Из адаптера вставляются данные в textView в Item, при попытки вывести данные в тост таким образом
Toast.makeText(CardActivity.this, tvInviz.getText().toString(),Toast.LENGTH_LONG).show();
Получаю ошибку android.widget.TextView.getText()' on a null object reference'
Использую либу https://github.com/Diolor/Swipecards
Item
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_gravity="center"
android:layout_width="300dp"
android:layout_height="250dp">
<TextView
android:id="@+id/helloText"
android:textSize="40sp"
android:textColor="@android:color/white"
android:background="#E339"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<View
android:id="@+id/item_swipe_left_indicator"
android:alpha="0"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_margin="10dp"
android:background="#A5F" />
<View
android:id="@+id/item_swipe_right_indicator"
android:alpha="0"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_margin="10dp"
android:layout_gravity="right"
android:background="#5AF" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="@+id/textView3"
/>
Activity
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.example.vadik.alfatest.CardActivity">
<com.lorentzos.flingswipe.SwipeFlingAdapterView
android:id="@+id/frame"
android:background="#ffeee9e2"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:rotation_degrees="15.5"
tools:context=".CardActivity" />
</RelativeLayout>
Код полностью
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_card);
tvInviz = (TextView)findViewById(R.id.textView3);
SwipeFlingAdapterView flingContainer = (SwipeFlingAdapterView) findViewById(R.id.frame);
dbHelper = new DBHelper(this);
db = dbHelper.getReadableDatabase();
Intent intent1 = getIntent();
selectionArgs = intent1.getStringArrayExtra("selection_args");
String [] forQuery = new String[] {"_id","col_rus","col_eng"};
cursor = db.query("my_table",forQuery,"col_category =?",selectionArgs,null,null,null);
final ArrayList<Map<String, Object>> data = new ArrayList<Map<String, Object>>();
cursor.moveToFirst();
while(!cursor.isAfterLast()) {
m = new HashMap<String, Object>();
m.put(ATTRIBUTE_RUS_TRANSLATE,cursor.getString(cursor.getColumnIndex(DBHelper.COL_RUS)));
m.put(ATTRIBUTE_ENG_TRANSLATE,cursor.getString(cursor.getColumnIndex(DBHelper.COL_ENG)));
data.add(m);
cursor.moveToNext();
}
String[] from = new String[]{ATTRIBUTE_RUS_TRANSLATE,ATTRIBUTE_ENG_TRANSLATE} ;
int[] to = new int[]{R.id.helloText,R.id.textView3};
final SimpleAdapter simpleAdapter = new SimpleAdapter(this,data,R.layout.item,from,to);
flingContainer.setAdapter(simpleAdapter);
flingContainer.setFlingListener(new SwipeFlingAdapterView.onFlingListener() {
@Override
public void removeFirstObjectInAdapter() {
data.remove(0);
simpleAdapter.notifyDataSetChanged();
}
@Override
public void onLeftCardExit(Object dataObject) {
Toast.makeText(CardActivity.this, "Left!", Toast.LENGTH_SHORT).show();
}
@Override
public void onRightCardExit(Object dataObject) {
Toast.makeText(CardActivity.this, "Right!", Toast.LENGTH_SHORT).show();
}
@Override
public void onAdapterAboutToEmpty(int itemsInAdapter) {
simpleAdapter.notifyDataSetChanged();
Log.d("LIST", "notified");
}
@Override
public void onScroll(float v) {
}
});
flingContainer.setOnItemClickListener(new SwipeFlingAdapterView.OnItemClickListener() {
@Override
public void onItemClicked(int itemPosition, Object dataObject) {
Toast.makeText(CardActivity.this, tvInviz.getText().toString(),Toast.LENGTH_LONG).show();
}
});
}
}
