Question

我有一个应用程序，其中单击图像使值（goldCount）增加1.运行时，应用程序在启动应用程序之前运行启动。但是，如果我最小化或关闭游戏，goldCount值将恢复为0.0，并且关于SharedPreferences的教程没有提供关于如何保存浮点值的线索。

我的主要Java代码：

package com.bipbapapps.leagueclickerapp;

import android.app.Activity;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;

public class MainClass extends Activity implements OnClickListener {

public float goldCount = 0.0f;
Button minionClick;
TextView textGoldCount;
String textTotal;

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





    //Set fullscreen
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.mainlayout);



    //Linking the variables
    minionClick = (Button) findViewById(R.id.minioncentreid);
    textGoldCount = (TextView) findViewById(R.id.textviewtop);

    //String which will display at the top of the app
    textTotal = goldCount + " Gold";

    //Setting TextView to the String
    textGoldCount.setText(textTotal);
    textGoldCount.setGravity(Gravity.CENTER);
    Typeface tf = Typeface.createFromAsset(getAssets(), "mechanical.ttf");
    textGoldCount.setTypeface(tf);
    textGoldCount.setTextSize(35);

    //Setting onClickListener
    minionClick.setClickable(true);

    minionClick.setOnClickListener(this);

}


@Override
public void onClick(View v) {
    // TODO Auto-generated method stub
    switch (v.getId()){
    case R.id.minioncentreid:
    goldCount += 1.0;
    textTotal = goldCount + " Gold";
    textGoldCount.setText(textTotal);
    textGoldCount.setGravity(Gravity.CENTER);
    break;
    }


}

}

我的Splash代码，如果它是相关的：

package com.bipbapapps.leagueclickerapp;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;


public class Splash extends Activity {

@Override
public void onCreate(Bundle splashBundle) {

    // TODO Auto-generated method stub
    super.onCreate(splashBundle);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.splash);



    Thread logoTimer = new Thread(){
        public void run(){
            try {
                sleep(2000);
                Intent mainIntent = new Intent("com.bipbapapps.leagueclickerapp.CLICKER");
                startActivity(mainIntent);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            finally {
            finish();   
            }
        }
    };
    logoTimer.start();
}

@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
}

}

如果有人能帮助我，我将非常感激。

Answer 1

与您的问题无关，但在Splash代码中，请执行以下操作，而不是创建新主题：

new Handler().postDelayed(new Runnable() {
    public void run() {
        Intent mainIntent = new Intent("com.bipbapapps.leagueclickerapp.CLICKER");
        startActivity(mainIntent);
    }
}, 2000);

它更清洁，在定义延迟动作的大多数情况下是首选。

要回答您的问题，您似乎没有处理任何事实，以实际保存goldCount的价值。

在课程顶部执行以下操作。＆＃34; APP_NAME_HERE＆＃34;应该用您的应用程序名称或任何类型的密钥替换。

SharedPreferences prefs = getSharedPreferences("APP_NAME_HERE", Context.MODE_PRIVATE);

在onCreate方法中，执行以下操作：

public void onCreate(Bundle savedInstanceState) {
    // other onCreateStuff

    goldCount = prefs.getFloat("goldCount", 0.0f);

    // other onCreateStuff
}

然后在你的onClick方法中：

@Override
public void onClick(View v) {
    switch (v.getId()){
        case R.id.minioncentreid:
            goldCount += 1.0;
            prefs.edit().putFloat("goldCount", goldCount).commit();
            textTotal = goldCount + " Gold";
            textGoldCount.setText(textTotal);
            textGoldCount.setGravity(Gravity.CENTER);
        break;
    }
}

我不确定如何在应用的暂停/销毁时保存我的浮点值

1 个答案: