Memory overflow outofmemery, with ViewPager memory overflow occurs, seek answers

            
When the sliding five or six Pager and they will burst this error, ViewPager not automatically destroy Pager for you, how will the memory overflow

 package com.siyehuazhilian.nextday; 

import java.io.FileOutputStream; 
import java.io.OutputStream; 
import java.text.DateFormat; 
import java.text.ParseException; 
import java.text.SimpleDateFormat; 
import java.util.ArrayList; 
import java.util.Date; 

import android.app.Dialog; 
import android.content.Intent; 
import android.graphics.Bitmap; 
import android.graphics.Bitmap.CompressFormat; 
import android.net.Uri; 
import android.os.Bundle; 
import android.os.Environment; 
import android.support.v4.app.FragmentActivity; 
import android.support.v4.view.ViewPager; 
import android.view.Menu; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Toast; 

import com.siyehuazhilian.control.ViewPagerAdapter; 
import com.siyehuazhilian.fragment.ViewPagerAdatperFragment; 

public class MainActivity extends FragmentActivity implements OnClickListener {
/ / From the beginning of the Lunar November 14, is 
 12 月 16 日private String startDate = "2013-11-20"; 
/ / Get today's date 
private String today = new SimpleDateFormat ("yyyy-MM-dd") 
. Format (new Date ()); 
/ / The currently selected date 
private String currentDay = today; 

/ / Declare ViewPager object 
private ViewPager viewPager = null; 
/ / Declare ViewPager adapter 
private ViewPagerAdapter viewPagerAdapter = null; 
/ / ViewPagerAdapter data 
private ArrayList  list; 

/ / Sharing dialog 
private Dialog dialog; 

@ Override 
protected void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState); 
setContentView (R.layout.activity_main); 
viewPager = (ViewPager) findViewById (R.id.viewpager); 
list = new ArrayList  (); 
viewPagerAdapter = new ViewPagerAdapter (getSupportFragmentManager (), 
list); 

/ / Set the adapter 
 to ViewPagerviewPager.setAdapter (viewPagerAdapter); 
} 

@ Override 
protected void onResume () {
super.onResume (); 
/ / Load data 
addViewPagerAdpaterData (); 
viewPager.setCurrentItem (3); 

} 

/ ** 
* Add specific data for the adapter 
* 
* @ Throws ParseException 
* / 
private void addViewPagerAdpaterData () {
try {
ArrayList  listDate = new ArrayList  (); 
DateFormat dateFormat = new SimpleDateFormat ("yyyy-MM-dd"); 
int count = differenceDay (startDate, today); 
/ / This is a Fragment of each fragment adapter, so to create a new class to manage 
 debrisfor (int i = 0; i listDate.add (new Date (dateFormat.parse (today). getTime () 
- 1000 * 60 * 60 * 24 * i)); 
list.add (ViewPagerAdatperFragment.newInstance (listDate.get (i) 
.. ToString () split (""))); 
} 

viewPagerAdapter.notifyDataSetChanged (); 
} Catch (ParseException e) {
} 
} 

/ ** 

 Number of days difference between two dates ** 
* / 
private int differenceDay (String day1, String day2) {
try {
DateFormat dateFormat = new SimpleDateFormat ("yyyy-MM-dd"); 
Date date1 = dateFormat.parse (day1); 
Date date2 = dateFormat.parse (day2); 
return (int) ((date2.getTime () - date1.getTime ()) / 1000/60/60/24); 
} Catch (ParseException e) {
return -10086; 
} 

} 

@ Override 
public boolean onPrepareOptionsMenu (Menu menu) {
if (dialog == null) {
dialog = new Dialog (this); 
dialog.setTitle ("Share"); 
dialog.show (); 
View layout = getLayoutInflater () inflate (R.layout.share, null);. 
dialog.setContentView (layout); 
layout.findViewById (R.id.imageview_qqshare) 
. SetOnClickListener (this); 
layout.findViewById (R.id.imageview_weixinshare). setOnClickListener (
this); 
layout.findViewById (R.id.imageview_weiboshare). setOnClickListener (
this); 
} Else {
dialog.show (); 
} 
return super.onPrepareOptionsMenu (menu); 
} 

@ Override 
public void onClick (View v) {
dialog.dismiss (); 
shootScreen (); 
Toast.makeText (
this, 
"Screenshot success has been saved to:" + Environment.getExternalStorageDirectory () + "/" 
+ CurrentDay + ". Jpg", Toast.LENGTH_SHORT) show ();. 
switch (v.getId ()) {
case R.id.imageview_qqshare: 

break; 
case R.id.imageview_weixinshare: 

break; 
case R.id.imageview_weiboshare: 
Intent intent = new Intent (Intent.ACTION_SEND); 

/ / Intent.setType ("text / plain"); 
intent.setType ("image / jpeg"); 
/ / Intent.putExtra (Intent.EXTRA_SUBJECT, "sharing"); 
/ / Intent.putExtra (Intent.EXTRA_TEXT, 
/ / "I would like to share this with you ..."); 
Uri uri = Uri.parse (Environment.getExternalStorageDirectory () + "/" 
+ CurrentDay + ". Jpg"); 
intent.putExtra (Intent.EXTRA_STREAM, uri); 
startActivity (intent); 
break; 

default: 
break; 
} 
} 
Bitmap bitmap1 = null; 

/ ** 
* Screenshot 
* / 
private void shootScreen () {
View view = getWindow () getDecorView ();. 
view.setDrawingCacheEnabled (true); 
view.buildDrawingCache (); 
Bitmap b1 = view.getDrawingCache (); 
Bitmap bitmap = Bitmap.createBitmap (b1, 0, 0, b1.getWidth (), 
b1.getHeight ()); 
bitmap1 = bitmap; 
view.destroyDrawingCache (); 

try {
OutputStream outputStream = new FileOutputStream (
Environment.getExternalStorageDirectory () + "/" 
+ CurrentDay + ". Jpg"); 
bitmap.compress (CompressFormat.PNG, 100, outputStream); 
outputStream.flush (); 
outputStream.close (); 
} Catch (Exception e) {
e.printStackTrace (); 
} 
} 
} 

Reply:

 package com.siyehuazhilian.fragment; 

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.lang.reflect.Field; 

import android.content.res.Resources; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.util.DisplayMetrics; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.view.ViewGroup; 
import android.view.animation.AlphaAnimation; 
import android.view.animation.Animation; 
import android.widget.ImageView; 
import android.widget.LinearLayout; 
import android.widget.TextView; 

import com.siyehuazhilian.nextday.R; 
import com.siyehuazhilian.utils.DownRescoureces; 

public class ViewPagerAdatperFragment extends Fragment {
private View layoutinflater; 
/ / Background image 
private ImageView imageView; 
/ / Characters Description 
private TextView largeSize; 
/ / Small print instructions 
private TextView smallSize; 
/ / Date 
private TextView monthTextView, yearTextView, weekTextView, dateTextView; 
/ / 
private LinearLayout dateLayout, informationLayout; 
/ / Hide picture factor of 0 means into the front, hiding other controls, 1 put the final surface, does not hide other controls 
private int hideImage = 0; 

/ / Current time 
private String [] dateStr = new String [6]; 
/ / Current display verse 
private String [] textStr = new String [2]; 

/ / Load the resource object 
private DownRescoureces downRescoureces = new DownRescoureces (); 

public static ViewPagerAdatperFragment newInstance (String [] dateStr) {
ViewPagerAdatperFragment adatperFragment = new ViewPagerAdatperFragment (); 

Bundle bundle = new Bundle (); 
bundle.putString ("week", dateStr [0]); 
bundle.putString ("month", dateStr [1]); 
bundle.putString ("day", dateStr [2]); 
bundle.putString ("year", dateStr [5]); 

adatperFragment.setArguments (bundle); 
return adatperFragment; 
} 

@ Override 
public View onCreateView (LayoutInflater inflater, ViewGroup container, 
Bundle savedInstanceState) {
layoutinflater = inflater.inflate (R.layout.pager_adapter_view, null); 
return layoutinflater; 
} 

@ Override 
public void onActivityCreated (Bundle savedInstanceState) {
super.onActivityCreated (savedInstanceState); 
dateLayout = (LinearLayout) layoutinflater 
. FindViewById (R.id.linerlayout_date); 
informationLayout = (LinearLayout) layoutinflater 
. FindViewById (R.id.linearlayout_information); 
imageView = (ImageView) layoutinflater 
. FindViewById (R.id.imageview_image); 
largeSize = (TextView) layoutinflater 
. FindViewById (R.id.textview_large_size); 
smallSize = (TextView) layoutinflater 
. FindViewById (R.id.textview_small_size); 
monthTextView = (TextView) layoutinflater 
. FindViewById (R.id.textiview_month); 
yearTextView = (TextView) layoutinflater 
. FindViewById (R.id.textiview_year); 
weekTextView = (TextView) layoutinflater 
. FindViewById (R.id.textiview_week); 
dateTextView = (TextView) layoutinflater 
. FindViewById (R.id.textview_day); 

/ / Get the data 
dateStr [0] = getArguments () getString ("week");. 
dateStr [1] = getArguments () getString ("month");. 
dateStr [2] = getArguments () getString ("day");. 
dateStr [5] = getArguments () getString ("year");. 

imageView.setOnClickListener (new OnClickListener () {

@ Override 
public void onClick (View v) {
if (hideImage == 0) {
Animation animation = new AlphaAnimation (1.0f, 0.0f); 
animation.setDuration (3000); 
dateLayout.startAnimation (animation); 
informationLayout.startAnimation (animation); 
dateLayout.setVisibility (View.GONE); 
informationLayout.setVisibility (View.GONE); 
hideImage + +; 
} Else {
Animation animation = new AlphaAnimation (0.0f, 1.0f); 
animation.setDuration (3000); 
dateLayout.startAnimation (animation); 
informationLayout.startAnimation (animation); 
dateLayout.setVisibility (View.VISIBLE); 
informationLayout.setVisibility (View.VISIBLE); 
hideImage -; 
} 
} 
}); 

} 

@ Override 
public void onResume () {
super.onResume (); 
setText (); 
setImage (); 
setDate (); 
} 

/ ** 
* Set Date 
* / 
private void setDate () {
monthTextView.setText (dateStr [1]); 
yearTextView.setText (dateStr [5]); 
weekTextView.setText (dateStr [0]); 
dateTextView.setText (dateStr [2]); 
} 

/ ** 
* Set picture 
* / 
private void setImage () {
int currentDay = Integer.parseInt (dateStr [2]); 
Field [] fields = R.drawable.class.getDeclaredFields (); 

try {
DisplayMetrics display = new DisplayMetrics (); 
getActivity (). getWindowManager (). getDefaultDisplay () 
. GetMetrics (display); 
int width = display.widthPixels; 
int height = display.heightPixels; 
imageView.setImageBitmap (optimizeBitmap (getResources (), 
fields [currentDay - 1]. getInt (R.drawable.class), width, 
height)); 
} Catch (IllegalArgumentException e) {
e.printStackTrace (); 
} Catch (IllegalAccessException e) {
e.printStackTrace (); 
} 
} 

/ ** 
* Reading the image 
* / 
public Bitmap optimizeBitmap (Resources resources, int drawableID, 
int maxWidth, int maxHeight) {
Bitmap result = null; 
/ / Image configuration object that can be configured to obtain the number of pixel image loaded 
BitmapFactory.Options options = new BitmapFactory.Options (); 
/ / Represents the original image width and height 
 loadoptions.inJustDecodeBounds = true; 
result = BitmapFactory.decodeResource (resources, drawableID, options); 
/ / Math.ceil retrieves its nearest integer (up values ​​such as: 4.1-> 5 4.9-> 5) 
int widthRatio = (int) Math.ceil (options.outWidth / maxWidth); 
int heightRatio = (int) Math.ceil (options.outHeight / maxHeight); 

options.inSampleSize = 1; 
Pixel ratio / / set the final loading, which means that the final number of pixels displayed is the total number of 
if (widthRatio> 1 | | heightRatio> 1) {
if (widthRatio> heightRatio) {
options.inSampleSize = widthRatio; 
} Else {
options.inSampleSize = heightRatio; 
} 
} 
/ / Decoding pixel mode, this mode can be taken directly in accordance with the pixel 
 configuration optionsoptions.inJustDecodeBounds = false; 
result = BitmapFactory.decodeResource (resources, drawableID, options); 
return result; 
} 

/ ** 
* Set the text 
* 
* / 
private void setText () {
try {
InputStream inputStream = getResources (). GetAssets () 
. Open ("100.txt"); 
BufferedReader bufferedReader = new BufferedReader (
new InputStreamReader (inputStream, "gb2312")); 
int currentDay = Integer.parseInt (dateStr [2]); 
String tmp = ""; 
for (int i = 0; i tmp = bufferedReader.readLine (); 
} 
textStr = tmp.split ("-"); 
largeSize.setText (textStr [1]); 
smallSize.setText (textStr [0]); 
smallSize.setSelected (true); 
} Catch (IOException e) {
e.printStackTrace (); 
} 
} 

}