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[英]How to implement autocompletetextview in Android Studio with an API call?
[英]How to fill AutoCompleteTextView in Android with an API call?
我想嘗試從 API 獲取食品列表,並基於此更新 AutoCompleteTextView。
我試過這里的答案,但無濟於事: https://stackoverflow.com/a/36799955/7429535
到目前為止,這是我的代碼:
//Outside onCreate
List<String> apiFoods = new ArrayList<>();
//In onCreate
AutoCompleteTextView autocomplete = (AutoCompleteTextView) findViewById(R.id.foodActv);
final ArrayAdapter<String> autoAdapter = new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, apiFoods);
autocomplete.setAdapter(autoAdapter);
autocomplete.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
//retrieve data s
}
@Override
public void afterTextChanged(Editable s) {
retrieveData(s);
autoAdapter.notifyDataSetChanged();
Log.d("TAG", "foodsApi is " + apiFoods);
}
});
//Below onCreate
private void retrieveData(Editable s)
{
String text = s.toString();
if(text.contains(" "))
{
text.replace(" ", "%20");
}
String url = "https://api.edamam.com/api/food-database/parser?ingr="+text+"&app_id=8ff4be18&app_key=f2bf020e6d3cf1a9989c2a2163fb720f";
new AsyncHttpClient().get(url, new AsyncHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, byte[] responseBody)
{
try
{
JSONObject foodNames=new JSONObject(new String(responseBody));
JSONArray jArray = foodNames.getJSONArray("hints");
for(int i = 0; i < jArray.length(); i++)
{
try
{
JSONObject hintItem = jArray.getJSONObject(i);
JSONObject foodItem = hintItem.getJSONObject("food");
String foodLabel = foodItem.getString("label");
apiFoods.add(foodLabel);
}
catch(JSONException e)
{
}
}
} catch (JSONException e)
{
e.printStackTrace();
}
}
@Override
public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
Toast.makeText(getApplicationContext(), "API call failed", Toast.LENGTH_SHORT).show();
}
});
}
您可以在此處查看示例 API 響應: https://api.edamam.com/api/food-database/parser?ingr=red&app_id=8ff4be18&app_key=f2bf020e6d3cff1a72098
目前,此代碼正在將正確的食物名稱輸入到apiFoods ArrayList
但它沒有向我顯示應用程序中 select 的選項。
kindly note that you are initializing your adatapter long before you make an api call, so I suggest that when your api returns data inside your public void onSuccess(int statusCode, Header[] headers, byte[] responseBody)
function, do reinitialise your adapter如下。
private void retrieveData(final AutoCompleteTextView s)
{
String text = s.toString();
if(text.contains(" "))
{
text.replace(" ", "%20");
}
String url = "https://api.edamam.com/api/food-database/parser?ingr="+text+"&app_id=8ff4be18&app_key=f2bf020e6d3cf1a9989c2a2163fb720f";
new AsyncHttpClient().get(url, new AsyncHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, byte[] responseBody)
{
try
{
JSONObject foodNames=new JSONObject(new String(responseBody));
JSONArray jArray = foodNames.getJSONArray("hints");
for(int i = 0; i < jArray.length(); i++)
{
try
{
JSONObject hintItem = jArray.getJSONObject(i);
JSONObject foodItem = hintItem.getJSONObject("food");
String foodLabel = foodItem.getString("label");
apiFoods.add(foodLabel);
}
catch(JSONException e)
{
}
}
autoAdapter = new ArrayAdapter<>(ActivityName.this, android.R.layout.simple_dropdown_item_1line, apiFoods);
s.setAdapter(autoAdapter);
s.setThreshold(1);
s.setAdapter(adapter);
} catch (JSONException e)
{
e.printStackTrace();
}
}
@Override
public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
Toast.makeText(getApplicationContext(), "API call failed", Toast.LENGTH_SHORT).show();
}
});
}
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