onCheckedChanged自动调用 [英] onCheckedChanged called automatically

问题描述

我在recyclerview中有一个开关，并且从DB检索数据后，数据在recyclerview中显示。打开recyclerview时，我读取了DB，并且如果DB中的字段为 Y，则启用该开关，否则将禁用该开关。
现在问题也随之出现，也调用了onCheckedchanged侦听器，我希望仅当用户手动设置开关时才调用onCheckedChanged。

I have a switch in a recyclerview and data is displayed in the recyclerview after retrieving data from DB. When the recyclerview is opened I read DB and if a field in DB is "Y" I enable the switch or else I disable the switch. Now the problem is along with it the onCheckedchanged listener is also called, I want the onCheckedChanged to be called only when user sets the switch manually.

打开时执行以下recyclerview：

On opening the recyclerview below is executed:

holder.enabledisable.setChecked(messengerRecord.get_is_valid().equalsIgnoreCase("Y"));

ViewHolder类：

ViewHolder class:

public class viewHolder extends RecyclerView.ViewHolder implements CompoundButton.OnCheckedChangeListener{
public SwitchCompat enabledisable;
 public viewHolder(View v) {
            enabledisable = (SwitchCompat) v.findViewById(R.id.enabledisable);
            enabledisable.setOnCheckedChangeListener(this);
...................................
...................................

OncheckedChanged方法，当刚打开recyclerView时将调用它：

OncheckedChanged method which is called when the recyclerView is just opened:

@Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            Log.v("ranjith","called oncheckedchanged");
            MessengerRecord rec;
            rec = dbHelper.getRecord(descview.getText().toString());
            switch (buttonView.getId()) {
                case R.id.enabledisable:
                    if (isChecked) {
                        rec.set_is_valid("Y");
                        dbHelper.updateRecord(rec);
                     }
}

在布局文件中：

<android.support.v7.widget.SwitchCompat
    android:layout_marginRight="16dp"
    android:layout_marginEnd="16dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:focusable="false"
    android:id="@+id/enabledisable"
    android:layout_alignRight="@+id/textview_to"
    android:layout_alignEnd="@+id/textview_to"
    android:layout_alignParentRight="true"
    android:layout_alignParentEnd="true"/>

推荐答案

奇怪的是我们所有人都有这个问题，但不是官方的Google回答了这个简单的问题。

It's weird all of us have this problem but not official Google answer to this simple problem.

最简单的检查方法是：

buttonView.isPressed()

如果为true，则表示用户单击了视图。

If true, means the user clicked the view.

不需要全局变量。

希望这会有所帮助。

这篇关于onCheckedChanged自动调用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！