Question

即使重新启动应用程序或关闭应用程序并再次启动（持久存储），如何保存contadorliga或转为.setVisibility(View.VISIBLE);的值？我想保存int contadorliga，correcto1.setVisibility(View.VISIBLE);和correcto2.setVisibility(View.VISIBLE);，所以每次重新启动应用时，都是最新时间。就像保存游戏一样。这是我的代码：

package com.fakur.android.futbolquiz;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

public class Liga extends Activity {
/** Called when the activity is first created. */

static final int LIGA = 0;
int contadorbarcelona = 0;
int contadormadrid = 0;
int contadorliga = 0;

ImageView about;

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

setContentView(R.layout.liga);
TextView contador1 = (TextView) findViewById(R.id.contador1);
contador1.setText(contadorliga + "/20");
}

public void onBarcelonaClick(View botton) {

Intent intent = new Intent();
intent.setClass(this,Pregunta.class);
intent.putExtra("Barcelona", "Barcelona");
startActivityForResult(intent,LIGA);
}

public void onMadridClick(View botton) {

Intent intent = new Intent();
intent.setComponent(new ComponentName(this,Pregunta.class));
intent.putExtra("Madrid", "Madrid");
startActivityForResult(intent,LIGA);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

TextView contador1 = (TextView) findViewById(R.id.contador1);
ImageView correcto1 = (ImageView) findViewById(R.id.correcto1);
ImageView correcto2 = (ImageView) findViewById(R.id.correcto2);

if (requestCode == LIGA){

if (resultCode == 1) {

    if(contadorbarcelona == 0){

      correcto1.setVisibility(View.VISIBLE);
      contadorliga++ ;
      contadorbarcelona++;
    }
}

if (resultCode == 2) {
    if(contadormadrid == 0){

       correcto2.setVisibility(View.VISIBLE);
       contadorliga++ ;
       contadormadrid++;
    }
}

}

contador1.setText(contadorliga + "/20");

}

Answer 1

正如rciovati所建议的那样，SharedPreferences最好使用该数据库，因为如果你想一次又一次地从数据库中检索这些数据会导致性能问题。

还有其他选项可用于在Android应用程序中存储持久数据。检查this

Answer 2

您可以使用数据库来保存您想要永久存储的数据

如何持久保存我的结果？

2 个答案: