前几天我问了这个问题并得到了一些答案,但我无法实现它们。
我已经设置了一个按钮来将语言从英语更改为威尔士语,只有大约 5 行英语,所以只需使用 .setText 手动更改每个框中的文本(也不支持威尔士语)。
我还需要更改按钮上的文本,这可行,但是一旦我更改了语言,其他按钮就无法正常工作。
一旦按下英语或威尔士语按钮(更改按钮的语言),calc、reset、calc2 和 reset2 按钮将停止执行它们设置的功能...但在按下两个按钮之前它们会工作.
这仍然是我的第一个应用程序,如果它很困惑,我深表歉意,我将包含所有代码,希望有人能看到我哪里出错了。
有问题的代码就在底部,英语和威尔士语按钮。
谢谢
public class MainActivity extends AppCompatActivity {
private EditText num1;
private EditText num2;
private EditText num3;
private EditText num4;
private TextView total;
private EditText num5;
private EditText num6;
private TextView total2;
private TextView abv1;
private TextView ml1;
private TextView quantity1;
private TextView removed1;
private TextView total1;
private TextView abv2;
private TextView ml2;
private TextView total22;
private TextView multi_title;
private TextView single_title;
public static double aroundUp(double number, int canDecimal) {
int cifras = (int) Math.pow(10, canDecimal);
return Math.ceil(number * cifras) / cifras;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
multi_title = findViewById(R.id.multi_english);
single_title = findViewById(R.id.single_english);
num1 = findViewById(R.id.a1numberdec);
num2 = findViewById(R.id.a2number);
num3 = findViewById(R.id.a3number);
num4 = findViewById(R.id.a4number);
Button calc = findViewById(R.id.buttoncalc);
Button reset = findViewById(R.id.buttonreset);
total = findViewById(R.id.a5number);
num5 = findViewById(R.id.a6numberdec);
num6 = findViewById(R.id.a7number);
total2 = findViewById(R.id.a8number);
Button calc2 = findViewById(R.id.buttoncalc2);
Button reset2 = findViewById(R.id.buttonreset2);
abv1 = findViewById(R.id.abv);
ml1 = findViewById(R.id.ml);
quantity1 = findViewById(R.id.quantity);
removed1 = findViewById(R.id.removed1);
total1 = findViewById(R.id.total1);
abv2 = findViewById(R.id.abv2);
ml2 = findViewById(R.id.ml2);
total22 = findViewById(R.id.total2);
Button welsh = findViewById(R.id.welsh);
Button english = findViewById(R.id.english);
calc.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (num1.getText().toString().length() == 0) {
num1.setText("0");
}
if (num2.getText().toString().length() == 0) {
num2.setText("0");
}
if (num3.getText().toString().length() == 0) {
num3.setText("0");
}
if (num4.getText().toString().length() == 0) {
num4.setText("0");
}
double number1 = Double.parseDouble(num1.getText().toString());
double number2 = Double.parseDouble(num2.getText().toString());
double number3 = Double.parseDouble(num3.getText().toString());
double number4 = Double.parseDouble(num4.getText().toString());
double sum = (((number1 * number2) / 1000) * 0.5) * (number3 - number4);
total.setText(String.format("£%s", aroundUp(sum, 2)));
}
});
reset.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
num1.setText("");
num2.setText("");
num3.setText("");
num4.setText("");
total.setText("");
num1.requestFocus();
}
});
calc2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (num5.getText().toString().length() == 0) {
num5.setText("0");
}
if (num6.getText().toString().length() == 0) {
num6.setText("0");
}
double number1 = Double.parseDouble(num5.getText().toString());
double number2 = Double.parseDouble(num6.getText().toString());
double sum = (((number1 * number2) / 1000) * 0.5);
total2.setText(String.format("£%s", aroundUp(sum, 2)));
}
});
reset2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
num5.setText("");
num6.setText("");
total2.setText("");
num5.requestFocus();
}
});
welsh.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
abv1.setText("abv% fesul can/botel?");
ml1.setText("ml fesul can / botel?");
quantity1.setText("Nifer yn y pecyn llawn?");
removed1.setText("Nifer wedi'i dynnu \n o becyn?");
total1.setText("Gellir lleihau'r cyn \n lleied o gynnyrch i -");
abv2.setText("abv% fesul can/botel?");
ml2.setText("ml per can/bottle?");
total22.setText("Gellir lleihau'r cyn \n lleied o gynnyrch i -");
multi_title.setText("Cyfrifiannell Lluosog");
single_title.setText("Cyfrifiannell Potel Sengl");
Button calc = findViewById(R.id.buttoncalc);
calc.setOnClickListener(this);
calc.setText("Cyfrifo");
Button reset = findViewById(R.id.buttonreset);
reset.setOnClickListener(this);
reset.setText("Ail gychwyn");
Button calc2 = findViewById(R.id.buttoncalc2);
calc2.setOnClickListener(this);
calc2.setText("Cyfrifo");
Button reset2 = findViewById(R.id.buttonreset2);
reset2.setOnClickListener(this);
reset2.setText("Ail gychwyn");
}
});
english.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
abv1.setText("abv % per can/bottle?");
ml1.setText("ml per can/bottle?");
quantity1.setText("Quantity in full pack?");
removed1.setText("Quantity removed \n from pack?");
total1.setText("Minimum product can \n be reduced to - ");
abv2.setText("abv % per can/bottle?");
ml2.setText("ml per can/bottle?");
total22.setText("Minimum product can \n be reduced to - ");
Button calc = findViewById(R.id.buttoncalc);
calc.setOnClickListener(this);
calc.setText("Calculation");
Button reset = findViewById(R.id.buttonreset);
reset.setOnClickListener(this);
reset.setText("Reset");
Button calc2 = findViewById(R.id.buttoncalc2);
calc2.setOnClickListener(this);
calc2.setText("Calculation");
Button reset2 = findViewById(R.id.buttonreset2);
reset2.setOnClickListener(this);
reset2.setText("Reset");
multi_title.setText("Multipack Calculator");
single_title.setText("Single Bottle Calculator");
}
});
}
}
这是我最后一次问到的答案在下面,看起来不错,我在代码的不同地方尝试过,但总是出现某种形式或错误,原因可能是我如何列出了我的其余代码?
Button calc = findViewById(R.id.buttoncalc);
Button reset = findViewById(R.id.buttonreset);
Button calc2 = findViewById(R.id.buttoncalc2);
Button reset2 = findViewById(R.id.buttonreset2);
setClicks();
english.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
quantity1.setText("Quantity");
total1.setText("Minimum");
calc.setText("Calculation");
reset.setText("Reset");
calc2.setText("Calculation");
reset2.setText("Reset");
multi_title.setText("Multi Calculator");
single_title.setText("Single Calculator");
}
});
private void setClicks() {
calc.setOnClickListener(this);
reset.setOnClickListener(this);
calc2.setOnClickListener(this);
reset2.setOnClickListener(this);
}
最佳答案
试试这个代码,我认为问题是重新初始化和 setOnclickListener() 再次
public class MainActivity extends AppCompatActivity {
private EditText num1;
private EditText num2;
private EditText num3;
private EditText num4;
private TextView total;
private EditText num5;
private EditText num6;
private TextView total2;
private TextView abv1;
private TextView ml1;
private TextView quantity1;
private TextView removed1;
private TextView total1;
private TextView abv2;
private TextView ml2;
private TextView total22;
private TextView multi_title;
private TextView single_title;
public static double aroundUp(double number, int canDecimal) {
int cifras = (int) Math.pow(10, canDecimal);
return Math.ceil(number * cifras) / cifras;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
multi_title = findViewById(R.id.multi_english);
single_title = findViewById(R.id.single_english);
num1 = findViewById(R.id.a1numberdec);
num2 = findViewById(R.id.a2number);
num3 = findViewById(R.id.a3number);
num4 = findViewById(R.id.a4number);
final Button calc = findViewById(R.id.buttoncalc);
final Button reset = findViewById(R.id.buttonreset);
total = findViewById(R.id.a5number);
num5 = findViewById(R.id.a6numberdec);
num6 = findViewById(R.id.a7number);
total2 = findViewById(R.id.a8number);
final Button calc2 = findViewById(R.id.buttoncalc2);
final Button reset2 = findViewById(R.id.buttonreset2);
abv1 = findViewById(R.id.abv);
ml1 = findViewById(R.id.ml);
quantity1 = findViewById(R.id.quantity);
removed1 = findViewById(R.id.removed1);
total1 = findViewById(R.id.total1);
abv2 = findViewById(R.id.abv2);
ml2 = findViewById(R.id.ml2);
total22 = findViewById(R.id.total2);
Button welsh = findViewById(R.id.welsh);
Button english = findViewById(R.id.english);
calc.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (num1.getText().toString().length() == 0) {
num1.setText("0");
}
if (num2.getText().toString().length() == 0) {
num2.setText("0");
}
if (num3.getText().toString().length() == 0) {
num3.setText("0");
}
if (num4.getText().toString().length() == 0) {
num4.setText("0");
}
double number1 = Double.parseDouble(num1.getText().toString());
double number2 = Double.parseDouble(num2.getText().toString());
double number3 = Double.parseDouble(num3.getText().toString());
double number4 = Double.parseDouble(num4.getText().toString());
double sum = (((number1 * number2) / 1000) * 0.5) * (number3 - number4);
total.setText(String.format("£%s", aroundUp(sum, 2)));
}
});
reset.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
num1.setText("");
num2.setText("");
num3.setText("");
num4.setText("");
total.setText("");
num1.requestFocus();
}
});
calc2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (num5.getText().toString().length() == 0) {
num5.setText("0");
}
if (num6.getText().toString().length() == 0) {
num6.setText("0");
}
double number1 = Double.parseDouble(num5.getText().toString());
double number2 = Double.parseDouble(num6.getText().toString());
double sum = (((number1 * number2) / 1000) * 0.5);
total2.setText(String.format("£%s", aroundUp(sum, 2)));
}
});
reset2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
num5.setText("");
num6.setText("");
total2.setText("");
num5.requestFocus();
}
});
welsh.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
abv1.setText("abv% fesul can/botel?");
ml1.setText("ml fesul can / botel?");
quantity1.setText("Nifer yn y pecyn llawn?");
removed1.setText("Nifer wedi'i dynnu \n o becyn?");
total1.setText("Gellir lleihau'r cyn \n lleied o gynnyrch i -");
abv2.setText("abv% fesul can/botel?");
ml2.setText("ml per can/bottle?");
total22.setText("Gellir lleihau'r cyn \n lleied o gynnyrch i -");
multi_title.setText("Cyfrifiannell Lluosog");
single_title.setText("Cyfrifiannell Potel Sengl");
calc.setText("Cyfrifo");
reset.setText("Ail gychwyn");
calc2.setText("Cyfrifo");
reset2.setText("Ail gychwyn");
}
});
english.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
abv1.setText("abv % per can/bottle?");
ml1.setText("ml per can/bottle?");
quantity1.setText("Quantity in full pack?");
removed1.setText("Quantity removed \n from pack?");
total1.setText("Minimum product can \n be reduced to - ");
abv2.setText("abv % per can/bottle?");
ml2.setText("ml per can/bottle?");
total22.setText("Minimum product can \n be reduced to - ");
calc.setText("Calculation");
reset.setText("Reset");
calc2.setText("Calculation");
reset2.setText("Reset");
multi_title.setText("Multipack Calculator");
single_title.setText("Single Bottle Calculator");
}
});
}
}
Or You have to implement View.OnclickListener and assign check id of clicked View.
关于android - 单击不同的按钮时如何更改按钮文本并使其功能相同?安卓,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54533243/