package text.xujiajian.asus.com.shaopdemo;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
public class MainActivity extends AppCompatActivity {

    @Override
protected void onCreate(Bundle savedInstanceState) {
        super
 
.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SharedPreferences sp =this.getSharedPreferences("name",MODE_PRIVATE);
        boolean isFirst =sp.getBoolean("isFirst",true);
SharedPreferences.Editor  editor=sp.edit();
        if(isFirst){
            Log.i("", "onCreate: 第一次");
 
editor.putBoolean("isFirst",false);
editor.commit();
}else {
            Log.i("", "onCreate: 第二次");
}
    }
}