Android 单按钮顺序多动作
我用一个按钮完成两项任务 1.日期选择 2.两个日期之间的差异 原样: 我对两个按钮使用“onclick”方法 btnDate2用于选择日期,然后单击issetDate2 按钮9用于计算两个日期之间的差异,并单击isdiff 将是: 一个按钮用于选择日期并计算两个日期之间的差值。该按钮应按顺序。例如: 1:选择日期 2.计算日期之间的差异 当前代码: MainActivity.javaAndroid 单按钮顺序多动作,android,onclick,onclicklistener,buttonclick,Android,Onclick,Onclicklistener,Buttonclick,我用一个按钮完成两项任务 1.日期选择 2.两个日期之间的差异 原样: 我对两个按钮使用“onclick”方法 btnDate2用于选择日期,然后单击issetDate2 按钮9用于计算两个日期之间的差异,并单击isdiff 将是: 一个按钮用于选择日期并计算两个日期之间的差值。该按钮应按顺序。例如: 1:选择日期 2.计算日期之间的差异 当前代码: MainActivity.java package com.bar.example.myapplication; import android.
package com.bar.example.myapplication;
import android.app.DialogFragment;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.format.DateFormat;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import org.threeten.bp.LocalDate;
import org.threeten.bp.format.DateTimeFormatter;
import org.threeten.bp.format.DateTimeParseException;
import org.threeten.bp.temporal.ChronoUnit;
import java.text.SimpleDateFormat;
public class MainActivity extends AppCompatActivity {
public TextView txtResult, tv, textDivNumber, textAVG, txtZaMisiac;
public static TextView tvresult;
public Button reset, button, button1, button2, button9, editTextDate3, editTextDate5, btnok;
public EditText barcodeResult;
public static EditText courseTitleEditText;
private ListView offeringsListView;
private static DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("d.M.uuuu");
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editTextDate5 = (Button) findViewById(R.id.editText5);
button2 = (Button) findViewById(R.id.btnDate2);
txtResult = (TextView) findViewById(R.id.editText2);
editTextDate5.setText(DateFormat.format("dd.MM.yyyy", new java.util.Date()).toString());
}
public void diff(View view) {
SimpleDateFormat myFormat = new SimpleDateFormat("dd.MM.yyyy");
CharSequence inputString1 = editTextDate5.getText();
try {
LocalDate date1 = LocalDate.parse(inputString1, dateFormatter);
CharSequence inputString2 = button2.getText();
try {
LocalDate date2 = LocalDate.parse(inputString2, dateFormatter);
long diffDate = ChronoUnit.DAYS.between(date1, date2);
txtResult.setText(String.valueOf(diffDate));
} catch (DateTimeParseException dtpe) {
Toast.makeText(this, "Date2 is not a valid date: " + inputString2, Toast.LENGTH_SHORT).show();
}
} catch (DateTimeParseException dtpe) {
Toast.makeText(this, "Date1 is not a valid date: " + inputString1, Toast.LENGTH_SHORT).show();
}
}
public void setDate1(View view) {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getFragmentManager(), "Date Picker");
}
public void setDate2(View view) {
DialogFragment newFragment = new DatePickerFragment2();
newFragment.show(getFragmentManager(), "Date Picker");
}
@Override
public void onPointerCaptureChanged(boolean hasCapture) {
}
}
DatePickPerformat2.java
package com.bar.example.myapplication;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.os.Bundle;
import android.widget.Button;
import android.widget.DatePicker;
import java.util.Calendar;
public class DatePickerFragment2 extends DialogFragment implements DatePickerDialog.OnDateSetListener {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
Button btnDate2 = (Button) getActivity().findViewById(R.id.btnDate2);
String stringOfDate = day + "." + (month + 1) + "." + year;
btnDate2.setText(stringOfDate);
}
}
activity_main.xml
修订守则
第一次点击,
选择ok之后。
现在我应该再次单击calc按钮来了解天数差异。
我需要的是第一次点击日期并在选择日期后选择ok。我应该能够在点击ok后根据屏幕看到天数差异,而不是再次按下按钮
要求3:
当edittext2编号超过vs spinner2编号时,edittext2颜色应将其更改为红色,并显示一些doast消息
当edittext2编号与spinner2编号非常接近时,edittext2颜色应将其更改为黄色,并显示一些doast消息
1.将以下方法添加到MainActivity.java中:
public void dualFunctions(View view) {
if(view.getTag() == null) view.setTag("0");
if(view.getTag().equals("0")){
view.setTag("1");
view.setBackgroundColor(Color.GREEN);
setDate2(view);
}else{
view.setTag("0"); // Remove this line for one shoot.
view.setBackgroundColor(Color.YELLOW);
diff(view);
}
}
2.更改布局中的按钮以使用此方法
该方法在日期选择和计算之间切换。如果只允许选择一次日期,则删除带有注释的行
希望有帮助
更新:
public void onDateSet(DatePicker view, int year, int month, int day) {
Button btnDate2 = (Button) getActivity().findViewById(R.id.btnDate2);
String stringOfDate = day + "." + (month + 1) + "." + year;
btnDate2.setText(stringOfDate);
MainActivity activity = (MainActivity)getActivity();
activity.diff(btnDate2);
}
对于要求3:
添加了if-else以检查条件
private final static int VERY_NEAR_DATE = 30;
public void diff(View view) {
SimpleDateFormat myFormat = new SimpleDateFormat("dd.MM.yyyy");
CharSequence inputString1 = editTextDate5.getText();
try {
LocalDate date1 = LocalDate.parse(inputString1, dateFormatter);
CharSequence inputString2 = button2.getText();
try {
LocalDate date2 = LocalDate.parse(inputString2, dateFormatter);
long diffDate = ChronoUnit.DAYS.between(date1, date2);
txtResult.setText(String.valueOf(diffDate));
diffDate = (Long)ok2.getSelectedItem() - diffDate;
if(diffDate < 0){
txtResult.setTextColor(Color.RED);
Toast.makeText(this, "Date not allowed!!", Toast.LENGTH_SHORT).show();
}else if(diffDate < VERY_NEAR_DATE) {
txtResult.setTextColor(Color.YELLOW);
Toast.makeText(this, "Date too near!", Toast.LENGTH_SHORT).show();
}
} catch (DateTimeParseException dtpe) {
Toast.makeText(this, "Date2 is not a valid date: " + inputString2, Toast.LENGTH_SHORT).show();
}
} catch (DateTimeParseException dtpe) {
Toast.makeText(this, "Date1 is not a valid date: " + inputString1, Toast.LENGTH_SHORT).show();
}
}
如果在微调器中更改选择后需要更新视图,请在onCreate中添加以下代码:
ok2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
diff(null);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {}
});
@I_A_____________________________________________;作为最后一行。Hi通过添加此行,选择的日期将保持弹出状态,并且不会带来任何自动计算@我更新了答案!并将布局中的按钮更改为使用setDate2,而不是dualFunctions。此外,我还需要更改给定的颜色要求。您能提供帮助吗。TextColor还是BackgroundColor?是否定义了非常接近的数字?喷丝头2的适配器是或?请澄清上述问题。