getDrawablesList()タイトルのとおり、電話をかけようとするとこのエラーが発生setupUI()し、ImageSectionFragment().
getDrawablesList()呼び出されsetupUI()た別のプロジェクトでテストされ、onCreate()完全に正常に機能しました。
私は、私がここでそれらをどのように呼んでいるかに関係があると思いますFragmentActivity.
どんな助けでも大歓迎です。
public class MainActivity extends FragmentActivity {
SectionsPagerAdapter mSectionsPagerAdapter;
ViewPager mViewPager;
public String SERVERIP;
private TCPClient mTcpClient;
private ArrayList<String> arrayList;
private ImageView selectedImageView;
private ImageView leftArrowImageView;
private ImageView rightArrowImageView;
private Gallery gallery;
private int selectedImagePosition = 0;
private List<Drawable> drawables;
private GalleryImageAdapter galImageAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main_page);
arrayList = new ArrayList<String>();
Bundle extras = getIntent().getExtras();
SERVERIP = extras.getString("key");
// Create the adapter that will return a fragment for each of the three
// primary sections of the app.
mSectionsPagerAdapter = new SectionsPagerAdapter(
getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
if (SERVERIP == "null") {
Log.d("MainActivity.java", "Continue without connection selected");
}
else {
new connectTask().execute("");
}
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a DummySectionFragment (defined as a static inner class
// below) with the page number as its lone argument.
/*
* Fragment fragment = new DummySectionFragment(); Bundle args = new
* Bundle(); args.putInt(DummySectionFragment.ARG_SECTION_NUMBER,
* position + 1); fragment.setArguments(args); return fragment;
*/
Fragment fragment = new Fragment();
if (position == 0) {
fragment = new DummySectionFragment();
}
else if (position == 1) {
fragment = new ImageSectionFragment();
}
return fragment;
}
@Override
public int getCount() {
// Show 3 total pages.
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
/**
* A dummy fragment representing a section of the app, but that simply
* displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public DummySectionFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_textpage,
container, false);
return rootView;
}
}
public static class ImageSectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
MainActivity ma = new MainActivity();
public ImageSectionFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_imagepage,container, false);
ma.getDrawablesList();
ma.setupUI();
return rootView;
}
}
private void setupUI() {
selectedImageView = (ImageView) findViewById(R.id.selected_imageview);
leftArrowImageView = (ImageView) findViewById(R.id.left_arrow_imageview);
rightArrowImageView = (ImageView) findViewById(R.id.right_arrow_imageview);
gallery = (Gallery) findViewById(R.id.gallery);
leftArrowImageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (selectedImagePosition > 0) {
--selectedImagePosition;
}
gallery.setSelection(selectedImagePosition, false);
}
});
rightArrowImageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (selectedImagePosition < drawables.size() - 1) {
++selectedImagePosition;
}
gallery.setSelection(selectedImagePosition, false);
}
});
gallery.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
selectedImagePosition = pos;
if (selectedImagePosition > 0 && selectedImagePosition < drawables.size() - 1) {
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
} else if (selectedImagePosition == 0) {
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_disabled));
} else if (selectedImagePosition == drawables.size() - 1) {
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
changeBorderForSelectedImage(selectedImagePosition);
setSelectedImage(selectedImagePosition);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
galImageAdapter = new GalleryImageAdapter(this, drawables);
gallery.setAdapter(galImageAdapter);
if (drawables.size() > 0) {
gallery.setSelection(selectedImagePosition, false);
}
if (drawables.size() == 1) {
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
}
private void changeBorderForSelectedImage(int selectedItemPos) {
int count = gallery.getChildCount();
for (int i = 0; i < count; i++) {
ImageView imageView = (ImageView) gallery.getChildAt(i);
imageView.setBackgroundDrawable(getResources().getDrawable(R.drawable.image_border));
imageView.setPadding(3, 3, 3, 3);
}
ImageView imageView = (ImageView) gallery.getSelectedView();
imageView.setBackgroundDrawable(getResources().getDrawable(R.drawable.selected_image_border));
imageView.setPadding(3, 3, 3, 3);
}
private void getDrawablesList() {
drawables = new ArrayList<Drawable>();
drawables.add(getResources().getDrawable(R.drawable.natureimage1));
drawables.add(getResources().getDrawable(R.drawable.natureimage2));
drawables.add(getResources().getDrawable(R.drawable.natureimage3));
drawables.add(getResources().getDrawable(R.drawable.natureimage4));
drawables.add(getResources().getDrawable(R.drawable.natureimage5));
drawables.add(getResources().getDrawable(R.drawable.natureimage6));
drawables.add(getResources().getDrawable(R.drawable.natureimage7));
drawables.add(getResources().getDrawable(R.drawable.natureimage8));
drawables.add(getResources().getDrawable(R.drawable.natureimage9));
drawables.add(getResources().getDrawable(R.drawable.natureimage10));
drawables.add(getResources().getDrawable(R.drawable.natureimage11));
drawables.add(getResources().getDrawable(R.drawable.natureimage12));
drawables.add(getResources().getDrawable(R.drawable.natureimage13));
drawables.add(getResources().getDrawable(R.drawable.natureimage14));
drawables.add(getResources().getDrawable(R.drawable.natureimage15));
}
private void setSelectedImage(int selectedImagePosition) {
BitmapDrawable bd = (BitmapDrawable) drawables.get(selectedImagePosition);
Bitmap b = Bitmap.createScaledBitmap(bd.getBitmap(), (int) (bd.getIntrinsicHeight() * 0.9), (int) (bd.getIntrinsicWidth() * 0.7), false);
selectedImageView.setImageBitmap(b);
selectedImageView.setScaleType(ScaleType.FIT_XY);
}
public class connectTask extends AsyncTask<String, String, TCPClient> {
@Override
protected TCPClient doInBackground(String... message) {
// we create a TCPClient object and
mTcpClient = new TCPClient(new TCPClient.OnMessageReceived() {
@Override
// here the messageReceived method is implemented
public void messageReceived(String message) {
// this method calls the onProgressUpdate
publishProgress(message);
}
});
mTcpClient.run(SERVERIP);
return null;
}
@Override
protected void onProgressUpdate(String... values) {
super.onProgressUpdate(values);
// in the arrayList we add the messaged received from server
arrayList.add(values[0]);
// notify the adapter that the data set has changed. This means that
// new message received
// from server was added to the list
}
}
}
ここにログキャットがあります
07-16 14:21:48.664: E/AndroidRuntime(26188): FATAL EXCEPTION: main
07-16 14:21:48.664: E/AndroidRuntime(26188): java.lang.NullPointerException
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.content.ContextWrapper.getResources(ContextWrapper.java:81)
07-16 14:21:48.664: E/AndroidRuntime(26188): at com.fypj.mdm.MainActivity.getDrawablesList(MainActivity.java:273)
07-16 14:21:48.664: E/AndroidRuntime(26188): at com.fypj.mdm.MainActivity.access$0(MainActivity.java:270)
07-16 14:21:48.664: E/AndroidRuntime(26188): at com.fypj.mdm.MainActivity$ImageSectionFragment.onCreateView(MainActivity.java:160)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.view.ViewPager.populate(ViewPager.java:1064)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.view.ViewPager.populate(ViewPager.java:911)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1432)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.View.measure(View.java:15481)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5107)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.View.measure(View.java:15481)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.widget.LinearLayout.measureVertical(LinearLayout.java:833)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.widget.LinearLayout.onMeasure(LinearLayout.java:574)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.View.measure(View.java:15481)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5107)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
07-16 14:21:48.664: E/AndroidRuntime(26188): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2361)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.View.measure(View.java:15481)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1999)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1238)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1413)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1131)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4611)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.Choreographer.doCallbacks(Choreographer.java:555)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.Choreographer.doFrame(Choreographer.java:525)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.os.Handler.handleCallback(Handler.java:615)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.os.Handler.dispatchMessage(Handler.java:92)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.os.Looper.loop(Looper.java:137)
07-16 14:21:48.664: E/AndroidRuntime(26188): at android.app.ActivityThread.main(ActivityThread.java:4898)
07-16 14:21:48.664: E/AndroidRuntime(26188): at java.lang.reflect.Method.invokeNative(Native Method)
07-16 14:21:48.664: E/AndroidRuntime(26188): at java.lang.reflect.Method.invoke(Method.java:511)
07-16 14:21:48.664: E/AndroidRuntime(26188): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008)
07-16 14:21:48.664: E/AndroidRuntime(26188): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775)
07-16 14:21:48.664: E/AndroidRuntime(26188): at dalvik.system.NativeStart.main(Native Method)