我正在尝试获取目标ID（以ImageView初始化），并将整数ID放入开关盒中，以查看相邻的View，并比较其可绘制对象以确定该玩家是否获胜或游戏是否继续。我将buttonPressed变量初始化为Integer，并使用parseInt（）获取目标的int值。
public void compareButton(int buttonPressed){
//int count = 0;
ImageView adjacent;
ImageView adjacentB;
switch (buttonPressed){
case R.id.imageButtonA: //this is where adjacent buttons are identified and compared
adjacent = findViewById(R.id.imageButtonB);
adjacentB = findViewById(R.id.imageButtonC);
if (target.getDrawable() == adjacent.getDrawable() && target.getDrawable() == adjacentB.getDrawable()) {
Toast.makeText(MainActivity.this, "You Win!", Toast.LENGTH_SHORT).show(); //Win condition
// } else if (target.getDrawable() == R.id.imageButtonE.getDrawable() & target.getDrawable() == R.id.imageButtonI.getDrawable()) {
//Toast.makeText(MainActivity.this, "You Win!", Toast.LENGTH_SHORT).show(); //Win condition
// } else if (target.getDrawable() == R.id.imageButtonD.getDrawable() & target.getDrawable() == R.id.imageButtonG.getDrawable()) {
//Toast.makeText(MainActivity.this, "You Win!", Toast.LENGTH_SHORT).show(); //Win condition
}
break;
case R.id.imageButtonB:
break;
我并不是为了调试而填写所有案例。
我遇到的问题是，当我运行仿真器时，出现错误消息
Caused by: java.lang.NumberFormatException: For input string: "androidx.appcompat.widget.AppCompatImageButton{517eade VFED..C.. ...P..ID 45,381-304,628 #7f070072 app:id/imageButtonA}"
at java.lang.Integer.parseInt(Integer.java:521)
at java.lang.Integer.parseInt(Integer.java:556)
at com.example.connect3.MainActivity.switchColor(MainActivity.java:75)
这是OnClickListener的代码：
public void switchColor(View view) {
//Button pressed, depending on user, switch's to that users color; identify adjacent button ID's; toast player control switch
if (player == 1) {
source = findViewById(R.id.yellow);
target = findViewById(view.getId());
target.setImageDrawable(source.getDrawable());
buttonPressed = Integer.parseInt(target.toString());
compareButton(buttonPressed);
player++;
Toast.makeText(MainActivity.this, "Player 2's Turn!", Toast.LENGTH_SHORT).show();
} else {
source = findViewById(R.id.red);
target = findViewById(view.getId());
target.setImageDrawable(source.getDrawable());
buttonPressed = Integer.parseInt(String.valueOf(target));
compareButton(buttonPressed);
player--;
Toast.makeText(MainActivity.this, "Player 1's Turn!", Toast.LENGTH_SHORT).show();
}
不确定目前发生了什么，因为我以为我所做的一切都正确，但显然遗漏了一些东西。任何帮助，将不胜感激。
最佳答案
变化：
buttonPressed = Integer.parseInt(String.valueOf(target));
至 ：
buttonPressed = target.getId（）;
说明：您的错误说NumberFormatException意味着您正试图从String中获取int值，而这是无法解析的，或者简单地，您的字符串不包含正确的int值，并且您正在传递（androidx.appcompat.widget ...）作为字符串，而您必须通过按钮我会