【发布时间】:2014-10-11 18:57:17
【问题描述】:
我正在使用以下代码以编程方式显示列表视图: 以下是以编程方式显示列表视图的方式:
messagesList = (ListView) findViewById(R.id.listMessages);
messageAdapter = new MessageAdapter(this);
我想将列表限制为 25 个项目,并且它不是无限的。
下面是布局。
<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:background="@drawable/white_wallpaper"
>
<ListView
android:id="@+id/listMessages"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/divider"
android:divider="@null"
android:dividerHeight="0dp"
android:inputType="text|textNoSuggestions"
android:padding="0dip"
android:stackFromBottom="true"
android:transcriptMode="alwaysScroll"
tools:listitem="@layout/message_left" />
<RelativeLayout
android:id="@+id/divider"
android:layout_width="fill_parent"
android:layout_height="1dip"
android:background="@color/off_white"
android:layout_above="@+id/relSendMessage" />
<RelativeLayout
android:id="@+id/relSendMessage"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:background="#ddd"
android:paddingLeft="10dp"
android:layout_alignParentBottom="true">
<EditText
android:id="@+id/messageBodyField"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignBottom="@+id/sendButton"
android:layout_alignTop="@+id/sendButton"
android:layout_marginBottom="-4dp"
android:layout_marginRight="10dp"
android:inputType="text|textNoSuggestions"
android:layout_toLeftOf="@+id/sendButton"
android:background="@android:color/white"
android:hint="@string/message_elipses"
android:textColor="#000000"
android:textColorLink="#adefda"
android:textSize="14sp" />
<Button
android:id="@+id/sendButton"
android:layout_width="72dp"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_margin="4dp"
android:background="@drawable/button_send" />
</RelativeLayout>
<Button
android:id="@+id/iSchedule"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:alpha="0.7"
android:background="#C11B17"
android:text="Schedule"
android:textColor="#f2f2f2"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" />
</RelativeLayout>
我得到了以下建议,但我不确定如何将其集成到上述代码中:
@Override
public int getCount() {
return 25;
}
提前致谢,如有任何澄清,请告诉我。
更新
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.messaging);
feedBack = new FeedbackDialog(this, "ID");
final TextView iSchedule = (TextView) this.findViewById(R.id.iSchedule);
iSchedule.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
MessagingActivity1.this.startActivity(new Intent(MessagingActivity1.this, ScheduleMatchOptionActivity.class));
}
});
Parse.initialize(this, "ID", "ID");
bindService(new Intent(this, MessageService.class), serviceConnection,
BIND_AUTO_CREATE);
Intent intent = getIntent();
recipientId = intent.getStringExtra("RECIPIENT_ID");
currentUserId = ParseUser.getCurrentUser().getObjectId();
messageAdapter = new MessageAdapter(this);
@Override
public int getCount() {
messagesList.setAdapter(messageAdapter);
return 25;
}
messagesList = (ListView) findViewById(R.id.listMessages);
populateMessageHistory();
messageBodyField = (EditText) findViewById(R.id.messageBodyField);
findViewById(R.id.sendButton).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View view) {
sendMessage();
}
});
}
但是,我收到以下错误 在实时@override 中,它说令牌上的语法错误,错位的构造 在公共 int 中获取计数“令牌上的语法错误,错误的构造” 在 return 25 - Void 方法不能返回值
【问题讨论】:
标签: java android android-layout android-activity android-listview