android 继承和抽象方法,android – 类型新的AdapterView.OnItemClickListener(){}必须实现继承的抽象方法AdapterView.OnItemClick…

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新的AdapterView.OnItemClickListener(){}类型必须实现继承的抽象方法AdapterView.OnItemClickListener.onItemClick(AdapterView,View,int,long)

为什么我在尝试构建教程时收到此消息

package Fedail.Hello.Layout;

import android.app.Activity;

import android.os.Bundle;

import android.widget.*;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView.OnItemClickListener;

public class Layout_Feras extends Activity {

/** Called when the activity is first created. */

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

GridView gridview = (GridView) findViewById(R.id.gridview);

gridview.setAdapter(new ImageAdapter(this));

gridview.setOnItemClickListener(new OnItemClickListener(){

public void onItemClick(AdapterView> parent, View v, int position, Long id){

Toast.makeText(Layout_Feras.this,”” + position, Toast.LENGTH_SHORT).show();

}

}

);

}

}

解决方法:

改变这个:

public void onItemClick(AdapterView> parent, View v, int position, Long id)

对此:

public void onItemClick(AdapterView> parent, View v, int position, long id)

覆盖超级方法时,必须确保所有数据类型都与原始类型匹配.

标签:android,android-adapterview

来源: https://codeday.me/bug/20190724/1518391.html