Question

我是一名非常新的程序员，并且一直在阅读“开始Android 4游戏开发”，以便能够为应用程序商店制作一个简单的游戏。但是，在运行此代码时，当我尝试单击列表中的第一个元素时，onListItemClick不会触发，当我尝试插入覆盖语句时，如下所示，该行上会出现错误。我附上活动第一个列表项应该去，并感谢任何帮助。非常感谢你提前！

package com.example.chapter4androidbasics;

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;


public class AndroidBasicsStarter extends ListActivity {

String tests[] = { "LifeCycleTest", "SingleTouchTest", "MultiTouchTest", "KeyTest",
        "AccelerometerTest", "AssetsTest",
        "ExternalStorageTest", "SoundPoolTest", "MediaPlayerTest", "FullScreenTest",
        "RenderViewTest", "ShapeTest", "BitmapTest",
        "FontTest", "SurfaceViewTest" };


public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, tests));
}

@Override
protected void onListItemCLick(ListView list, View view, int  position, long id) {
    super.onListItemClick(list, view, position, id);
    String testName = tests[position];
    try {
        Class clazz = Class.forName("com.example.chapter4androidbasics." + testName);
        Intent intent = new Intent(this, clazz);
        startActivity(intent);
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
}

}

package com.example.chapter4androidbasics;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

public class LifeCycleTest extends Activity{
StringBuilder builder = new StringBuilder();
TextView textView;

private void log(String text) {
    Log.d("LifeCycleTest", text);
    builder.append(text);
    builder.append("\n");
    textView.setText(builder.toString());

}
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    textView = new TextView(this);
    textView.setText(builder.toString());
    setContentView(textView);
    log("created");
}

@Override
protected void onResume() {
    super.onResume();
    log("resumed");
}

@Override
protected void onPause() {
    super.onPause();
    log("paused");

    if (isFinishing()) {
        log("finishing");
    }
}
}

Answer 1

清理并重建您的项目/模块。尝试关闭然后打开它，最后尝试重新启动IDE。这些@Override注释错误时有发生，无法想象。

onListItemClick未触发，覆盖表示法会产生错误

1 个答案: