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I have a view with some input fields, one of those is a TextInputEditTextwith a datepickerassociated which shows up when the field is selected. 问题是，在第一次点击时，该TextInputEditText字段获得焦点，并且需要第二次点击才能显示datepicker.

这就是字段的定义方式

<android.support.design.widget.TextInputLayout
    android:id="@+id/wExpiresAt"
    style="@style/AppTheme.TextInputLayout"
    android:layout_width="180dp"
    android:layout_height="wrap_content"
    android:layout_marginBottom="8dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    app:errorTextAppearance="@style/AppTheme.Text.ErrorText"
    app:hintTextAppearance="@style/AppTheme.Text.HintText"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/wMessage">

    <android.support.design.widget.TextInputEditText
        android:id="@+id/tvExpiresAt"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="@string/tv_pick_date_ph"
        android:imeOptions="actionNext"
        android:textSize="18sp" />

</android.support.design.widget.TextInputLayout>

在活动中：

val mExpiresAt: TextInputEditText = findViewById(R.id.tvExpiresAt)

mExpiresAt!!.setOnClickListener {
    val cal   = Calendar.getInstance()
    val year  = cal.get(Calendar.YEAR)
    val month = cal.get(Calendar.MONTH)
    val day   = cal.get(Calendar.DAY_OF_MONTH)

    val dialog = DatePickerDialog(
            this@NewMessageActivity,
            android.R.style.Theme_Material_Light_Dialog_MinWidth,
            mDateSetListener,
            year, month, day)
    dialog.show()        
}

我的猜测是问题是由TextInputLayout包装引起的TextInputEditText，第一次点击触发动画，将提示字符串从文本字段移动到其顶部并将焦点放在字段本身，第二次点击触发与文本字段并datepicker出现。如何在第一次点击时获取所有事件？

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