请帮我写完整的可以运行的代码。利用一个Timepicker控件和一个imagebutton实现闹钟功能。通过点击按钮,开启闹钟,再次点击按钮,关闭闹钟。闹钟触发时循环播放MP3音乐,点击按钮可取消播放。
时间: 2023-03-27 20:00:57 浏览: 47
好的,以下是可以运行的代码:
XML布局文件:
```
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TimePicker
android:id="@+id/timePicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
<ImageButton
android:id="@+id/alarmButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/timePicker"
android:layout_centerHorizontal="true"
android:src="@drawable/ic_alarm_off" />
</RelativeLayout>
```
Java代码:
```
public class MainActivity extends AppCompatActivity {
private TimePicker timePicker;
private ImageButton alarmButton;
private MediaPlayer mediaPlayer;
private boolean isPlaying = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
timePicker = findViewById(R.id.timePicker);
alarmButton = findViewById(R.id.alarmButton);
alarmButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (!isPlaying) {
setAlarm();
} else {
cancelAlarm();
}
}
});
}
private void setAlarm() {
int hour = timePicker.getCurrentHour();
int minute = timePicker.getCurrentMinute();
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, hour);
calendar.set(Calendar.MINUTE, minute);
calendar.set(Calendar.SECOND, );
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, , intent, );
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
isPlaying = true;
alarmButton.setImageResource(R.drawable.ic_alarm_on);
mediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.alarm_sound);
mediaPlayer.setLooping(true);
mediaPlayer.start();
}
private void cancelAlarm() {
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, , intent, );
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
isPlaying = false;
alarmButton.setImageResource(R.drawable.ic_alarm_off);
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
```
广播接收器代码:
```
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Intent alarmIntent = new Intent(context, AlarmActivity.class);
alarmIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(alarmIntent);
}
}
```
闹钟触发时播放音乐的Activity代码:
```
public class AlarmActivity extends AppCompatActivity {
private Button cancelButton;
private MediaPlayer mediaPlayer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_alarm);
cancelButton = findViewById(R.id.cancelButton);
cancelButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mediaPlayer.stop();
finish();
}
});
mediaPlayer = MediaPlayer.create(this, R.raw.alarm_sound);
mediaPlayer.setLooping(true);
mediaPlayer.start();
}
@Override
protected void onDestroy() {
super.onDestroy();
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
```
请注意,以上代码仅供参考,实际使用时可能需要根据具体需求进行修改。
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