0
我想显示一个应该包含发件人号码和短信主体的列表视图。我正在为此创建一个自定义适配器。ListView在设置自定义列表视图适配器后不显示
这里是我创建和设置自定义适配器（MapInbox.java）的类代码。
View baseView;
ArrayList<String> sms_id = new ArrayList<>();
ArrayList<String> sms_num = new ArrayList<>();
ArrayList<String> sms_Name = new ArrayList<>();
ArrayList<String> sms_dt = new ArrayList<>();
ArrayList<String> sms_body = new ArrayList<>();
String smsBody, senderNumber;
ListView lvSms;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
baseView = inflater.inflate(R.layout.fragment_map_inbox, container, false);
lvSms = (ListView) baseView.findViewById(R.id.lv_sms);
Uri myMessage = Uri.parse("content://sms/");
ContentResolver cr = getActivity().getContentResolver();
Cursor c = cr.query(myMessage, new String[]{"_id", "address", "date",
"body", "read"}, "address = '03414503584'", null, null);
getActivity().startManagingCursor(c);
getSmsLogs(c);
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
CustomMessagesAdapter customMessagesAdapter = new CustomMessagesAdapter
(getActivity(), R.layout.listview_messages);
lvSms.setAdapter(customMessagesAdapter);
}
}, 150);
return baseView;
}
public void getSmsLogs(Cursor c) {
if (sms_num.size() > 0) {
sms_id.clear();
sms_num.clear();
sms_Name.clear();
sms_body.clear();
sms_dt.clear();
}
try {
if (c.moveToFirst()) {
do {
if (c.getString(c.getColumnIndexOrThrow("address")) == null) {
c.moveToNext();
continue;
}
senderNumber = c.getString(
c.getColumnIndexOrThrow("address"));
smsBody = c.getString(c.getColumnIndexOrThrow("body"));
Log.e("Body-->", "" + smsBody);
Log.e("Number-->", "" + senderNumber);
sms_num.add(senderNumber);
sms_body.add(smsBody);
} while (c.moveToNext());
}
c.close();
} catch (Exception e) {
e.printStackTrace();
}
}
private class CustomMessagesAdapter extends ArrayAdapter<String> {
CustomMessagesAdapter(Context context, int resource) {
super(context, resource);
}
@NonNull
@Override
public View getView(final int position, View convertView, @NonNull ViewGroup parent) {
final ViewHolder viewHolder;
if (convertView == null) {
viewHolder = new ViewHolder();
LayoutInflater layoutInflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.listview_messages, parent, false);
viewHolder.tvSenderNumber = (TextView) convertView.findViewById(R.id.tv_sender_number);
viewHolder.tvMessage = (TextView) convertView.findViewById(R.id.tv_message);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.tvSenderNumber.setText(senderNumber);
viewHolder.tvMessage.setText(smsBody);
return convertView;
}
}
private static class ViewHolder {
TextView tvSenderNumber;
TextView tvMessage;
}
代码MapInbox布局文件：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/messages_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@+id/lv_sms"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginTop="5dp">
</ListView>
</LinearLayout>
而对于消息自定义的ListView布局代码（listview_messages.xml）：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:layout_marginLeft="6dp"
android:layout_marginRight="6dp"
android:background="@drawable/messages_background"
android:orientation="vertical"
android:padding="10dp">
<TextView
android:id="@+id/tv_sender_number"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:textColor="#FFF"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="@+id/tv_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="3dp"
android:textColor="#FFF"
android:textSize="18sp" />
</LinearLayout>
</LinearLayout>
messages_background
<solid android:color="#00000000" />
<stroke
android:width="2dp"
android:color="#FFF" />
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
<corners
android:bottomLeftRadius="15dip"
android:bottomRightRadius="15dip"
android:topLeftRadius="15dip"
android:topRightRadius="15dip" />
</shape>
我我全力以赴日志中所需的消息以及我将文本颜色设置为白色的原因是应用程序的背景为黑色。
我在这里做错了什么？ 谢谢！
我建议你先在一个地方组织你的数据。您可以创建一个包含所有SMS详细信息的普通旧Java类（即SMSData），然后使用此类来定义ArrayList的类型参数。除此之外，您不会将数据源传递到可以工作的适配器。 –