Question

我正在尝试在ListView中设置我的字符串，但list.setadpter(adapter)发出错误是否有任何方法可以做到？请帮助我在这一行上获得错误 next.setAdapter（new ArrayAdapter（this，R.id.Sorah，surah.toCharArray（）））;

enter code herepackage com.example.ahsan.quranapp;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.example.ahsan.quranapp.api.MyAPI;
import com.example.ahsan.quranapp.model.Ayah;
import com.example.ahsan.quranapp.model.MyResponse;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;
import java.util.ArrayList;
import java.util.List;
import retrofit2.Call;
import retrofit2.Response;
public class Next extends AppCompatActivity{
Retrofit retrofit;
MyAPI service;
ListView next;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sorah);
    retrofit = new Retrofit.Builder()
            .baseUrl("http://api.globalquran.com/")
            .addConverterFactory(GsonConverterFactory.create())
            .build();
    service = retrofit.create(MyAPI.class);
}
@Override
public void onClick(View v) {
    Intent i = getIntent();
    Intent i2 = getIntent();
    String str =i2.getStringExtra("str");

    //final EditText ed = (EditText) findViewById(R.id.ayah);
    //final String str = ed.getText().toString().trim();
    //final String str = num.toString().trim();
        Call<MyResponse> call = service.getSurah(str);
        call.enqueue(new Callback<MyResponse>() {
            @Override
            public void onResponse(Call<MyResponse> call, Response<MyResponse> response) {

                next  = (ListView) findViewById(R.id.Sorah);

                List<Ayah> list = new ArrayList<Ayah>(response.body().getQuran().getQuranSimple().values());
                String surah = "";

                for (Ayah ayah: list) {
                    surah += ayah.getSurah() + ":" + ayah.getAyah() + " ";
                    surah += ayah.getVerse() + '\n';
                }
                surah = surah.replace("\n", System.getProperty("line.separator"));
                next.setAdapter(new ArrayAdapter<String>(this, R.id.Sorah, surah.toCharArray()));
            }

            @Override
            public void onFailure(Call<MyResponse> call, Throwable t) {
                TextView tv = (TextView) findViewById(R.id.verse);
                tv.setText("Op Failed");
            }
        });
    }
}
}

Answer 1

以这种方式更改setAdapter - ＆gt;

next.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, surah.toCharArray()));

这里的问题是你使用ArrayAdapter时必须使用android默认项目列表。

试图在Listview中设置字符串

1 个答案: