问题
I have used TimePicker to make the user to choose time see here and here also. But I didnot find a way to make the user to select second also. Now user can select Hour and Minute but not second. If I want to set a time for 02:05:10 then what I have to do? How to pick a second using TimePicker?
回答1:
I think the best solution is to create your own TimePicker, by using the Time-class and three NumberPickers.
回答2:
I've published an open source project on GitHub which has TimePicker with seconds:
https://github.com/IvanKovac/TimePickerWithSeconds
Have a look.
回答3:
One quick and dirty way is to use two TimePickers, One for hours,minutes, and use the minutes on the other one as secunds. Hide the unused hours under the first minutes. This only works in 24 hour mode. Must declare timepicker for seconds first so locates under.
<RelativeLayout
<TimePicker
android:id="@+id/timePicker_Sec"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="76dp" />
<TimePicker
android:id="@+id/timePicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/timePicker_Sec"
android:layout_marginLeft="0dp" />
</RelativeLayout>
回答4:
The best way around this would be to create three separate 'number pickers' instead of timepicker... I placed them within a linear layout and its working fine.
Then all you do is store the values inside three separate variables. int Hours, int Minutes, int Seconds and do your calculating.
This was my way around it without downloading any external sources which may contain viruses.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center">
<NumberPicker
android:id="@+id/numpicker_hours"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</NumberPicker>
<NumberPicker
android:id="@+id/numpicker_minutes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp">
</NumberPicker>
<NumberPicker
android:id="@+id/numpicker_seconds"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</NumberPicker>
</LinearLayout>
回答5:
Here is a custom TimePickerDialog with seconds.
MainActivity.java
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.NumberPicker;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
final TextView timeTV = findViewById(R.id.time_text_view);
timeTV.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
View view = View.inflate(MainActivity.this, R.layout.time_dialog, null);
final NumberPicker numberPickerHour = view.findViewById(R.id.numpicker_hours);
numberPickerHour.setMaxValue(23);
numberPickerHour.setValue(sharedPreferences.getInt("Hours", 0));
final NumberPicker numberPickerMinutes = view.findViewById(R.id.numpicker_minutes);
numberPickerMinutes.setMaxValue(59);
numberPickerMinutes.setValue(sharedPreferences.getInt("Minutes", 0));
final NumberPicker numberPickerSeconds = view.findViewById(R.id.numpicker_seconds);
numberPickerSeconds.setMaxValue(59);
numberPickerSeconds.setValue(sharedPreferences.getInt("Seconds", 0));
Button cancel = view.findViewById(R.id.cancel);
Button ok = view.findViewById(R.id.ok);
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setView(view);
final AlertDialog alertDialog = builder.create();
cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
alertDialog.dismiss();
}
});
ok.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
timeTV.setText(numberPickerHour.getValue() + ":" + numberPickerMinutes.getValue() + ":" + numberPickerSeconds.getValue());
// timeTV.setText(String.format("%1$d:%2$02d:%3$02d", numberPickerHour.getValue(), numberPickerMinutes.getValue(), numberPickerSeconds.getValue()));
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putInt("Hours", numberPickerHour.getValue());
editor.putInt("Minutes", numberPickerMinutes.getValue());
editor.putInt("Seconds", numberPickerSeconds.getValue());
editor.apply();
alertDialog.dismiss();
}
});
alertDialog.show();
}
});
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="@+id/time_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click Me"
android:textSize="24sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
time_dialog.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="16dp"
android:gravity="center"
android:orientation="horizontal">
<NumberPicker
android:id="@+id/numpicker_hours"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<NumberPicker
android:id="@+id/numpicker_minutes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp" />
<NumberPicker
android:id="@+id/numpicker_seconds"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<View
android:id="@+id/view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#ffF0F0F0" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<Button
android:id="@+id/cancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@android:color/transparent"
android:text="Cancel"
android:textAllCaps="false" />
<View
android:id="@+id/view2"
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#ffF0F0F0" />
<Button
android:id="@+id/ok"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@android:color/transparent"
android:text="OK"
android:textAllCaps="true" />
</LinearLayout>
</LinearLayout>
来源：https://stackoverflow.com/questions/7847623/how-to-pick-a-second-using-timepicker-android