在Android中,您可以使用TelecomManager和ConnectionService API来管理呼叫。为了在不显示本地呼叫界面的情况下向Telecom报告呼叫,您可以使用ConnectionService的onPlaceOutgoingCall方法。在该方法中,您可以创建一个Connection对象,并使用Connection.onStateChanged方法将呼叫状态更改为CONNECTING,之后是DIALING,最后是CONNECTED。在这里是一个简单的示例代码:
public class MyConnectionService extends ConnectionService { @Override public Connection onCreateOutgoingConnection(PhoneAccountHandle connectionManagerPhoneAccount, ConnectionRequest request) { MyConnection connection = new MyConnection(); connection.setAddress(request.getAddress(), TelecomManager.PRESENTATION_ALLOWED); connection.setConnectionCapabilities(Connection.CAPABILITY_CAN_DIAL_OUT); connection.setState(Connection.STATE_INITIALIZING); connection.setOnHold(); return connection; }
private class MyConnection extends Connection {
@Override
public void onStateChanged(int state) {
super.onStateChanged(state);
if (state == Connection.STATE_CONNECTING) {
// The call is being connected
} else if (state == Connection.STATE_DIALING) {
// The number is being dialed
} else if (state == Connection.STATE_ACTIVE) {
// The call has been connected
} else if (state == Connection.STATE_DISCONNECTED) {
// The call has ended
}
}
}
}
在此示例中,我们使用MyConnectionService扩展ConnectionService,并覆盖了onCreateOutgoingConnection方法来创建一个Connection对象。在MyConnection类中,我们添加了onStateChanged回调方法来处理呼叫状态更改事件,即CONNECTING,DIALING,CONNECTED和DISCONNECTED。
当使用Connection.onStateChanged方法时,您可以通过检查状态代码来确定呼叫的当前状态,并相应地采取适当的行动。
此外,如果您希望使用系统默认的闹钟音调来替换播放DTMF音调,则