Question

我有一个简单的数据库，其中包含<div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"> <span aria-hidden="true">×</span> </button> <h4 class="modal-title" id="myModalLabel">this is mt4</h4> </div> <div class="modal-body"> this is the text: <%= modal['text1'] %> </div> </div> ...列和_id列。

尝试打印listView，但我的代码没有显示任何内容（我也没有错误，在LOG中我也有正确的值）。

感谢您的帮助。

EventActivity.java

createdOn

list_activity.xml

[...]

private void getEvent(){
        db = new DBManager(this);
        Cursor cursor = db.query();
        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,
                R.layout.list_activity,
                cursor,
                new String[] { "createdOn" },
                new int[] { R.id.singleDate });

        ListView listView = (ListView) findViewById(R.id.listDate1);
        listView.setAdapter(adapter);

        while (cursor.moveToNext()) {
            Log.d(LOGTAG, cursor.getLong(0) + " " + cursor.getString(1));
            // here I have all my entries in log
        }

list_row.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <ListView
        android:id="@+id/listDate1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true">
    </ListView>

</RelativeLayout>

Answer 1

您的错误在于创建适配器

SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,
    R.layout.list_row, // that's the layout to inflate for each row
    cursor,
    new String[] { "createdOn" }, // those are the cursor columns
    new int[] { R.id.singleDate }); // those are the layout views
                                    // to match to the cursor columns

Android：从数据库到列表视图，doens什么都不显示

1 个答案: