[英]Make snackbar to appear after arrayadapter click
我有一個顯示項目列表的ArrayAdapter
。
每個項目都有一個按鈕。
單擊按鈕時,我想顯示snackbar
(現在它顯示一條吐司消息)。
我想知道如何在ArrayAdapter
中使用這樣的東西?
Snackbar snackbar = Snackbar.make(findViewById(android.R.id.content),text,Snackbar.LENGTH_SHORT);
View sbView = snackbar.getView();
sbView.setBackgroundColor(getResources().getColor(R.color.colorPrimaryDark));
TextView tv = (TextView) (snackbar.getView()).findViewById(com.google.android.material.R.id.snackbar_text);
Typeface font = ResourcesCompat.getFont(getBaseContext(), R.font.assistant);
tv.setTypeface(font);
tv.setTextSize( 14 );
snackbar.setAnchorView(findViewById( R.id.bottom_navigation ));
snackbar.setDuration( 5000 );
snackbar.show();
因為我什至在適配器中都沒有 findVireById。
適配器的具體部分是:
viewHolder.btn_AddToMyItems.setOnClickListener( v -> {
auth = FirebaseAuth.getInstance();
db = FirebaseFirestore.getInstance();
Intent intent = new Intent(getContext(), MyItemsActivity.class);
Map<String, Object> general_item = new HashMap<>();
general_item .put( "ItemID", item.getId() );
general_item .put("DateCreated", FieldValue.serverTimestamp());
CollectionReference colRefMyItems = db.collection( "Users" ).document( auth.getUid() ).collection( "MyItems" );
Query queryMyItems = colRefMyItems.whereEqualTo("ItemsID", item.getId());
queryMyItems.get().addOnCompleteListener( task -> {
if (task.isSuccessful()) {
QuerySnapshot snapshot = task.getResult();
if (snapshot.isEmpty()){
db.collection( "Users" ).document( auth.getUid() ).collection( "Items" ).add( general_item );
Toast.makeText(getContext(), "The item was added successfully", Toast.LENGTH_SHORT).show();
} else{
Toast.makeText(getContext(), "This item is already on your list", Toast.LENGTH_SHORT).show();
}
intent.putExtra( "TAG","999");
}
} );
謝謝
viewHolder.btn_AddToMyItems.setOnClickListener( v -> {
auth = FirebaseAuth.getInstance();
db = FirebaseFirestore.getInstance();
Intent intent = new Intent(getContext(), MyItemsActivity.class);
Map<String, Object> general_item = new HashMap<>();
general_item .put( "ItemID", item.getId() );
general_item .put("DateCreated", FieldValue.serverTimestamp());
CollectionReference colRefMyItems = db.collection( "Users" ).document( auth.getUid() ).collection( "MyItems" );
Query queryMyItems = colRefMyItems.whereEqualTo("ItemsID", item.getId());
queryMyItems.get().addOnCompleteListener( task -> {
if (task.isSuccessful()) {
QuerySnapshot snapshot = task.getResult();
if (snapshot.isEmpty()){
db.collection( "Users" ).document( auth.getUid() ).collection( "Items" ).add( general_item );
Snackbar.make(v,"The item was added successfully",Snackbar.LENGTH_LONG).show();
} else{
Snackbar.make(v,"This item is already on your list",Snackbar.LENGTH_LONG).show();
}
intent.putExtra( "TAG","999");
}
} );
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