當單擊其他按鈕，但仍具有相同功能時，如何更改按鈕文本？ 安卓系統
[英]How can I change a buttons text when a different button is clicked and still have it function the same? Android
問題描述
前幾天我問了這個問題，並得到了一些答案，但是我無法實現它們。
我設置了一個按鈕，將語言從英語更改為威爾士語，只有大約5行英語，因此只需使用.setText手動更改每個框中的文本（也不支持威爾士語）。
我還需要更改按鈕上的文本，這可以工作，但是一旦更改語言，其他按鈕將無法正常工作。
按下英語或威爾士按鈕（更改按鈕的語言）后，calc，reset，calc2和reset2按鈕停止執行設置為要執行的功能...但是它們在未按下任何按鈕之前都可以工作。
這仍然是我的第一個應用程序，如果它太亂了，我對此表示歉意，我將包括所有代碼，以希望有人可以看到我哪里出了問題。
有問題的代碼在底部，即英語和威爾士按鈕的右邊。
謝謝
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");
}
});
}
}
這是我最后一個被問到的答案，它似乎很好，我已經在代碼的不同地方嘗試過，但是總是會出現某種形式或錯誤，原因可能是我如何安排我的其余代碼？
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);
}
1 個解決方案
解決方案1
0 已采納 2019-02-05 11:38:22
試試這個代碼，我認為問題是重新初始化，然后再次setOnclickListener（）
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");
}
});
}
}
或者您必須實現View.OnclickListener並分配單擊的View的檢查ID。
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