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Missed 49 frames! An application can do too much work on its main thread

I am inflating views (not fragments) in my viewpager implementation. My main class extends Activity. I encounter this error when I try to scroll the screen from my application or

at com.example.app.CustomPagerAdapter.instantiateItem(CustomPagerAdapter.java:47)

and

 01-04 16:44:35.5278614-8614/com.parsizabanan.app W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x4195ee48) 01-04 16:44:35.5278614-8614/com.parsizabanan.app E/AndroidRuntime﹕ FatAL EXCEPTION: main Process: com.parsizabanan.app, PID: 8614 android.view.InflateException: Binary XML file line #6: Error inflating class <unknown> at android.view.LayoutInflater.createView(LayoutInflater.java:620) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInfl ater.java:56) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694) at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:397) at android.view.LayoutInflater.inflate(LayoutInflater.java:353) at com.parsizabanan.app.CustomPagerAdapter.instantiateItem(CustomPagerAdapter.java:47) at android.support.v4.view.PagerAdapter.instantiateItem(PagerAdapter.java:110) at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:837) at android.support.v4.view.ViewPager.populate(ViewPager.java:1021) at android.support.v4.view.ViewPager.populate(ViewPager.java:919) at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441) at android.view.View.measure(View.java:16574) at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455) at android.view.View.measure(View.java:16574) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at android.view.View.measure(View.java:16574) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1406) at android.widget.LinearLayout.measureVertical(LinearLayout.java:697) at android.widget.LinearLayout.onMeasure(LinearLayout.java:590) at android.view.View.measure(View.java:16574) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2421) at android.view.View.measure(View.java:16574) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1955) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1151) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1333) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1038) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5890) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761) at android.view.Choreographer.doCallbacks(Choreographer.java:574) at android.view.Choreographer.doFrame(Choreographer.java:544) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5118) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:610) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.constructNative(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at android.view.LayoutInflater.createView(LayoutInflater.java:594) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInfl ater.java:56) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694) at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:397) at android.view.LayoutInflater.inflate(LayoutInflater.java:353) at com.parsizabanan.app.CustomPagerAdapter.instantiateItem(CustomPagerAdapter.java:47) at android.support.v4.view.PagerAdapter.instantiateItem(PagerAdapter.java:110) at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:837) at android.support.v4.view.ViewPager.populate(ViewPager.java:1021) at android.support.v4.view.ViewPager.populate(ViewPager.java:919) at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441) at android.view.View.measure(View.java:16574) at android.widget.RelativeLayout.measureChildHorizontal(Rel ativeLayout.java:719) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455) at android.view.View.measure(View.java:16574) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at android.view.View.measure(View.java:16574) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1406) at android.widget.LinearLayout.measureVertical(LinearLayout.java:697) at android.widget.LinearLayout.onMeasure(LinearLayout.java:590) at android.view.View.measure(View.java:16574) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2421) at android.view.View.measure(View.java:16574) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1955) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1151) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1333) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1038) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5890) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761) at android.view.Choreographer.doCallbacks(Choreographer.java:574) at android.view.Choreographer.doFrame(Choreographer.java:544) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5118) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:610) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.OutOfMemoryError at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:587) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:422) at android.graphics.drawable.Drawable.cre ateFromResourceStream(Drawable.java:840) at android.content.res.Resources.loadDrawable(Resources.java:2150)

CustomPagerAdapter:

 public class CustomPagerAdapter extends PagerAdapter { public Object instantiateItem(View collection, int position) { LayoutInflaterinflater = (LayoutInflater) collection.getContext() .getSystemService(Context.LAYOUT_INFLatER_SERVICE); int resId = 0; switch (position) { case 0: { resId = R.layout.lab; break; } case 1: { resId = R.layout.lab; break; } case 2: { resId = R.layout.etela; break; } case 3: { resId = R.layout.ticket; break; } case 4: { resId = R.layout.product; break; } case 5: { resId = R.layout.about; break; } } View view = inflater.inflate(resId, null); ((ViewPager) collection).addView(view, 0); return view; } @Override public void destroyItem(View arg0, int arg1, Object arg2) { ((ViewPager) arg0).removeView((View) arg2); } @Override public boolean isViewFromObject(View arg0, Object arg1) { return arg0 == ((View) arg1); } @Override public Parcelable saveSt ate() { return null; } @Override public int getCount() { return 6; }

MyActivity:

 public class MyActivity extends Activity { ViewPager myPager = null; ImageButton contact = null; ImageButton about = null; ImageButton lab = null; ImageButton product = null; ImageButton ticket = null; ImageButton etela = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); CustomPagerAdapter adapter = new CustomPagerAdapter(); myPager = (ViewPager) findViewById(R.id.customviewpager); myPager.setAdapter(adapter); myPager.setCurrentItem(5); myPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { public void onPageScrolled(int i, flo at v, int i2) { } public void onPageSelected(int i) { } public void onPageScrollStateChanged(int i) { Thread t1 = new Thread(new Runnable() { @Override public void run() { switch (myPager.getCurrentItem()) { case 0: break; case 1: break; case 2: break; case 3: break; case 4: break; case 5: break; } } }); t1.start(); } }); }

and this is a laboratory layout:

 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/lab1"/> </LinearLayout>
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1 answer

Using large images may result in this error. Its highly recommended that you reduce the size of your images and then upload them to ImageViews.

There is also another way to request android to give your application more memory by adding the following to the manifest. But this is not recommended. For more information see here and here .

 <application ... android:largeHeap="true" ... > ... </application>
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Source: https://habr.com/ru/post/980492/

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