Prefs错误-Android'；原因：java.lang.ClassCastException:java.lang.Boolean无法转换为java.lang.String'；

我试图实现prefs并解决我以前遇到的一个问题，但它只导致了另一个问题——prefs问题。它似乎显示了它来自我在onCreate（）方法上的代码行

特别是在日志中，它说：--

所以我试图解决这个问题，但我找不到解决办法。我用代码做了一个游戏，并设法创建了一个硬币系统，你可以在下面看到，还包括使用标签系统滚动汽车。问题是，每次我加载那个活动时，它似乎都会显示这个错误。 我之前没有这个问题，而是使用了不同的方法。这是代码。谢谢你的帮助。在尝试修复错误时，代码也被编辑--

对于onCreate方法--

  prefs = this.getSharedPreferences(
            "com.this.app", Context.MODE_PRIVATE);
status1 = prefs.getString(savelocked,"Locked");
    status2 = prefs.getString(savelocked2,"Locked");
    status3 = prefs.getString(savelocked3,"Locked");
    status4 = prefs.getString(savelocked4,"Locked");
    status5 = prefs.getString(savelocked5,"Locked");

    locked = status1;
    locked2 = status2;
    locked3 = status3;
    locked4 = status4;
    locked5 = status5;

 SharedPreferences.Editor prefsEditor = prefs.edit();


    prefsEditor.putString(savelocked,status1);
    prefsEditor.putString(savelocked2,status2);
    prefsEditor.putString(savelocked3,status3);
    prefsEditor.putString(savelocked4,status4);
    prefsEditor.putString(savelocked5,status5);
    prefsEditor.apply();

    final ImageView buy = (ImageView) findViewById(R.id.imageView26);
    final ImageView car = (ImageView) findViewById(R.id.imageView9);
    car.setTag("sportscar1");
    final ImageView use = (ImageView) findViewById(R.id.imageView5);
    buy.setImageResource(R.drawable.bull);
    if(car.getTag()=="sportscar1") {
        if (locked.equals("Locked")) {
            use.setImageResource(R.drawable.bull2);
        }
    }else{use.setImageResource(R.drawable.use);}
    final ImageView right = (ImageView) findViewById(R.id.imageView25);
    final ImageView left = (ImageView) findViewById(R.id.imageView24);

    buy.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                if (locked.equals("Locked") && GameView.coinz >= 1) {
                    status1="Unlocked";
                    Colors.color1 = "sportscar1";
                    GameView.coinz = GameView.coinz - 1;
                    Toast.makeText(context, " - 1 Car Token",
                            Toast.LENGTH_SHORT).show();
                    Toast.makeText(context, "You just bought the sports car!",
                            Toast.LENGTH_LONG).show();

                    use.setImageResource(R.drawable.use);
                    buy.setImageResource(R.drawable.bull);
                } else {
                    Toast.makeText(context, " Not enough Car Tokens.",
                            Toast.LENGTH_SHORT).show();
                }
        }
    });

    left.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.bull2);
                car.setTag("sportscar2");
                if (locked2.equals("Locked")) {
                    car.setImageResource(R.drawable.sportscar2_locked);
                    buy.setImageResource(R.drawable.buy);
                    use.setImageResource(R.drawable.bull2);
                } else if (locked2.equals("Unlocked")) {
                    car.setImageResource(R.drawable.sportscar2_show);
                    buy.setImageResource(R.drawable.bull);
                    use.setImageResource(R.drawable.use);
                }
        }
    });

    right.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.bull2);
                car.setTag("thecar1");
                if (locked5.equals("Locked")) {
                    car.setImageResource(R.drawable.thecar1_locked);
                    buy.setImageResource(R.drawable.buy);
                    use.setImageResource(R.drawable.bull2);
                } else if (locked5.equals("Unlocked")) {
                    car.setImageResource(R.drawable.thecar1_show);
                    buy.setImageResource(R.drawable.bull);
                    use.setImageResource(R.drawable.use);

                }

            }
        }
    });

    use.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {

            if (car.getTag() == "sportscar2") {
                Colors.color1 = "sportscar2";

                status2="Unlocked";
                Toast.makeText(context, "You just selected the second sports car!",
                        Toast.LENGTH_LONG).show();

                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.use);
            }
        }
    });

对于OnDestroy方法--

  prefs = this.getSharedPreferences(
            "com.this.app", Context.MODE_PRIVATE);
status1 = prefs.getString(savelocked,"Locked");
    status2 = prefs.getString(savelocked2,"Locked");
    status3 = prefs.getString(savelocked3,"Locked");
    status4 = prefs.getString(savelocked4,"Locked");
    status5 = prefs.getString(savelocked5,"Locked");

    locked = status1;
    locked2 = status2;
    locked3 = status3;
    locked4 = status4;
    locked5 = status5;

 SharedPreferences.Editor prefsEditor = prefs.edit();


    prefsEditor.putString(savelocked,status1);
    prefsEditor.putString(savelocked2,status2);
    prefsEditor.putString(savelocked3,status3);
    prefsEditor.putString(savelocked4,status4);
    prefsEditor.putString(savelocked5,status5);
    prefsEditor.apply();

    final ImageView buy = (ImageView) findViewById(R.id.imageView26);
    final ImageView car = (ImageView) findViewById(R.id.imageView9);
    car.setTag("sportscar1");
    final ImageView use = (ImageView) findViewById(R.id.imageView5);
    buy.setImageResource(R.drawable.bull);
    if(car.getTag()=="sportscar1") {
        if (locked.equals("Locked")) {
            use.setImageResource(R.drawable.bull2);
        }
    }else{use.setImageResource(R.drawable.use);}
    final ImageView right = (ImageView) findViewById(R.id.imageView25);
    final ImageView left = (ImageView) findViewById(R.id.imageView24);

    buy.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                if (locked.equals("Locked") && GameView.coinz >= 1) {
                    status1="Unlocked";
                    Colors.color1 = "sportscar1";
                    GameView.coinz = GameView.coinz - 1;
                    Toast.makeText(context, " - 1 Car Token",
                            Toast.LENGTH_SHORT).show();
                    Toast.makeText(context, "You just bought the sports car!",
                            Toast.LENGTH_LONG).show();

                    use.setImageResource(R.drawable.use);
                    buy.setImageResource(R.drawable.bull);
                } else {
                    Toast.makeText(context, " Not enough Car Tokens.",
                            Toast.LENGTH_SHORT).show();
                }
        }
    });

    left.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.bull2);
                car.setTag("sportscar2");
                if (locked2.equals("Locked")) {
                    car.setImageResource(R.drawable.sportscar2_locked);
                    buy.setImageResource(R.drawable.buy);
                    use.setImageResource(R.drawable.bull2);
                } else if (locked2.equals("Unlocked")) {
                    car.setImageResource(R.drawable.sportscar2_show);
                    buy.setImageResource(R.drawable.bull);
                    use.setImageResource(R.drawable.use);
                }
        }
    });

    right.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.bull2);
                car.setTag("thecar1");
                if (locked5.equals("Locked")) {
                    car.setImageResource(R.drawable.thecar1_locked);
                    buy.setImageResource(R.drawable.buy);
                    use.setImageResource(R.drawable.bull2);
                } else if (locked5.equals("Unlocked")) {
                    car.setImageResource(R.drawable.thecar1_show);
                    buy.setImageResource(R.drawable.bull);
                    use.setImageResource(R.drawable.use);

                }

            }
        }
    });

    use.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {

            if (car.getTag() == "sportscar2") {
                Colors.color1 = "sportscar2";

                status2="Unlocked";
                Toast.makeText(context, "You just selected the second sports car!",
                        Toast.LENGTH_LONG).show();

                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.use);
            }
        }
    });

对于与onCreate中的问题相关的实际代码--

  prefs = this.getSharedPreferences(
            "com.this.app", Context.MODE_PRIVATE);
status1 = prefs.getString(savelocked,"Locked");
    status2 = prefs.getString(savelocked2,"Locked");
    status3 = prefs.getString(savelocked3,"Locked");
    status4 = prefs.getString(savelocked4,"Locked");
    status5 = prefs.getString(savelocked5,"Locked");

    locked = status1;
    locked2 = status2;
    locked3 = status3;
    locked4 = status4;
    locked5 = status5;

 SharedPreferences.Editor prefsEditor = prefs.edit();


    prefsEditor.putString(savelocked,status1);
    prefsEditor.putString(savelocked2,status2);
    prefsEditor.putString(savelocked3,status3);
    prefsEditor.putString(savelocked4,status4);
    prefsEditor.putString(savelocked5,status5);
    prefsEditor.apply();

    final ImageView buy = (ImageView) findViewById(R.id.imageView26);
    final ImageView car = (ImageView) findViewById(R.id.imageView9);
    car.setTag("sportscar1");
    final ImageView use = (ImageView) findViewById(R.id.imageView5);
    buy.setImageResource(R.drawable.bull);
    if(car.getTag()=="sportscar1") {
        if (locked.equals("Locked")) {
            use.setImageResource(R.drawable.bull2);
        }
    }else{use.setImageResource(R.drawable.use);}
    final ImageView right = (ImageView) findViewById(R.id.imageView25);
    final ImageView left = (ImageView) findViewById(R.id.imageView24);

    buy.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                if (locked.equals("Locked") && GameView.coinz >= 1) {
                    status1="Unlocked";
                    Colors.color1 = "sportscar1";
                    GameView.coinz = GameView.coinz - 1;
                    Toast.makeText(context, " - 1 Car Token",
                            Toast.LENGTH_SHORT).show();
                    Toast.makeText(context, "You just bought the sports car!",
                            Toast.LENGTH_LONG).show();

                    use.setImageResource(R.drawable.use);
                    buy.setImageResource(R.drawable.bull);
                } else {
                    Toast.makeText(context, " Not enough Car Tokens.",
                            Toast.LENGTH_SHORT).show();
                }
        }
    });

    left.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.bull2);
                car.setTag("sportscar2");
                if (locked2.equals("Locked")) {
                    car.setImageResource(R.drawable.sportscar2_locked);
                    buy.setImageResource(R.drawable.buy);
                    use.setImageResource(R.drawable.bull2);
                } else if (locked2.equals("Unlocked")) {
                    car.setImageResource(R.drawable.sportscar2_show);
                    buy.setImageResource(R.drawable.bull);
                    use.setImageResource(R.drawable.use);
                }
        }
    });

    right.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            if (car.getTag() == "sportscar1") {
                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.bull2);
                car.setTag("thecar1");
                if (locked5.equals("Locked")) {
                    car.setImageResource(R.drawable.thecar1_locked);
                    buy.setImageResource(R.drawable.buy);
                    use.setImageResource(R.drawable.bull2);
                } else if (locked5.equals("Unlocked")) {
                    car.setImageResource(R.drawable.thecar1_show);
                    buy.setImageResource(R.drawable.bull);
                    use.setImageResource(R.drawable.use);

                }

            }
        }
    });

    use.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {

            if (car.getTag() == "sportscar2") {
                Colors.color1 = "sportscar2";

                status2="Unlocked";
                Toast.makeText(context, "You just selected the second sports car!",
                        Toast.LENGTH_LONG).show();

                buy.setImageResource(R.drawable.bull);
                use.setImageResource(R.drawable.use);
            }
        }
    });

实例化的变量（在活动开始时）--

谢谢你的帮助。我之前使用==时没有这个问题，这次使用的是.equals（）。抱歉，代码太长了。请帮忙。感谢所有的帮助。谢谢你抽出时间。 编辑——许多代码已被截断，上面的代码指的是一般含义。 编辑2——还包括实例化的变量。 再次感谢您的帮助。

（很抱歉将此作为回答，但我没有足够的代表添加评论） 您还应该在其他行中使用“equals（）”：

在您拥有的每个地方：

if (car.getTag()=="sportscar1") { ...

（或“sportscar2”，或任何字符串）您应该使用

if (car.getTag().equals("sportscar1")) { ...

---

请记住，Java中的字符串也是对象，因此不能这样比较，因为它们不是同一对象的完全相同的实例。因此，您应该使用.equals（）

不客气，游戏程序员。您得到的错误意味着存在具有该名称的首选项变量，但由于某些原因，它找到的数据类型不是字符串

将onCreate中的代码更改为：

status1 = prefs.getString("savelocked", "Locked");

您的onDestroy中的内容是：

prefsEditor.putString("savelocked", status1);

---

只需在不同的首选项变量中存储和检索相同的信息。老实说，从我在你的代码中看到的情况来看，我仍然不知道你一开始为什么会犯这样的错误。但是如果它能工作，它也能工作。

这是太多的代码了。帮助我们帮助您，通过编写一个最小的、完整的示例来说明您遇到的问题。（你甚至可能会发现，解决这个问题的过程有助于你自己解决问题。）你能介绍一下你实例化“锁定”、“保存锁定”和“状态”变量的地方吗？无论你在哪里设定他们的价值观？我在哪里都看不到布尔人。在你的日志中，应该有更多的错误行在“原因：…”下面，这些错误行应该是“在…”这些错误行会告诉你你的代码的哪一部分，或者哪些行试图转换布尔值。这里只是在黑暗中拍摄一下。在onCreate中，请尝试：

status1=prefs.getString（“savelocked”、“Locked”）。在onDestroy中，尝试使用prefsEditor.putString（“savelocked”，status1）萨米T，非常感谢！！！！！！成功了。我已经面临这个问题将近两个月了！！非常感谢。你能把你的建议写下来作为答复吗？谢谢你的帮助，虽然这不是真正的问题。