapDisplayer implements Runnable
{
Bitmap bitmap;
PhotoToLoad photoToLoad;
public BitmapDisplayer(Bitmap b, PhotoToLoad p){bitmap=b;photoToLoad=p;}
public void run()
{
if(imageViewReused(photoToLoad))
return;
if(bitmap!=null)
photoToLoad.imageView.setImageBitmap(bitmap);
else
photoToLoad.imageView.setImageResource(stub_id);
}
}
public void clearCache() {
memoryCache.clear();
fileCache.clear();
}
}
哇，你是認真的嗎？圖像大小超過500 KB。其中一些差不多是1MB！你正在加載21張巨大的圖片？嘗試調整它們的大小 – JoelFernandes