android-arrayadapter

问题 I have one problem to use ListView. I search on the stackOverflow and other sites, but not fix again. Genel.java: public class Genel extends AppCompatActivity { MediaController mediaController; VideoView videoview; ListView listView; ArrayList<String> videoList; ArrayAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_genel); final VideoView videoview = findViewById(R.id.Videogenel); listView =

问题 I have one problem to use ListView. I search on the stackOverflow and other sites, but not fix again. Genel.java: public class Genel extends AppCompatActivity { MediaController mediaController; VideoView videoview; ListView listView; ArrayList<String> videoList; ArrayAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_genel); final VideoView videoview = findViewById(R.id.Videogenel); listView =

问题 I am very new to android development and am building an app that can read characteristics from a BLE device. I am able to connect to a device and read its characteristics. However, I have a problem is displaying the characteristics using an adapter. Initially, I tried using the RecycleView adapter but my program kept going back to the main activity as soon as I tried to notify my recycleview adapter and everything left on the Logcat would be this: 2020-11-24 13:35:37.220 12966-12966/? I

问题 I am very new to android development and am building an app that can read characteristics from a BLE device. I am able to connect to a device and read its characteristics. However, I have a problem is displaying the characteristics using an adapter. Initially, I tried using the RecycleView adapter but my program kept going back to the main activity as soon as I tried to notify my recycleview adapter and everything left on the Logcat would be this: 2020-11-24 13:35:37.220 12966-12966/? I

问题 the app run ordinary but when i click in button send ,emulator has fortunatly stopped and this error in Logcat: java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView. i search for this problem and found solution for other project and not similer to this project mainactivity(chat): package com.example.doctor; import android.app.Activity; import android.content.Intent; import android.database.DataSetObserver; import android.os.Bundle; import android.view

问题 the app run ordinary but when i click in button send ,emulator has fortunatly stopped and this error in Logcat: java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView. i search for this problem and found solution for other project and not similer to this project mainactivity(chat): package com.example.doctor; import android.app.Activity; import android.content.Intent; import android.database.DataSetObserver; import android.os.Bundle; import android.view

问题 I have an Adapter which extends from ArrayAdapter in order to fill one Spinner with one collections of objects (City). Both all objects and adapter work correctly, at least what it that it seems. The problem is that when I display all collections of cities, it is displayed to UP instead to DOWN. Does anyone know what can be happen? This is my Adapter public class AdapterSpinnerListCities extends ArrayAdapter<City> { // My context private Context context; // Values for the spinner (City)

问题 I have an Adapter which extends from ArrayAdapter in order to fill one Spinner with one collections of objects (City). Both all objects and adapter work correctly, at least what it that it seems. The problem is that when I display all collections of cities, it is displayed to UP instead to DOWN. Does anyone know what can be happen? This is my Adapter public class AdapterSpinnerListCities extends ArrayAdapter<City> { // My context private Context context; // Values for the spinner (City)

问题 I want implement load more progress bar after 10 image or position in my recycler-view. Here is some screenshot which give you more ideas I am fetching data from JSON. Here is example of my code [{ "name": "Thick Wallpaper", "url":{ "small": "https://i.pinimg.com/originals/b1/99/57/b19957de05529750cf4d8270441d5f95.jpg", "medium": "https://i.pinimg.com/originals/b1/99/57/b19957de05529750cf4d8270441d5f95.jpg", "large": "https://i.pinimg.com/originals/b1/99/57/b19957de05529750cf4d8270441d5f95

问题 I have minidemo with three fragments. One displays two TextView and an editview directly, the next treat the same layout as rows in a list with custom adapter, the third displays a plain list with standard adapter (simple_list_item_1) The activity uses a standard theme ( Theme.AppCompat.Light.DarkActionBar ), which I have not modified. I would have expected all three blocks to be styled similarly. Instead, the second block with the custom adapter does not seem to get styled according to the