跳过了49帧！应用程序可能在主线程上做了太多的工作
在我的viewpager实现中，我正在充气Views（而不是fragments）。我的主要类扩展了Activity。\n当我尝试在我的应用程序中滑动屏幕时，我遇到了这个错误，它显示在CustomPagerAdapter.java的第47行：\n以及\n01-04 16:44:35.5278614-8614/com.parsizabanan.app W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x4195ee48)\n01-04 16:44:35.5278614-8614/com.parsizabanan.app E/AndroidRuntime﹕ FatAL EXCEPTION: main\nProcess: com.parsizabanan.app, PID: 8614\nandroid.view.InflateException: Binary XML file line #6: Error inflating class \nat android.view.LayoutInflater.createView(LayoutInflater.java:620)\nat com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInfl ater.java:56)\nat android.view.LayoutInflater.onCreateView(LayoutInflater.java:669)\nat android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694)\nat android.view.LayoutInflater.rInflate(LayoutInflater.java:755)\nat android.view.LayoutInflater.inflate(LayoutInflater.java:492)\nat android.view.LayoutInflater.inflate(LayoutInflater.java:397)\nat android.view.LayoutInflater.inflate(LayoutInflater.java:353)\nat com.parsizabanan.app.CustomPagerAdapter.instantiateItem(CustomPagerAdapter.java:47)\nat android.support.v4.view.PagerAdapter.instantiateItem(PagerAdapter.java:110)\nat android.support.v4.view.ViewPager.addNewItem(ViewPager.java:837)\nat android.support.v4.view.ViewPager.populate(ViewPager.java:1021)\nat android.support.v4.view.ViewPager.populate(ViewPager.java:919)\nat android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441)\nat android.view.View.measure(View.java:16574)\nat android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)\nat android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140)\nat android.widget.FrameLayout.onMeasure(FrameLayout.java:310)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140)\nat android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1406)\nat android.widget.LinearLayout.measureVertical(LinearLayout.java:697)\nat android.widget.LinearLayout.onMeasure(LinearLayout.java:590)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140)\nat android.widget.FrameLayout.onMeasure(FrameLayout.java:310)\nat com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2421)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1955)\nat android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1151)\nat android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1333)\nat android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1038)\nat android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5890)\nat android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)\nat android.view.Choreographer.doCallbacks(Choreographer.java:574)\nat android.view.Choreographer.doFrame(Choreographer.java:544)\nat android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)\nat android.os.Handler.handleCallback(Handler.java:733)\nat android.os.Handler.dispatchMessage(Handler.java:95)\nat android.os.Looper.loop(Looper.java:136)\nat android.app.ActivityThread.main(ActivityThread.java:5118)\nat java.lang.reflect.Method.invokeNative(Native Method)\nat java.lang.reflect.Method.invoke(Method.java:515)\nat com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)\nat com.android.internal.os.ZygoteInit.main(ZygoteInit.java:610)\nat dalvik.system.NativeStart.main(Native Method)\nCaused by: java.lang.reflect.InvocationTargetException\nat java.lang.reflect.Constructor.constructNative(Native Method)\nat java.lang.reflect.Constructor.newInstance(Constructor.java:423)\nat android.view.LayoutInflater.createView(LayoutInflater.java:594)\nat com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInfl ater.java:56)\nat android.view.LayoutInflater.onCreateView(LayoutInflater.java:669)\nat android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694)\nat android.view.LayoutInflater.rInflate(LayoutInflater.java:755)\nat android.view.LayoutInflater.inflate(LayoutInflater.java:492)\nat android.view.LayoutInflater.inflate(LayoutInflater.java:397)\nat android.view.LayoutInflater.inflate(LayoutInflater.java:353)\nat com.parsizabanan.app.CustomPagerAdapter.instantiateItem(CustomPagerAdapter.java:47)\nat android.support.v4.view.PagerAdapter.instantiateItem(PagerAdapter.java:110)\nat android.support.v4.view.ViewPager.addNewItem(ViewPager.java:837)\nat android.support.v4.view.ViewPager.populate(ViewPager.java:1021)\nat android.support.v4.view.ViewPager.populate(ViewPager.java:919)\nat android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441)\nat android.view.View.measure(View.java:16574)\nat android.widget.RelativeLayout.measureChildHorizontal(Rel ativeLayout.java:719)\nat android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140)\nat android.widget.FrameLayout.onMeasure(FrameLayout.java:310)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140)\nat android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1406)\nat android.widget.LinearLayout.measureVertical(LinearLayout.java:697)\nat android.widget.LinearLayout.onMeasure(LinearLayout.java:590)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5140)\nat android.widget.FrameLayout.onMeasure(FrameLayout.java:310)\nat com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2421)\nat android.view.View.measure(View.java:16574)\nat android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1955)\nat android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1151)\nat android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1333)\nat android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1038)\nat android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5890)\nat android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)\nat android.view.Choreographer.doCallbacks(Choreographer.java:574)\nat android.view.Choreographer.doFrame(Choreographer.java:544)\nat android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)\nat android.os.Handler.handleCallback(Handler.java:733)\nat android.os.Handler.dispatchMessage(Handler.java:95)\nat android.os.Looper.loop(Looper.java:136)\nat android.app.ActivityThread.main(ActivityThread.java:5118)\nat java.lang.reflect.Method.invokeNative(Native Method)\nat java.lang.reflect.Method.invoke(Method.java:515)\nat com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)\nat com.android.internal.os.ZygoteInit.main(ZygoteInit.java:610)\nat dalvik.system.NativeStart.main(Native Method)\nCaused by: java.lang.OutOfMemoryError\nat android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)\nat android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:587)\nat android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:422)\nat android.graphics.drawable.Drawable.cre ateFromResourceStream(Drawable.java:840)\nat android.content.res.Resources.loadDrawable(Resources.java:2150)\n\nCustomPagerAdapter:\n
public class CustomPagerAdapter extends PagerAdapter {
public Object instantiateItem(View collection, int position) {
LayoutInflater inflater = (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 saveState() {
return null;
}
@Override
public int getCount() {
return 6;
}
\nMyActivity:\n
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, float 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();
}
});
}
\n并且这是lab layout：\n
