带计时器的自动静音 Android 设备设置我的用户

我的应用程序中有 2 个按钮 开始时间和结束时间

现在我希望设备在用户设置的开始和结束持续时间内进入静音模式......我该怎么做？

我的用于获取开始时间和结束时间输入的代码mainactivity.java code包 com.example.h.manualsilent；

public class MainActivity extends AppCompatActivity {
TimePickerDialog tpd;
SimpleDateFormat simpleDateFormat;
String time;
Button sttime;
Button entime;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    sttime=(Button)findViewById(R.id.startbtn);
    entime=(Button)findViewById(R.id.endbtn);
}
public void starttime(View view){
    Calendar cal=Calendar.getInstance();
    simpleDateFormat=new SimpleDateFormat("hh:mm a");
    int hour=cal.get(Calendar.HOUR);
    int minute=cal.get(Calendar.MINUTE);

    //int inst=cal.get(Calendar.AM_PM);
    tpd=new TimePickerDialog(MainActivity.this, new 
    TimePickerDialog.OnTimeSetListener() {

        @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
    Time time = new Time(hourOfDay, minute,0);

            //little h uses 12 hour format and big H uses 24 hour format
    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("h:mm a");

            //format takes in a Date, and Time is a sublcass of Date
            String s = simpleDateFormat.format(time);
            sttime.setText(s);
        }
    },hour,minute,false);
    tpd.show();
    }
    public void endtime(View view){
    Calendar cal=Calendar.getInstance();
    int hour=cal.get(Calendar.HOUR);
    int minute=cal.get(Calendar.MINUTE);
    //int inst=cal.get(Calendar.AM_PM);
    tpd=new TimePickerDialog(MainActivity.this, new 
    TimePickerDialog.OnTimeSetListener() {

        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        Time time = new Time(hourOfDay, minute,0);

            //little h uses 12 hour format and big H uses 24 hour format
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("h:mm a");

            //format takes in a Date, and Time is a sublcass of Date
            String s = simpleDateFormat.format(time);
            entime.setText(s);
        }
        },hour,minute,false);
        tpd.show();
        }
        }

您可以使用AudioManager class.

在这堂课中，您正在寻找setRingerMode()功能。

AudioManager audiomanage = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
audiomanage.setRingerMode(AudioManager.RINGER_MODE_SILENT);

您可以传递给函数的值是：

振铃模式，其中之一RINGER_MODE_NORMAL, RINGER_MODE_SILENT, or RINGER_MODE_VIBRATE.

您必须将其添加到清单文件中：

android.permission.MODIFY_AUDIO_SETTINGS

我在这里看到了这个—— https://stackoverflow.com/a/3738768/8214839 https://stackoverflow.com/a/3738768/8214839