Android 如何删除从手机中获取所有联系人详细信息和所有图像时的outofmemory错误
这是我在运行这些联系人应用程序时遇到的关于内存不足的问题。 我认为这些错误是由于图像造成的 在emulator和bluestacjk中，这段代码可以正常工作，但在安装到mobile之后，内存不足 这段代码是关于在适配器的帮助下从listview中填充的手机中获取带有图像的联系人详细信息，但在手机中不起作用Android 如何删除从手机中获取所有联系人详细信息和所有图像时的outofmemory错误,android,Android,这是我在运行这些联系人应用程序时遇到的关于内存不足的问题。 我认为这些错误是由于图像造成的 在emulator和bluestacjk中，这段代码可以正常工作，但在安装到mobile之后，内存不足 这段代码是关于在适配器的帮助下从listview中填充的手机中获取带有图像的联系人详细信息，但在手机中不起作用 import android.app.AlertDialog; import android.content.ContentResolver; import android.
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.app.ProgressDialog;
import android.content.ContentUris;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.Toolbar;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.SparseBooleanArray;
import android.view.ActionMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;
import com.example.admin.business_app.R;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Locale;
/**
* Created by admin on 3/15/2016.
*/
public class Contact_list extends Fragment {
// Declare Variables
ListView contactlistview;
ListViewAdapter listviewadapter;
List<WorldPopulation> worldpopulationlist = new ArrayList<WorldPopulation>();
Context context;
String[] name;
String[] phoneno;
ProgressDialog loading;
long contact_id;
Bitmap image;
Toolbar mToolbar;
EditText search_text;
//EditText editsearch;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootview = inflater.inflate(R.layout.listview_main, container, false);
{
super.onCreate(savedInstanceState);
// Get the view from listview_main.xml
//ActionBar actionBar = getSupportActionBar();
// mToolbar = (Toolbar) findViewById(R.id.contacts_toolbar);
// mToolbar.setTitle("Group");
// setSupportActionBar(mToolbar);
contactlistview = (ListView) rootview.findViewById(R.id.listview);
search_text = (EditText) rootview.findViewById(R.id.search);
search_text.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
String text = search_text.getText().toString().toLowerCase(Locale.getDefault());
listviewadapter.filter(text);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
});
// Generate sample data into string array
Cursor phones = getActivity().getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null,
null, null);
while (phones.moveToNext()) {
String name = phones
.getString(phones
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = phones
.getString(phones
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
contact_id = phones.getLong(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
image = getFacebookPhoto(contact_id);
System.out.println("value of contacts id is :" + contact_id);
WorldPopulation objContact = new WorldPopulation();
objContact.setName(name);
objContact.setPhoneno(phoneNumber);
objContact.setPhoto(image);
worldpopulationlist.add(objContact);
}
phones.close();
listviewadapter = new ListViewAdapter(getActivity(), R.layout.listview_item,
worldpopulationlist);
if (null != worldpopulationlist && worldpopulationlist.size() != 0) {
Collections.sort(worldpopulationlist, new Comparator<WorldPopulation>() {
public int compare(WorldPopulation lhs, WorldPopulation rhs) {
return lhs.getName().compareTo(rhs.getName());
}
});
AlertDialog alert = new AlertDialog.Builder(
getActivity()).create();
alert.setTitle("");
alert.setMessage(worldpopulationlist.size() + " Contact Found!!!");
alert.setButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alert.show();
} else {
showToast("No Contact Found!!!");
} // Binds the Adapter to the ListView
contactlistview.setAdapter(listviewadapter);
contactlistview.setTextFilterEnabled(true);
contactlistview.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
// Capture ListView item click
contactlistview.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
@Override
public void onItemCheckedStateChanged(ActionMode mode,
int position, long id, boolean checked) {
// Capture total checked items
final int checkedCount = contactlistview.getCheckedItemCount();
// Set the CAB title according to total checked items
mode.setTitle(checkedCount + " Selected");
// Calls toggleSelection method from ListViewAdapter Class
listviewadapter.toggleSelection(position);
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.selectAll:
final int checkedCount = worldpopulationlist.size();
listviewadapter.removeSelection();
for (int i = 0; i < checkedCount; i++) {
contactlistview.setItemChecked(i, true);
}
mode.setTitle(checkedCount + " Selected");
listviewadapter.notifyDataSetChanged();
return true;
case R.id.delete:
// Calls getSelectedIds method from ListViewAdapter Class
SparseBooleanArray selected = listviewadapter
.getSelectedIds();
// Captures all selected ids with a loop
for (int i = (selected.size() - 1); i >= 0; i--) {
if (selected.valueAt(i)) {
WorldPopulation selecteditem = listviewadapter
.getItem(selected.keyAt(i));
// Remove selected items following the ids
listviewadapter.remove(selecteditem);
Toast.makeText(getActivity(), "delete sucesdfully", Toast.LENGTH_SHORT).show();
}
}
// Close CAB
mode.finish();
listviewadapter.notifyDataSetChanged();
return true;
default:
return false;
}
}
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
mode.getMenuInflater().inflate(R.menu.contextualmenu, menu);
return true;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
// TODO Auto-generated method stub
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
// TODO Auto-generated method stub
return false;
}
});
}
return rootview;
}
private void showToast(String msg)
{
Toast.makeText(getActivity(), msg, Toast.LENGTH_SHORT).show();
}
public boolean onCreateOptionsMenu(Menu menu)
{
getActivity().getMenuInflater().inflate(R.menu.menu1, menu);
//final MenuItem item = menu.findItem(R.id.menu_item_search);
//final android.support.v7.widget.SearchView searchView = (android.support.v7.widget.SearchView) MenuItemCompat.getActionView(item);
// MenuItemCompat.setOnActionExpandListener(item, new MenuItemCompat.OnActionExpandListener() {
// @Override
// public boolean onMenuItemActionCollapse(MenuItem item) {
// // Do something when collapsed
// listviewadapter.setFilter(worldpopulationlist);
// return true; // Return true to collapse action view
// }
//
// @Override
// public boolean onMenuItemActionExpand(MenuItem item) {
// // Do something when expanded
// return true; // Return true to expand action view
// }
// });
// Locate the EditText in menu.xml
// editsearch = (EditText) menu.findItem(R.id.menu_item_search).getActionView();
//
// // Capture Text in EditText
// editsearch.addTextChangedListener(textWatcher);
//
// // Show the search menu item in menu.xml
// MenuItem menuSearch = menu.findItem(R.id.menu_item_search);
//
// menuSearch.setOnActionExpandListener(new MenuItem.OnActionExpandListener()
// {
//
// // Menu Action Collapse
// @Override
// public boolean onMenuItemActionCollapse(MenuItem item) {
// // Empty EditText to remove text filtering
// editsearch.setText("");
// editsearch.clearFocus();
// return true;
// }
//
// // Menu Action Expand
// @Override
// public boolean onMenuItemActionExpand(MenuItem item) {
// // Focus on EditText
// editsearch.requestFocus();
//
// // Force the keyboard to show on EditText focus
// InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
// imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
// return true;
// }
// });
//
// // Show the settings menu item in menu.xml
// MenuItem menuSettings = menu.findItem(R.id.action_setting);
//
// // Capture menu item clicks
// menuSettings.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener()
// {
//
// @Override
// public boolean onMenuItemClick(MenuItem item) {
// // TODO Auto-generated method stub
// // Do something here
// Toast.makeText(getApplicationContext(), "Nothing here!",
// Toast.LENGTH_LONG).show();
// return false;
// }
//
// });
return true;
}
// private TextWatcher textWatcher = new TextWatcher()
// {
//
// @Override
// public void afterTextChanged(Editable s) {
// // TODO Auto-generated method stub
// String text = editsearch.getText().toString()
// .toLowerCase(Locale.getDefault());
// listviewadapter.filter(text);
// }
//
// @Override
// public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
// int arg3) {
// // TODO Auto-generated method stub
//
// }
//
// @Override
// public void onTextChanged(CharSequence arg0, int arg1, int arg2,
// int arg3) {
// // TODO Auto-generated method stub
//
// }
//
// };
// @Override
// public boolean onQueryTextChange(String newText) {
// final List<WorldPopulation> filteredModelList = filter(worldpopulationlist, newText);
// listviewadapter.setFilter(filteredModelList);
// return true;
// }
//
// @Override
// public boolean onQueryTextSubmit(String query)
// {
// return false;
// }
//
// private List<WorldPopulation> filter(List<WorldPopulation> models, String query)
// {
// query = query.toLowerCase();
//
// final List<WorldPopulation> filteredModelList = new ArrayList<>();
// for (WorldPopulation model : models) {
// final String text = model.getName().toLowerCase();
// if (text.contains(query))
// {
// filteredModelList.add(model);
// }
// }
// return filteredModelList;
// }
public void Refresh_listview() {
// loading =ProgressDialog.show(MainActivity.this, "Updating", "Please wait...", false, false);
// loading.show();
listviewadapter.notifyDataSetChanged();
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
switch (item.getItemId())
{
case R.id.refresh:
//Refresh_listview();
return true;
case R.id.menu_item_search:
Toast.makeText(getActivity(),"click on it",Toast.LENGTH_SHORT).show();
}
return super.onOptionsItemSelected(item);
}
public Bitmap getFacebookPhoto(long contacsid)
{
System.out.println("value of conatcts id is in facebook funtion:"+contacsid);
Uri contactUri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, contacsid);
Uri photoUri = Uri.withAppendedPath(contactUri, ContactsContract.Contacts.Photo.PHOTO);
ContentResolver cr = getActivity().getContentResolver();
Cursor contact = cr.query(photoUri,new String[] { ContactsContract.Contacts._ID }, null, null, null);
if (contact.moveToFirst()) {
//long userId = contact.getLong(contact.getColumnIndex(ContactsContract.Contacts._ID));
photoUri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, contacsid);
}
else {
Bitmap defaultPhoto = decodeSampledBitmapFromResource(getResources(), R.drawable.default_contact_image, 100, 100);
//decodeResource(getResources(), R.drawable.default_contact_image);
return defaultPhoto;
}
if (photoUri != null)
{
InputStream input = ContactsContract.Contacts.openContactPhotoInputStream(cr, photoUri);
if (input != null)
{
return BitmapFactory.decodeStream(input);
}
} else
{
Bitmap defaultPhoto = decodeSampledBitmapFromResource(getResources(), R.drawable.default_contact_image, 100, 100);
// decodeResource(getResources(), R.drawable.default_contact_image);
return defaultPhoto;
}
Bitmap defaultPhoto = decodeSampledBitmapFromResource(getResources(), R.drawable.default_contact_image, 100, 100);
//decodeResource(getResources(), R.drawable.default_contact_image);
return defaultPhoto;
}
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) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight
&& (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
}
class ListViewAdapter extends ArrayAdapter<WorldPopulation>
{
// Declare Variables
Context context;
LayoutInflater inflater;
List<WorldPopulation> worldpopulationlist;
private SparseBooleanArray mSelectedItemsIds;
private ArrayList<WorldPopulation> arraylist;
int xDim,yDim;
public ListViewAdapter(Context context, int resourceId,
List<WorldPopulation> worldpopulationlist) {
super(context, resourceId, worldpopulationlist);
mSelectedItemsIds = new SparseBooleanArray();
this.context = context;
this.worldpopulationlist = worldpopulationlist;
this.arraylist = new ArrayList<WorldPopulation>();
this.arraylist.addAll(worldpopulationlist);
inflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
return worldpopulationlist.size();
}
@Override
public WorldPopulation getItem(int position) {
return worldpopulationlist.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
private class ViewHolder
{
TextView name;
TextView phoneno;
ImageView personphoto;
}
public View getView(final int position, View view, ViewGroup parent) throws IndexOutOfBoundsException {
final ViewHolder holder;
if (view == null)
{
holder = new ViewHolder();
view = inflater.inflate(R.layout.listview_item, null);
// Locate the TextViews in listview_item.xml
holder.name = (TextView) view.findViewById(R.id.contactname);
holder.phoneno = (TextView) view.findViewById(R.id.contactphone);
holder.personphoto = (ImageView) view.findViewById(R.id.contactsimages);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
// Capture position and set to the TextViews
holder.name.setText(worldpopulationlist.get(position).getName());
holder.phoneno.setText(worldpopulationlist.get(position).getPhoneno());
holder.personphoto.setImageBitmap(worldpopulationlist.get(position).getPhoto());
return view;
}
public void filter(String charText)
{
charText = charText.toLowerCase(Locale.getDefault());
worldpopulationlist.clear();
if (charText.length() == 0) {
worldpopulationlist.addAll(arraylist);
}
else
{
for (WorldPopulation wp : arraylist)
{
if (wp.getName().toLowerCase(Locale.getDefault()).contains(charText))
{
worldpopulationlist.add(wp);
}
}
}
notifyDataSetChanged();
}
@Override
public void remove(WorldPopulation object)
{
worldpopulationlist.remove(object);
notifyDataSetChanged();
}
public List<WorldPopulation> getWorldPopulation()
{
return worldpopulationlist;
}
public void toggleSelection(int position) {
selectView(position, !mSelectedItemsIds.get(position));
}
public void removeSelection()
{
mSelectedItemsIds = new SparseBooleanArray();
notifyDataSetChanged();
}
public void selectView(int position, boolean value) {
if (value)
mSelectedItemsIds.put(position, value);
else
mSelectedItemsIds.delete(position);
notifyDataSetChanged();
}
public int getSelectedCount()
{
return mSelectedItemsIds.size();
}
public SparseBooleanArray getSelectedIds() {
return mSelectedItemsIds;
}
// Filter Class
// public void filter(String charText)
// {
// charText = charText.toLowerCase(Locale.getDefault());
// worldpopulationlist.clear();
// if (charText.length() == 0) {
// worldpopulationlist.addAll(arraylist);
// }
// else
// {
// for (WorldPopulation wp : arraylist)
// {
// if (wp.getName().toLowerCase(Locale.getDefault()).contains(charText))
// {
// worldpopulationlist.add(wp);
// }
// }
// }
// notifyDataSetChanged();
// }
//
// public void setFilter(List<WorldPopulation> countryModels)
// {
// worldpopulationlist = new ArrayList<>();
// worldpopulationlist.addAll(countryModels);
// notifyDataSetChanged();
// }
public void Refresh_listview()
{
// loading =ProgressDialog.show(MainActivity.this, "Updating", "Please wait...", false, false);
// loading.show();
notifyDataSetChanged();
}
}
导入android.app.AlertDialog；
导入android.content.ContentResolver；
导入android.app.ProgressDialog；
导入android.content.ContentUris；
导入android.content.Context；
导入android.content.DialogInterface；
导入android.content.res.Resources；
导入android.database.Cursor；
导入android.graphics.Bitmap；
导入android.graphics.BitmapFactory；
导入android.net.Uri；
导入android.os.Bundle；
导入android.provider.contacts合同；
导入android.support.v4.app.Fragment；
导入android.support.v7.app.ActionBar；
导入android.support.v7.app.ActionBarActivity；
导入android.support.v7.widget.Toolbar；
导入android.text.Editable；
导入android.text.TextWatcher；
导入android.util.SparseBooleanArray；
导入android.view.ActionMode；
导入android.view.LayoutInflater；
导入android.view.Menu；
导入android.view.MenuInflater；
导入android.view.MenuItem；
导入android.view.view；
导入android.view.ViewGroup；
导入android.widget.AbsListView；
导入android.widget.ArrayAdapter；
导入android.widget.EditText；
导入android.widget.ImageView；
导入android.widget.ListView；
导入android.widget.SearchView；
导入android.widget.TextView；
导入android.widget.Toast；
导入com.example.admin.business\u app.R；
导入java.io.InputStream；
导入java.util.ArrayList；
导入java.util.Collections；
导入java.util.Comparator；
导入java.util.List；
导入java.util.Locale；
/**
*由管理员于2016年3月15日创建。
*/
公共类联系人列表扩展片段{
//声明变量
ListView联系人ListView；
ListViewAdapter ListViewAdapter；
List worldpopulationlist=新建ArrayList（）；
语境；
字符串[]名称；
字符串[]电话号码；
对话加载；
长联系电话号码；
位图图像；
工具栏工具栏；
编辑文本搜索；
//编辑文本编辑搜索；
CreateView上的公共视图（布局、充气机、视图组容器、捆绑包保存状态）{
视图根视图=充气机。充气（R.layout.listview_main，container，false）；
{
super.onCreate（savedInstanceState）；
//从listview_main.xml获取视图
//ActionBar ActionBar=getSupportActionBar（）；
//mToolbar=（工具栏）findViewById（R.id.contacts\u工具栏）；
//mToolbar.setTitle（“集团”）；
//设置支持操作栏（mToolbar）；
contactlistview=（ListView）rootview.findViewById（R.id.ListView）；
search_text=（EditText）rootview.findviewbyd（R.id.search）；
search_text.addTextChangedListener（新的TextWatcher（）{
public void PostTextChanged（可编辑arg0）{
//TODO自动生成的方法存根
String text=search_text.getText（）.toString（）.toLowerCase（Locale.getDefault（））；
listviewadapter.filter（文本）；
}
@凌驾
更改前的公共无效（字符序列arg0，int arg1，
整数arg2，整数arg3）{
//TODO自动生成的方法存根
}
@凌驾
public void onTextChanged（字符序列arg0、int arg1、int arg2、，
int arg3）{
//TODO自动生成的方法存根
}
});
//将样本数据生成到字符串数组中
光标=getActivity（）.getContentResolver（）.query(
ContactsContract.CommonDataTypes.Phone.CONTENT\u URI，null，null，
空，空）；
while（phones.moveToNext（））{
字符串名称=电话
.getString（电话）
.getColumnIndex（ContactsContract.CommonDataTypes.Phone.DISPLAY_NAME））；
字符串phoneNumber=电话
.getString（电话）
.getColumnIndex（ContactsContract.CommonDataTypes.Phone.NUMBER））；
contact_id=phones.getLong（phones.getColumnIndex（ContactsContract.CommonDataTypes.Phone.contact_id））；
image=getFacebookPhoto（联系人id）；
System.out.println（“联系人id的值为：“+联系人id”）；
WorldPopulation objContact=新世界人口（）；
objContact.setName（名称）；
objContact.setPhoneno（电话号码）；
objContact.setPhoto（图像）；
添加（objContact）；
}
电话。关闭（）；
listviewadapter=新建listviewadapter（getActivity（），R.layout.listview_项，
世界人口清单）；
if（null！=worldpopulationlist&&worldpopulationlist.size（）！=0）{
Collections.sort（worldpopulationlist，new Comparator（）{
公共整数比较（世界人口lhs、世界人口rhs）{
返回lhs.getName（）.compareTo（rhs.getName（））；
}
});
<application
....
android:largeHeap="true"
.... >
</application>
Picasso.with(context).load(uri) .resize(50, 50).centerCrop().into(imageView)
compile 'com.squareup.picasso:picasso:2.5.2'
holder.personphoto.setImageBitmap(worldpopulationlist.get(position).getPhoto());