【发布时间】:2020-11-06 15:40:50
【问题描述】:
我对 setOnLongClickListener 有疑问。当我使用此方法时,我希望将打开的对话框在我将手指从屏幕上移开时自动关闭(该方法的 return false 应该这样做)。是否可以用这种方法做到这一点,或者有其他合适的方法吗?
创建对话框
protected void showDialogLongClick(final int position){
final Dialog dialog = new Dialog(activity);
dialog.setCancelable(true);
View v = activity.getLayoutInflater().inflate(R.layout.onlongclick_card_mygift,null);
dialog.setContentView(v);
dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
nameLong = v.findViewById(R.id.name_longclick);
descriptionLong = v.findViewById(R.id.gift_description);
addressLong = v.findViewById(R.id.gift_address);
imageCategory = v.findViewById(R.id.small_category);
nameLong.setText(myGift.get(position).getName());
descriptionLong.setText(myGift.get(position).getDescription());
addressLong.setText(myGift.get(position).getAddress());
String cat = myGift.get(position).getCategory();
changeCategoryImage(cat, imageCategory);
dialog.show();
}
听众
holder.card.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
showDialogLongClick(position);
return false;
}
});
XML 卡片对话框
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_gravity="center"
app:cardCornerRadius="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/background_card_mygift"
android:orientation="vertical"
android:padding="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/name_longclick"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=""
android:textColor="#FFFFFF"
android:textSize="25sp"
android:layout_weight="1"
android:layout_marginEnd="10dp"/>
<ImageView
android:id="@+id/small_category"
android:layout_weight="0"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_gravity="center_vertical"/>
</LinearLayout>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=""
android:textColor="#F44336"
android:textSize="22sp"/>
<TextView
android:id="@+id/gift_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=""
android:textColor="#FFFFFF"
android:textSize="20sp"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=""
android:textColor="#F44336"
android:textSize="22sp"/>
<TextView
android:id="@+id/gift_address"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=""
android:textColor="#FFFFFF"
android:textSize="20sp"/>
</LinearLayout>
</androidx.cardview.widget.CardView>
【问题讨论】:
-
所以你想在长按时显示对话框,在用户从初始长按开始触摸屏幕时保持显示,并在用户停止触摸屏幕时关闭对话框?我理解正确吗?
-
@SammyT 是的,没错
标签: android android-studio android-recyclerview dialog gesture