我想将ListView中的EditText数据插入到SQLite数据库中。 Items有一个Button,所以我已经尝试使用
修复(例如:there) android:focusable="false"
但是setOnItemClickListener不起作用。
我还想过从ActivitiesListAdapter获取onTextChanged函数,但我不知道如何访问MainActivity中的DatabaseHelper对象。
MainActivity中的函数setupActivityListViewAdapter:
private void setupActivityListViewAdapter() {
activitiesListAdapter = new ActivitiesListAdapter(MainActivity.this, R.layout.item_activities, db.getAllActivityByDay_ID(selected_day.getDay_ID()));
final ListView ActivitiesListView = (ListView)findViewById(R.id.listView_activities);
ActivitiesListView.setAdapter(activitiesListAdapter);
ActivitiesListView.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Toast.makeText(MainActivity.this,
"Item in position " + position + " clicked", Toast.LENGTH_LONG).show();
}
});
}
并且setOnItemClickListener不起作用? 我的item_activities.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:inputType="numberDecimal"
android:id="@+id/activity_hours"
android:gravity="center_vertical"
android:hint="@string/activity_hours_hint"
android:layout_weight="0.10" />
<TextView
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:text="@string/hours_h"
android:id="@+id/activity_hours_h"
android:gravity="center_vertical"
android:textStyle="normal" />
<EditText
android:layout_width="5sp"
android:layout_height="fill_parent"
android:id="@+id/activity_activity"
android:inputType="text"
android:layout_weight="2"
android:layout_gravity="center"
android:hint="@string/activity_activity_hint" />
<ImageButton
android:layout_width="0sp"
android:layout_height="fill_parent"
android:id="@+id/activity_delete"
android:onClick="removeActivityOnClickHandler"
android:contentDescription="@string/activity_delete"
android:src="@android:drawable/ic_menu_delete"
android:layout_weight="0.3"
android:focusable="false"
android:focusableInTouchMode="false"
/>
</LinearLayout>
我在ActivitiesListAdapter中有这个功能:
private void setHoursTextListeners(final ActivitiesHolder holder) {
holder.hours.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
try{
holder.activities.setHours(Integer.valueOf(s.toString()));
}catch (NumberFormatException e) {
Log.e(LOG_TAG, "error reading activity hour: " + s.toString());
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
@Override
public void afterTextChanged(Editable s) { }
});
}
那么我如何操作来自其他类的DataBaseHelper对象,即ActivitiesListAdapter类呢? 最好是将对象单独提供给DataBaseHelper而不是作为ArrayList(我认为?),这样我们如何解决问题。
谢谢和亲切的问候。
答案 0 :(得分:0)
您可以将文字写入商品EditText
,并使setOnItemClickListener
同时发挥作用。因此,您应该拨打setOnClickListener
以获取适配器内的按钮,并从setOnItemClickListener
开始执行所有操作。