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저는 Android 프로그래밍에 익숙하지 않습니다. 나는 안드로이드 애플 리케이션을 개발하고있다. DashboardGridActivity는 주요 활동입니다. 이 활동은이 앱을 실행하는 데 필요한 그리드보기를 표시해야합니다. 내 응용 프로그램에서 되는 다음 파일을32 프레임을 건너 뜁니다! 응용 프로그램이 주 스레드에서 너무 많은 작업을 수행 한 후 치명적인 예외 일 수 있습니다. 주
DashboardGridActivity :
public class DashboardGridActivity extends Activity {
GridView myDashboard;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dashboard_grid);
myDashboard = (GridView)findViewById(R.id.dashboard);
myDashboard.setAdapter(new DashboardAdapter(this));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.dashboard_grid, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
class ViewHolder
{
ImageView myItem;
ViewHolder(View v)
{
myItem = (ImageView) v.findViewById(R.id.imageView1);
}
}
class DashboardItems
{
int imageID;
String itemName;
DashboardItems(int imageID, String itemName)
{
this. imageID=imageID;
this.itemName= itemName;
}
}
class DashboardAdapter extends BaseAdapter
{
ArrayList<DashboardItems> dashboardImages;
Context context;
DashboardAdapter(Context context)
{
dashboardImages = new ArrayList<DashboardItems>();
Resources res = context.getResources();
String[] tempDashItems = res.getStringArray(R.array.dashboard_names);
int[] dashImages = {R.drawable.apartments, R.drawable.atms, R.drawable.banks, R.drawable.book_stores, R.drawable.car_rentals, R.drawable.furniture_shops, R.drawable.gas_stations, R.drawable.gyms, R.drawable.malls, R.drawable.mobile_shops, R.drawable.pharmacy, R.drawable.pizza_places, R.drawable.postal_services, R.drawable.restaurants, R.drawable.subs_burgers, R.drawable.supermarkets, R.drawable.theatres};
for(int i=0;i<10;i++)
{
DashboardItems tempDash = new DashboardItems(dashImages[i],tempDashItems[i]);
dashboardImages.add(tempDash);
}
}
@Override
public int getCount() {
return dashboardImages.size();
}
@Override
public Object getItem(int i) {
return dashboardImages.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
View row= view;
ViewHolder holder = null;
if(row==null)
{
LayoutInflater inflater =(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.single_item, viewGroup, false);
holder=new ViewHolder(row);
row.setTag(holder);
}
else
{
holder = (ViewHolder) row.getTag();
}
DashboardItems temp = dashboardImages.get(i);
holder.myItem.setImageResource(temp.imageID);
return row;
}
}
ativity_dashboard_grid.xml :
<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context="asm.offcampusresources.app.OffCampusResourcesActivity">
<GridView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/dashboard"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentLeft="true"
android:layout_alignParentBottom="true"
android:numColumns="auto_fit"
android:horizontalSpacing="10dp"
android:verticalSpacing="10dp"
android:columnWidth="120dp"
android:stretchMode="spacingWidthUniform"/>
</RelativeLayout>
single_item.xml :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:contentDescription="@string/desc"/>
</RelativeLayout>
내가 이것을 실행하려고 에뮬레이터에서 메시지를 보냅니다. "불행히도 DashboardGridActivity에는 stopp가 있습니다. 로그 캣에서
나는 다음과 같은 메시지를 얻을 "작업 에드 :04-10 20:53:37.901: I/Choreographer(1144): Skipped 32 frames! The application may be doing too much work on its main thread.
04-10 20:53:38.031: D/AndroidRuntime(1144): Shutting down VM
04-10 20:53:38.031: W/dalvikvm(1144): threadid=1: thread exiting with uncaught exception (group=0xb2a2dba8)
04-10 20:53:38.291: D/dalvikvm(1144): GC_FOR_ALLOC freed 76K, 5% free 3131K/3280K, paused 108ms, total 109ms
04-10 20:53:38.301: E/AndroidRuntime(1144): FATAL EXCEPTION: main
04-10 20:53:38.301: E/AndroidRuntime(1144): Process: asm.offcampusresdemo, PID: 1144
04-10 20:53:38.301: E/AndroidRuntime(1144): java.lang.NullPointerException
04-10 20:53:38.301: E/AndroidRuntime(1144): at asm.offcampusresdemo.DashboardAdapter.getView(DashboardGridActivity.java:118)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.widget.AbsListView.obtainView(AbsListView.java:2263)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.widget.GridView.onMeasure(GridView.java:1044)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.View.measure(View.java:16497)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.View.measure(View.java:16497)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.View.measure(View.java:16497)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-10 20:53:38.301: E/AndroidRuntime(1144): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.View.measure(View.java:16497)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
04-10 20:53:38.301: E/AndroidRuntime(1144): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.View.measure(View.java:16497)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.Choreographer.doFrame(Choreographer.java:544)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.os.Handler.handleCallback(Handler.java:733)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.os.Handler.dispatchMessage(Handler.java:95)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.os.Looper.loop(Looper.java:136)
04-10 20:53:38.301: E/AndroidRuntime(1144): at android.app.ActivityThread.main(ActivityThread.java:5017)
04-10 20:53:38.301: E/AndroidRuntime(1144): at java.lang.reflect.Method.invokeNative(Native Method)
04-10 20:53:38.301: E/AndroidRuntime(1144): at java.lang.reflect.Method.invoke(Method.java:515)
04-10 20:53:38.301: E/AndroidRuntime(1144): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
04-10 20:53:38.301: E/AndroidRuntime(1144): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
04-10 20:53:38.301: E/AndroidRuntime(1144): at dalvik.system.NativeStart.main(Native Method)
04-10 20:53:53.171: I/Process(1144): Sending signal. PID: 1144 SIG: 9
04-10 20:54:03.361: D/AndroidRuntime(1169): Shutting down VM
04-10 20:54:03.361: W/dalvikvm(1169): threadid=1: thread exiting with uncaught exception (group=0xb2a2dba8)
04-10 20:54:03.471: D/dalvikvm(1169): GC_FOR_ALLOC freed 79K, 5% free 3131K/3284K, paused 40ms, total 43ms
04-10 20:54:03.481: E/AndroidRuntime(1169): FATAL EXCEPTION: main
04-10 20:54:03.481: E/AndroidRuntime(1169): Process: asm.offcampusresdemo, PID: 1169
04-10 20:54:03.481: E/AndroidRuntime(1169): java.lang.NullPointerException
04-10 20:54:03.481: E/AndroidRuntime(1169): at asm.offcampusresdemo.DashboardAdapter.getView(DashboardGridActivity.java:118)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.widget.AbsListView.obtainView(AbsListView.java:2263)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.widget.GridView.onMeasure(GridView.java:1044)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.View.measure(View.java:16497)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.View.measure(View.java:16497)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.View.measure(View.java:16497)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-10 20:54:03.481: E/AndroidRuntime(1169): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.View.measure(View.java:16497)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
04-10 20:54:03.481: E/AndroidRuntime(1169): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.View.measure(View.java:16497)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.Choreographer.doFrame(Choreographer.java:544)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.os.Handler.handleCallback(Handler.java:733)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.os.Handler.dispatchMessage(Handler.java:95)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.os.Looper.loop(Looper.java:136)
04-10 20:54:03.481: E/AndroidRuntime(1169): at android.app.ActivityThread.main(ActivityThread.java:5017)
04-10 20:54:03.481: E/AndroidRuntime(1169): at java.lang.reflect.Method.invokeNative(Native Method)
04-10 20:54:03.481: E/AndroidRuntime(1169): at java.lang.reflect.Method.invoke(Method.java:515)
04-10 20:54:03.481: E/AndroidRuntime(1169): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
04-10 20:54:03.481: E/AndroidRuntime(1169): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
04-10 20:54:03.481: E/AndroidRuntime(1169): at dalvik.system.NativeStart.main(Native Method)
04-10 20:54:06.321: I/Process(1169): Sending signal. PID: 1169 SIG: 9
는 방법 DashboardAdapter이 문제
... 및 기타 섹션 표시 LogCat - 가장 중요한 부분을 자릅니다. – panini
@panini : 질문을 수정했습니다. – Akshay