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Simple-Calculator
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Code Issues Packages Projects Releases Wiki Activity

implement decimals and correct handling of 0

This commit is contained in:
tibbi 2015-12-24 16:47:18 +01:00
parent c84200a101
commit 576520dc3a
1 changed files with 23 additions and 6 deletions
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29
app/src/main/java/calculator/simplemobiletools/com/simple_calculator/MainActivity.java
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@ -5,6 +5,8 @@ import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
import java.text.DecimalFormat;
import butterknife.Bind;
import butterknife.ButterKnife;
import butterknife.OnClick;
@ -26,23 +28,38 @@ public class MainActivity extends AppCompatActivity {
}
private String getFormattedValue(String str) {
return formatDouble(Double.parseDouble(str));
double doubleValue = Double.parseDouble(str);
return formatDouble(doubleValue);
}
private String formatDouble(double d) {
if (d == (long) d) {
return String.format("%d", (long) d);
} else {
return String.format("%s", d);
final DecimalFormat formatter = new DecimalFormat("0.0############");
return formatter.format(d);
}
}
@OnClick({R.id.btn_0, R.id.btn_1, R.id.btn_2, R.id.btn_3, R.id.btn_4, R.id.btn_5, R.id.btn_6, R.id.btn_7, R.id.btn_8, R.id.btn_9})
@OnClick(R.id.btn_decimal)
public void decimalClicked() {
String value = result.getText().toString();
if (!value.contains("."))
value += ".";
result.setText(value);
}
@OnClick(R.id.btn_0)
public void zeroClicked() {
String value = result.getText().toString();
if (!value.isEmpty() && !value.equals("0"))
value += "0";
result.setText(value);
}
@OnClick({R.id.btn_1, R.id.btn_2, R.id.btn_3, R.id.btn_4, R.id.btn_5, R.id.btn_6, R.id.btn_7, R.id.btn_8, R.id.btn_9})
public void digitClicked(View view) {
switch (view.getId()) {
case R.id.btn_0:
addDigit(0);
break;
case R.id.btn_1:
addDigit(1);
break;