项目上有多个布局项目更改的Listview会移出屏幕
HI all,im trying a develop a sms app from scratch(smsdroid as my reference) . Basically i have Viewpager which shows the conversation list in a a fragment. The fragment has a listview in it. The list view adapter has two different layouts to show sender's and receivers separately. My listview adapter extends Resource cursor adapter.Everything is working well when the app loads.Now in to the problem the image of the receiver is get replaced by the image of the sender on scrolling the listview. Can some one suggest me a way to overcome this problem? 
滚动后，列表如下所示
我已经阅读了关于listview视图重新编写的内容，但是坦白说我完全不理解它。
这是listview的消息适配器
public class MessageAdapter extends ResourceCursorAdapter {
ViewHolder holder;
private static final String WHERE = "("
+ Message.PROJECTION_JOIN[Message.INDEX_TYPE] + " != "
+ Message.SMS_DRAFT + " OR "
+ Message.PROJECTION_JOIN[Message.INDEX_TYPE] + " IS NULL)";
/** WHERE clause for drafts. */
private static final String WHERE_DRAFT = "("
+ Message.PROJECTION_SMS[Message.INDEX_THREADID] + " = ? AND "
+ Message.PROJECTION_SMS[Message.INDEX_TYPE] + " = "
+ Message.SMS_DRAFT + ")";
// + " OR " + type + " = " + Message.SMS_PENDING;
String sssssss;
Contact globalcontact;
private int mLayout;
Uri uri;
public static AnimationDrawable AniFrame;
public static boolean enableHangoutAnimation=false;
public MessageAdapter(Activity _context, Uri uri) {
super(_context, R.layout.testmessage_classic_received, getCursor(
_context.getContentResolver(), uri), true);
this.defaultContactAvatar = _context.getResources().getDrawable(
R.drawable.default_avatar);
this.ownerAvatar = _context.getResources().getDrawable(
R.drawable.bubble_orange_right);
this.backgroundDrawableIn = PreferencesActivity.getBubblesIn(_context);
this.backgroundDrawableOut = PreferencesActivity
.getBubblesOut(_context);
this.textSize = PreferencesActivity.getTextsize(_context);
this.textColor = PreferencesActivity.getTextcolor(_context);
this.convertNCR = PreferencesActivity.decodeDecimalNCR(_context);
context = _context;
this.uri = uri;
if (uri == null || uri.getLastPathSegment() == null) {
this.threadId = -1;
} else {
this.threadId = Integer.parseInt(uri.getLastPathSegment());
}
Conversation conv = Conversation.getConversation(context,
this.threadId, false);
if (conv == null) {
this.address = null;
this.name = null;
this.displayName = null;
} else {
contact = conv.getContact();
this.address = contact.getNumber();
this.name = contact.getName();
this.displayName = contact.getDisplayName();
}
}
@Override
public int getViewTypeCount() {
return 2;
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowType = getItemViewType(cursor.getPosition());
if (rowType == 0) {
return mInflater.inflate(R.layout.testmessage_classic_sent, parent,
false);
} else if (rowType == 1) {
return mInflater.inflate(R.layout.testmessage_classic_received,
parent, false);
} else {
return null;
}
}
@Override
public int getItemViewType(int position) {
Cursor c = (Cursor) getItem(position);
Message m = Message.getMessage(context, c);
switch (m.getType()) {
case Message.MMS_IN: // 128
return 1;
case Message.MMS_OUT: // 132
return 0;
case Message.SMS_IN: // 2
return 1;
case Message.SMS_OUT: // 1
return 0;
default:
return 0;
}
}
public void setImageView(ImageView contactPhoto) {
mProjection = new String[] { Profile._ID, Profile.DISPLAY_NAME_PRIMARY,
Profile.LOOKUP_KEY, Profile.PHOTO_URI };
mProfileCursor = context.getContentResolver().query(
Profile.CONTENT_URI, mProjection, null, null, null);
if (mProfileCursor.moveToFirst()) {
do {
sssssss = mProfileCursor.getString(mProfileCursor
.getColumnIndex(Profile.PHOTO_URI));
if (sssssss != null) {
Uri photoUri = Uri.parse(sssssss);
contactPhoto.setImageURI(photoUri);
} else {
contactPhoto.setImageResource(R.drawable.ic_launcher);
}
} while (mProfileCursor.moveToNext());
}
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
/**
* checking starts here
*
*/
holder = (ViewHolder) view.getTag();
if (holder == null) {
holder = new ViewHolder();
holder.tvBody = (TextView) view.findViewById(R.id.textBody);
holder.tvDate = (TextView) view.findViewById(R.id.textDate);
// holder.vRead= (View) view.findViewById(R.id.read);
Utilities.setCustomFont(context, holder.tvDate);
Utilities.setCustomFont(context, holder.tvBody);
// holder.tvDate = ( TextView ) view.findViewById( R.id.date );
holder.ivPhoto = (QuickContactBadge) view
.findViewById(R.id.imageContactPicture);
holder.btnDownload = (Button) view
.findViewById(R.id.downloadButton);
holder.media = (ImageView) view.findViewById(R.id.media);
holder.ellipse = (ImageView) view.findViewById(R.id.ellipsis);
AniFrame = (AnimationDrawable) holder.ellipse.getBackground();
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
if (MainActivity.showContactPhoto) {
holder.ivPhoto.setImageDrawable(contact.getAvatar(this.context,
this.defaultContactAvatar));
holder.ivPhoto.setVisibility(View.VISIBLE);
holder.ivPhoto.setOnClickListener(WRAPPER.getQuickContact(
context, holder.ivPhoto,
contact.getLookUpUri(context.getContentResolver()), 2,
null));
if (rowType == 0) {
setImageView(holder.ivPhoto);
} else if (rowType == 1) {
holder.ivPhoto.setImageDrawable(contact.getAvatar(
this.context, this.defaultContactAvatar));
}
} else {
holder.ivPhoto.setVisibility(View.GONE);
}
}
/** View holder. */
public static class ViewHolder {
public static ImageView ellipse;
TextView tvBody;
TextView tvPerson;
TextView tvDate;
ImageView media;
// View vRead;
public View vPending;
public View vLayout;
public ImageView ivInOut;
public Button btnDownload;
public Button btnImport;
QuickContactBadge ivPhoto;
}
/**
* Get the {@link Cursor}.
*
* @param cr
* {@link ContentResolver}
* @param u
* {@link Uri}
* @return {@link Cursor}
*/
private static Cursor getCursor(final ContentResolver cr, final Uri u) {
Log.d(TAG, "getCursor(" + u + ")");
final Cursor[] c = new Cursor[] { null, null };
int tid = -1;
try {
tid = Integer.parseInt(u.getLastPathSegment());
} catch (Exception e) {
Log.e(TAG, "error parsing uri: " + u, e);
}
try {
Log.d(TAG, "where: " + WHERE);
c[0] = cr.query(u, Message.PROJECTION_JOIN, WHERE, null, null);
} catch (NullPointerException e) {
Log.e(TAG, "error query: " + u + " / " + WHERE, e);
c[0] = null;
} catch (SQLiteException e) {
Log.e(TAG, "error getting messages", e);
}
final String[] sel = new String[] { String.valueOf(tid) };
try {
Log.d(TAG, "where: " + WHERE_DRAFT + " / sel: " + sel);
c[1] = cr.query(Uri.parse("content://sms/"),
Message.PROJECTION_SMS, WHERE_DRAFT, sel, Message.SORT_USD);
} catch (NullPointerException e) {
Log.e(TAG, "error query: " + u + " / " + WHERE_DRAFT + " sel: "
+ sel, e);
c[1] = null;
} catch (SQLiteException e) {
Log.e(TAG, "error getting drafts", e);
}
if (c[1] == null || c[1].getCount() == 0) {
return c[0];
}
if (c[0] == null || c[0].getCount() == 0) {
return c[1];
}
return new MergeCursor(c);
}
}
有人可以解释这个问题的根本原因以及解决问题的方法
1 个答案:
答案 0 :(得分：1)
我解决了这个问题，因为有两种不同的布局要充气，我必须使用两个不同的视图。
public class MessageAdapter extends ResourceCursorAdapter {
private static final ContactsWrapper WRAPPER = ContactsWrapper
.getInstance();
/** Cursor's sort. */
// static ViewHolder holder;
int rowType;
public static String SORT = Calls.DATE + " DESC";
private Activity context;
/** {@link BackgroundQueryHandler}. */
// private BackgroundQueryHandler queryHandler;
/** Token for {@link BackgroundQueryHandler}: message list query. */
/** Thread id. */
private int threadId = -1;
/** Address. */
private String address = null;
/** Name. */
private String name = null;
/** Display Name (name if !=null, else address). */
private String displayName = null;
/** Used background drawable for messages. */
private int backgroundDrawableIn, backgroundDrawableOut;
private Cursor origCursor;
private static String TAG = "MessageAdapter";
/** General WHERE clause. */
/** Used text size/color. */
Contact contact;
private int textSize, textColor;
/** Convert NCR. */
private Drawable defaultContactAvatar, ownerAvatar;
private boolean convertNCR;
private Bitmap globalBitmap;
private String contactid26;
private String[] mProjection;
private Cursor mProfileCursor;
String path;
ViewHolder holder,holder1;
private static final String WHERE = "("
+ Message.PROJECTION_JOIN[Message.INDEX_TYPE] + " != "
+ Message.SMS_DRAFT + " OR "
+ Message.PROJECTION_JOIN[Message.INDEX_TYPE] + " IS NULL)";
/** WHERE clause for drafts. */
private static final String WHERE_DRAFT = "("
+ Message.PROJECTION_SMS[Message.INDEX_THREADID] + " = ? AND "
+ Message.PROJECTION_SMS[Message.INDEX_TYPE] + " = "
+ Message.SMS_DRAFT + ")";
// + " OR " + type + " = " + Message.SMS_PENDING;
String sssssss;
Contact globalcontact;
private int mLayout;
Uri uri;
public static AnimationDrawable AniFrame;
public static boolean enableHangoutAnimation=false;
public MessageAdapter(Activity _context, Uri uri) {
super(_context, R.layout.testmessage_classic_received, getCursor(
_context.getContentResolver(), uri), true);
this.defaultContactAvatar = _context.getResources().getDrawable(
R.drawable.default_avatar);
this.ownerAvatar = _context.getResources().getDrawable(
R.drawable.bubble_orange_right);
this.backgroundDrawableIn = PreferencesActivity.getBubblesIn(_context);
this.backgroundDrawableOut = PreferencesActivity
.getBubblesOut(_context);
this.textSize = PreferencesActivity.getTextsize(_context);
this.textColor = PreferencesActivity.getTextcolor(_context);
this.convertNCR = PreferencesActivity.decodeDecimalNCR(_context);
context = _context;
this.uri = uri;
if (uri == null || uri.getLastPathSegment() == null) {
this.threadId = -1;
} else {
this.threadId = Integer.parseInt(uri.getLastPathSegment());
}
Conversation conv = Conversation.getConversation(context,
this.threadId, false);
if (conv == null) {
this.address = null;
this.name = null;
this.displayName = null;
} else {
contact = conv.getContact();
this.address = contact.getNumber();
this.name = contact.getName();
this.displayName = contact.getDisplayName();
}
}
@Override
public int getViewTypeCount() {
return 2;
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowType = getItemViewType(cursor.getPosition());
if (rowType == 0) {
return mInflater.inflate(R.layout.testmessage_classic_sent, parent,
false);
} else if (rowType == 1) {
return mInflater.inflate(R.layout.testmessage_classic_received,
parent, false);
} else {
return null;
}
}
@Override
public int getItemViewType(int position) {
Cursor c = (Cursor) getItem(position);
Message m = Message.getMessage(context, c);
switch (m.getType()) {
case Message.MMS_IN: // 128
return 1;
case Message.MMS_OUT: // 132
return 0;
case Message.SMS_IN: // 2
return 1;
case Message.SMS_OUT: // 1
return 0;
default:
return 0;
}
}
public void setImageView(ImageView contactPhoto) {
mProjection = new String[] { Profile._ID, Profile.DISPLAY_NAME_PRIMARY,
Profile.LOOKUP_KEY, Profile.PHOTO_URI };
mProfileCursor = context.getContentResolver().query(
Profile.CONTENT_URI, mProjection, null, null, null);
if (mProfileCursor.moveToFirst()) {
do {
sssssss = mProfileCursor.getString(mProfileCursor
.getColumnIndex(Profile.PHOTO_URI));
if (sssssss != null) {
Uri photoUri = Uri.parse(sssssss);
contactPhoto.setImageURI(photoUri);
} else {
contactPhoto.setImageResource(R.drawable.ic_launcher);
}
} while (mProfileCursor.moveToNext());
}
}
@Override
public void bindView(View view, final Context context, Cursor cursor) {
/**
* checking starts here
*
*/
int viewType = getItemViewType(cursor.getPosition());
switch(viewType)
{
case 0:
final Message m = Message.getMessage(context, cursor);
holder = (ViewHolder) view.getTag();
if (holder == null) {
holder = new ViewHolder();
holder.tvBody = (TextView) view.findViewById(R.id.textBody);
holder.tvDate = (TextView) view.findViewById(R.id.textDate);
// holder.vRead= (View) view.findViewById(R.id.read);
Utilities.setCustomFont(context, holder.tvDate);
Utilities.setCustomFont(context, holder.tvBody);
// holder.tvDate = ( TextView ) view.findViewById( R.id.date );
holder.ivPhoto = (QuickContactBadge) view
.findViewById(R.id.imageContactPicture);
holder.btnDownload = (Button) view
.findViewById(R.id.downloadButton);
holder.media = (ImageView) view.findViewById(R.id.media);
holder.ellipse = (ImageView) view.findViewById(R.id.ellipsis);
AniFrame = (AnimationDrawable) holder.ellipse.getBackground();
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
/**
* New check starting here
*/
if (this.textSize > 0) {
holder.tvBody.setTextSize(this.textSize);
Utilities.setCustomFont(context, holder.tvBody);
}
final int col = this.textColor;
if (col != 0) {
// holder.tvPerson.setTextColor(col);
holder.tvBody.setTextColor(col);
holder.tvDate.setTextColor(col);
Utilities.setCustomFont(context, holder.tvDate);
}
int tt = PreferencesActivity
.getTextColorHackForMessageAdapter(context);
if (tt != 0) {
// holder.tvPerson.setTextColor(tt);
holder.tvBody.setTextColor(tt);
holder.tvDate.setTextColor(tt);
}
Conversation conv1 = Conversation.getConversation(context,
this.threadId, false);
if (conv1 == null) {
this.address = null;
this.name = null;
this.displayName = null;
} else {
contact = conv1.getContact();
this.address = contact.getNumber();
this.name = contact.getName();
this.displayName = contact.getDisplayName();
}
CharSequence text = m.getBody();
holder.tvBody.setText(text);
// unread / read
/*
* if ( m.getRead() == 0 ) { holder.vRead.setVisibility(
* View.VISIBLE ); } else { holder.vRead.setVisibility(
* View.INVISIBLE ); }
*/
int t = m.getType();
String subject = m.getSubject();
if (subject == null) {
subject = "";
} else {
subject = ": " + subject;
}
final long time = m.getDate();
holder.tvDate.setText(Utilities.getDate(context, time));
/**
* Adding codes for mms
*
*/
final Bitmap pic = m.getPicture();
if (pic != null) {
if (pic == Message.BITMAP_PLAY) {
holder.media.setImageResource(R.drawable.mms_play_btn);
} else {
holder.media.setImageBitmap(pic);
}
holder.media.setVisibility(View.VISIBLE);
final Intent i = m.getContentIntent();
holder.media.setOnClickListener(SMSdroid
.getOnClickStartActivity(context, i));
holder.media.setOnLongClickListener(m
.getSaveAttachmentListener(context));
} else {
holder.media.setVisibility(View.GONE);
holder.media.setOnClickListener(null);
}
// CharSequence text = m.getBody();
if (text == null && pic == null) {
final Button btn = holder.btnDownload;
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v) {
try {
Intent i = new Intent();
i.setClassName("com.android.mms",
"com.android.mms.transaction.TransactionService");
i.putExtra("uri", m.getUri().toString());
i.putExtra("type", 1);
ComponentName cn = context.startService(i);
if (cn != null) {
btn.setEnabled(false);
btn.setText(R.string.downloading_);
} else {
i = new Intent(Intent.ACTION_VIEW, Uri
.parse(MainActivity.URI
+ m.getThreadId()));
context.startActivity(Intent.createChooser(i,
context.getString(R.string.view_mms)));
}
} catch (SecurityException e) {
Log.e(TAG, "unable to start mms download", e);
Toast.makeText(context,
R.string.error_start_mms_download,
Toast.LENGTH_LONG).show();
}
}
});
holder.btnDownload.setVisibility(View.VISIBLE);
holder.btnDownload.setEnabled(true);
} else {
// testing hiding this code
// holder.btnDownload.setVisibility(View.GONE);
}
/**
* New check Ends here
*/
if (MainActivity.showContactPhoto) {
holder.ivPhoto.setImageDrawable(contact.getAvatar(this.context,
this.defaultContactAvatar));
holder.ivPhoto.setVisibility(View.VISIBLE);
holder.ivPhoto.setOnClickListener(WRAPPER.getQuickContact(
context, holder.ivPhoto,
contact.getLookUpUri(context.getContentResolver()), 2,
null));
setImageView(holder.ivPhoto);
} else {
holder.ivPhoto.setVisibility(View.GONE);
}
break;
case 1:
final Message m1 = Message.getMessage(context, cursor);
holder1 = (ViewHolder) view.getTag();
if (holder1 == null) {
holder1 = new ViewHolder();
holder1.tvBody = (TextView) view.findViewById(R.id.textBody);
holder1.tvDate = (TextView) view.findViewById(R.id.textDate);
// holder.vRead= (View) view.findViewById(R.id.read);
Utilities.setCustomFont(context, holder1.tvDate);
Utilities.setCustomFont(context, holder1.tvBody);
// holder.tvDate = ( TextView ) view.findViewById( R.id.date );
holder1.ivPhoto = (QuickContactBadge) view
.findViewById(R.id.imageContactPicture);
holder1.btnDownload = (Button) view
.findViewById(R.id.downloadButton);
holder1.media = (ImageView) view.findViewById(R.id.media);
holder1.ellipse = (ImageView) view.findViewById(R.id.ellipsis);
view.setTag(holder1);
} else {
holder1 = (ViewHolder) view.getTag();
}
if (MainActivity.showContactPhoto) {
holder1.ivPhoto.setImageDrawable(contact.getAvatar(this.context,
this.defaultContactAvatar));
holder1.ivPhoto.setVisibility(View.VISIBLE);
holder1.ivPhoto.setOnClickListener(WRAPPER.getQuickContact(
context, holder1.ivPhoto,
contact.getLookUpUri(context.getContentResolver()), 2,
null));
holder1.ivPhoto.setImageDrawable(contact.getAvatar(
this.context, this.defaultContactAvatar));
} else {
holder1.ivPhoto.setVisibility(View.GONE);
}
/**
* New check starting here
*/
if (this.textSize > 0) {
holder1.tvBody.setTextSize(this.textSize);
Utilities.setCustomFont(context, holder1.tvBody);
}
final int col1 = this.textColor;
if (col1 != 0) {
// holder.tvPerson.setTextColor(col);
holder1.tvBody.setTextColor(col1);
holder1.tvDate.setTextColor(col1);
Utilities.setCustomFont(context, holder1.tvDate);
}
int tt1 = PreferencesActivity
.getTextColorHackForMessageAdapter(context);
if (tt1 != 0) {
// holder.tvPerson.setTextColor(tt);
holder1.tvBody.setTextColor(tt1);
holder1.tvDate.setTextColor(tt1);
}
Conversation conv11 = Conversation.getConversation(context,
this.threadId, false);
if (conv11 == null) {
this.address = null;
this.name = null;
this.displayName = null;
} else {
contact = conv11.getContact();
this.address = contact.getNumber();
this.name = contact.getName();
this.displayName = contact.getDisplayName();
}
CharSequence text1 = m1.getBody();
holder1.tvBody.setText(text1);
// unread / read
/*
* if ( m.getRead() == 0 ) { holder.vRead.setVisibility(
* View.VISIBLE ); } else { holder.vRead.setVisibility(
* View.INVISIBLE ); }
*/
int t1 = m1.getType();
String subject1 = m1.getSubject();
if (subject1 == null) {
subject1 = "";
} else {
subject1 = ": " + subject1;
}
final long time1= m1.getDate();
holder1.tvDate.setText(Utilities.getDate(context, time1));
/**
* Adding codes for mms
*
*/
final Bitmap pic1 = m1.getPicture();
if (pic1 != null) {
if (pic1 == Message.BITMAP_PLAY) {
holder1.media.setImageResource(R.drawable.mms_play_btn);
} else {
holder1.media.setImageBitmap(pic1);
}
holder1.media.setVisibility(View.VISIBLE);
final Intent i = m1.getContentIntent();
holder1.media.setOnClickListener(SMSdroid
.getOnClickStartActivity(context, i));
holder1.media.setOnLongClickListener(m1
.getSaveAttachmentListener(context));
} else {
holder1.media.setVisibility(View.GONE);
holder1.media.setOnClickListener(null);
}
// CharSequence text = m.getBody();
if (text1 == null && pic1 == null) {
final Button btn = holder1.btnDownload;
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v) {
try {
Intent i = new Intent();
i.setClassName("com.android.mms",
"com.android.mms.transaction.TransactionService");
i.putExtra("uri", m1.getUri().toString());
i.putExtra("type", 1);
ComponentName cn = context.startService(i);
if (cn != null) {
btn.setEnabled(false);
btn.setText(R.string.downloading_);
} else {
i = new Intent(Intent.ACTION_VIEW, Uri
.parse(MainActivity.URI
+ m1.getThreadId()));
context.startActivity(Intent.createChooser(i,
context.getString(R.string.view_mms)));
}
} catch (SecurityException e) {
Log.e(TAG, "unable to start mms download", e);
Toast.makeText(context,
R.string.error_start_mms_download,
Toast.LENGTH_LONG).show();
}
}
});
holder1.btnDownload.setVisibility(View.VISIBLE);
holder1.btnDownload.setEnabled(true);
} else {
// testing hiding this code
// holder.btnDownload.setVisibility(View.GONE);
}
/**
* New check Ends here
*/
break;
}
}
/** View holder. */
public static class ViewHolder {
public static ImageView ellipse;
TextView tvBody;
TextView tvPerson;
TextView tvDate;
ImageView media;
// View vRead;
public View vPending;
public View vLayout;
public ImageView ivInOut;
public Button btnDownload;
public Button btnImport;
QuickContactBadge ivPhoto;
}
/** View holder. */
public static class ViewHolder1 {
public static ImageView ellipse;
TextView tvBody;
TextView tvPerson;
TextView tvDate;
ImageView media;
// View vRead;
public View vPending;
public View vLayout;
public ImageView ivInOut;
public Button btnDownload;
public Button btnImport;
QuickContactBadge ivPhoto;
}
/**
* Get the {@link Cursor}.
*
* @param cr
* {@link ContentResolver}
* @param u
* {@link Uri}
* @return {@link Cursor}
*/
private static Cursor getCursor(final ContentResolver cr, final Uri u) {
Log.d(TAG, "getCursor(" + u + ")");
final Cursor[] c = new Cursor[] { null, null };
int tid = -1;
try {
tid = Integer.parseInt(u.getLastPathSegment());
} catch (Exception e) {
Log.e(TAG, "error parsing uri: " + u, e);
}
try {
Log.d(TAG, "where: " + WHERE);
c[0] = cr.query(u, Message.PROJECTION_JOIN, WHERE, null, null);
} catch (NullPointerException e) {
Log.e(TAG, "error query: " + u + " / " + WHERE, e);
c[0] = null;
} catch (SQLiteException e) {
Log.e(TAG, "error getting messages", e);
}
final String[] sel = new String[] { String.valueOf(tid) };
try {
Log.d(TAG, "where: " + WHERE_DRAFT + " / sel: " + sel);
c[1] = cr.query(Uri.parse("content://sms/"),
Message.PROJECTION_SMS, WHERE_DRAFT, sel, Message.SORT_USD);
} catch (NullPointerException e) {
Log.e(TAG, "error query: " + u + " / " + WHERE_DRAFT + " sel: "
+ sel, e);
c[1] = null;
} catch (SQLiteException e) {
Log.e(TAG, "error getting drafts", e);
}
if (c[1] == null || c[1].getCount() == 0) {
return c[0];
}
if (c[0] == null || c[0].getCount() == 0) {
return c[1];
}
return new MergeCursor(c);
}
}
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
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