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因此,我製作了一個Cookie Clicker應用程序,以幫助我開始學習如何使用Android Studio在Android上進行編程。
但我需要一種方法來保存玩家所擁有的cookie數量,所以當他退出遊戲並回來時,他們將被保存。
這是代碼我目前:如何在Android中保存數據?
MainActivity.java:
package com.android.example;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/* Sound */
final MediaPlayer cookieSound = MediaPlayer.create(this, R.raw.cookie_eat_short);
ImageButton playCookieSound = (ImageButton) this.findViewById(R.id.cookie_button);
playCookieSound.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cookieSound.start();
/* End of Sound */
/* The following lines add 1 to the score and then display it. */
scoreCookies++;
display(scoreCookies);
}
});
}
/* Initializing the score to 0
* This is also what I want to change, make it set the score to the saved score.*/
int scoreCookies = 0;
/* This method displays the score on the screen. */
private void display(int number) {
TextView quantityTextView = (TextView) findViewById(R.id.score_text_view);
quantityTextView.setText("" + number);
}
}
activity_main.xml中:
<ImageButton
android:id="@+id/cookie_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginBottom="124dp"
android:background="@android:color/transparent"
android:scaleType="fitStart"
app:srcCompat="@drawable/cookiepic" />
<TextView
android:id="@+id/score_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="52dp"
android:text="0"
android:textSize="42sp"
android:textAppearance="@style/TextAppearance.AppCompat.Headline" />
預先感謝幫助我:)
請只是看看谷歌或其他搜索引擎。至少有50000篇關於它的文章。 – creativecreatorormaybenot
你應該閱讀這[SharedPref](http://stackoverflow.com/questions/3624280/how-to-use-sharedpreferences-in-android-to-store-fetch-and-edit-values) – MohammedAlSafwan