android數據庫存儲方法（一）---------------SharedPreferences（實例）記錄應用程序使用次數（一）

package lc.sqlitedata.save.orio;

import android.app.Activity;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.widget.Toast;

public class UseCount extends Activity {
SharedPreferences preferences;
SharedPreferences.Editor editor;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.sql_sharedpreference);
preferences = getSharedPreferences("count", MODE_WORLD_READABLE);
editor=preferences.edit();
int count=preferences.getInt("count",0);
Toast.makeText(UseCount.this, count+"次", 5000).show();
editor.putInt("count", ++count);
editor.commit();


}
}【特別詳解】Toast.makeText(context, text, duration)text,必須有漢字，如上文Toast.makeText(UseCount.this, "程序以前被使用了"+count+"次", 5000).show();表示了程序被使用的次數如果寫成Toast.makeText(UseCount.this, count, 5000).show();程序報錯，望大家謹記