這個setAdapter一直報錯，cannot resolve method 。實在找不出問題出在哪里
uj5u.com熱心網友回復：
mainVp是個什么東西uj5u.com熱心網友回復：
package com.example.ty2;import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import androidx.viewpager.widget.ViewPager;
import android.widget.RelativeLayout;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import java.util.ArrayList;
import java.util.List;
public class Main2Activity <adapter> extends AppCompatActivity implements View.OnClickListener{
ImageView addCityIv,moreIv;
LinearLayout pointLayout;
RelativeLayout mainVp;
List<Fragment>fragmentList;
List<String>cityList;
List<ImageView>imgList;
private SharedPreferences pref;
private int bgNum;
private CityFragmentPagerAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
addCityIv = findViewById(R.id.main_iv_add);
moreIv = findViewById(R.id.main_iv_more);
pointLayout = findViewById(R.id.main_layout_point);
mainVp = findViewById(R.id.main_vp);
addCityIv.setOnClickListener(this);
moreIv.setOnClickListener(this);
fragmentList = new ArrayList<>();
cityList = new ArrayList<>();
imgList = new ArrayList<>();
if (cityList.size()==0) {
cityList.add("重慶");
}
initPager();
adapter = new CityFragmentPagerAdapter(getSupportFragmentManager(), fragmentList);
mainVp.setAdapter(adapter);
initPoint();
}
private void initPoint() {
}
private void initPager() {
for (int i = 0; i < cityList.size(); i++) {
CityWeatherFragment cwFrag = new CityWeatherFragment();
Bundle bundle = new Bundle();
bundle.putString("city",cityList.get(i));
cwFrag.setArguments(bundle);
fragmentList.add(cwFrag);
}
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.main_iv_add:
break;
case R.id.main_iv_more:
break;
}
}
}
uj5u.com熱心網友回復：
前面我寫了一個RelativeLayout mainVpuj5u.com熱心網友回復：
前面我寫了一個RelativeLayout mainVpuj5u.com熱心網友回復：
RelativeLayout 怎么會有setAdapter呢，你不能亂用啊，一般listview，recycleview才有uj5u.com熱心網友回復：
謝謝轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/53269.html
標籤：Android