Question

如何在没有取消按钮的情况下创建Android时间戳？我原以为setCancelable（false）会这样做，但是没有摆脱按钮，它似乎只是防止取消点击窗口外面或后退按钮。

Answer 1

如果您想使用TimePickerDialog，则非常简单。您只需要检测对话框何时显示，查找NEGATIVE按钮，因为它提供“取消”按钮，并将其可见性设置为GONE。如下所示：

final TimePickerDialog timePicker = new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
         // Do something with the time
    }
}, 12, 25, true); // 12 is the hour and 25 is minutes..please change this

timePicker.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(DialogInterface dialog) {
        // This is hiding the "Cancel" button:
        timePicker.getButton(Dialog.BUTTON_NEGATIVE).setVisibility(View.GONE);
    }
});
timePicker.show();

Answer 2

如果您不想要时间选择器的取消按钮，最好在xml文件中使用时间选择器，如：

<TimePicker
   android:id="@+id/timePicker1"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content" />

你的活动应该是：

import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.TextView;
import android.widget.TimePicker;

public class MainActivity extends Activity {
   private TimePicker timePicker1;
   private TextView time;
   private Calendar calendar;
   private String format = "";

   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);

      timePicker1 = (TimePicker) findViewById(R.id.timePicker1);
      time = (TextView) findViewById(R.id.textView1);
      calendar = Calendar.getInstance();

      int hour = calendar.get(Calendar.HOUR_OF_DAY);
      int min = calendar.get(Calendar.MINUTE);
      showTime(hour, min);
  }

  public void setTime(View view) {
     int hour = timePicker1.getCurrentHour();
     int min = timePicker1.getCurrentMinute();
     showTime(hour, min);
  }

  public void showTime(int hour, int min) {
     if (hour == 0) {
        hour += 12;
        format = "AM";
     }
     else if (hour == 12) {
        format = "PM";
     } else if (hour > 12) {
        hour -= 12;
        format = "PM";
     } else {
        format = "AM";
     }
     time.setText(new StringBuilder().append(hour).append(" :     ").append(min)
  .append(" ").append(format));
  }


 }

这是供参考，希望这对你有帮助..谢谢：）

没有取消按钮的Timepicker？

2 个答案: