我将尝试学习SharedPreferences,但是出现了错误。
我的布局有一个按钮,响应方法doThis
以下是我的java代码:
package com.example.sharedprefs;
import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
public class MainActivity extends Activity {
int i = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void doThis (View view){
i++;
SharedPreferences sharedPref = getSharedPreferences("FileName",MODE_PRIVATE);
SharedPreferences.Editor prefEditor = sharedPref.edit();
prefEditor.putInt("userChoice",i);
prefEditor.commit();
int number = sharedPref.getInt("userChoice", 0);
Toast.makeText(getApplicationContext(), number, Toast.LENGTH_LONG).show();
}
}
根据logcat日志,唯一可以确定的是:10-15 19:28:17.707: E/AndroidRuntime(16657): Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x1