Java 如何从android的libpd接收数据
我如何从Pd接收数据到我的Android应用程序?我已经设法向Pd发送了一个浮点,并在Pd上模拟了一个接收对象,以查看我期望的结果。这是我到目前为止所拥有的Java 如何从android的libpd接收数据,java,android,puredata,libpd,Java,Android,Puredata,Libpd,我如何从Pd接收数据到我的Android应用程序?我已经设法向Pd发送了一个浮点,并在Pd上模拟了一个接收对象,以查看我期望的结果。这是我到目前为止所拥有的 public class MainActivity extends AppCompatActivity { private PdUiDispatcher dispatcher; Button newActivity; Switch highLow; @Override protected void onCreate(Bundle sav
public class MainActivity extends AppCompatActivity {
private PdUiDispatcher dispatcher;
Button newActivity;
Switch highLow;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initGUI();
try{
initPD();
loadPD_Patch();
loadPD_RecordPatch();
}catch (IOException error){
Log.e("Pd initialization error", String.valueOf(error));
}
}
private void initGUI(){
Switch onOffSwitch = (Switch) findViewById(R.id.onOffSwitch);
highLow = (Switch)findViewById(R.id.highLow);
newActivity = (Button) findViewById(R.id.newActivity);
onOffSwitch.setOnCheckedChangeListener(
new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
float val = (isChecked) ? 1.0f : 0.0F;
PdBase.sendFloat("onOff", val);
}
}
);
}
private void initPD() throws IOException{
int sampleRate = AudioParameters.suggestSampleRate();
PdAudio.initAudio(sampleRate,0,2,8,true);
dispatcher = new PdUiDispatcher();
PdBase.setReceiver(dispatcher);
dispatcher.addListener("highLow", myListener);
}
private void loadPD_Patch() throws IOException{
File dir = getFilesDir();
IoUtils.extractZipResource(getResources().openRawResource(R.raw.simple_android_patch), dir, true);
File pdPatch = new File(dir,"simple_android_patch.pd");
PdBase.openPatch(pdPatch.getAbsoluteFile());
}
private void loadPD_RecordPatch() throws IOException{
File dir = getFilesDir();
IoUtils.extractZipResource(getResources().openRawResource(R.raw.audio_in_android), dir, true);
File pdPatch = new File(dir,"audio_in_android.pd");
PdBase.openPatch(pdPatch.getAbsoluteFile());
}
private final PdListener myListener = new PdListener() {
@Override
public void receiveMessage(String source, String symbol, Object... args) {
Log.i("receiveMessage symbol:", symbol);
for (Object arg: args) {
Log.i("receiveMessage atom:", arg.toString());
}
}
/* Receive a list from Pd */
@Override
public void receiveList(String source, Object... args) {
for (Object arg: args) {
Log.i("receiveList atom:", arg.toString());
}
}
/* Receive symbol from Pd */
@Override public void receiveSymbol(String source, String symbol) {
Log.i("receiveSymbol", symbol);
}
/* Receive float from Pd */
@Override public void receiveFloat(String source, float x) {
Log.e("highLow", String.valueOf(x));
if(x == 1.0){
highLow.setChecked(true);
}else {
highLow.setChecked(false);
}
}
/* Recieve bang from Pd */
@Override public void receiveBang(String source) {
Log.i("receiveBang", "bang!");
}
};
@Override
protected void onResume(){
super.onResume();
PdAudio.startAudio(this);
}
@Override
protected void onPause(){
super.onPause();
PdAudio.stopAudio();
}
}
这是我的Pd补丁
即使我拍手或发出噪音,终端也会持续显示它从Pd补丁的“highLow”发送对象接收0.0作为浮点数。可能是因为这个贴片无法接触到麦克风吗?我的Android清单使用权限录制音频 通过查看以下位置的PdTest代码发现: 基本上,在设置接收器之后,我们必须订阅我们感兴趣的内容。这对我很有效;以下是一个例子:
PdBase.setReceiver(pdReceiver);
PdBase.subscribe("sa-freq");
PdBase.subscribe("cent");
注
这很有效。我发现这些信息出现过一次。但是,除非您从代码触发,否则它们不会连续出现。我不知道为什么。
这可能是我也想知道答案的另一个问题!:--)(Pd终端的情况并非如此,它会在值更新时连续显示值。)它会为我发送多条消息。我只是注意到我的问题是另外一件事,很明显我应该打自己一巴掌:)。初始化pdaudio时,我将输出通道设置为4,输入通道设置为0,因此pd未使用任何输入通道。查看我的答案@rpattabi和你的样本,我看到结果是连续的。我的补丁肯定有问题。
//pdAudio.initAudio(sampleRate,inputchannels,outputchannels,ticksperbuffer,restart?)
PdAudio.initAudio(sampleRate,1,2,8,true);
/* setting Input channels to 2 on a device that has only 1 mic throws Exceptions
* Code should be improved take advantage of all input channels on different devices
*/
dispatcher = new PdUiDispatcher();
PdBase.setReceiver(dispatcher);
//dispatcher.addListener("senderObjectFromPD",Listener); in my case "highLow"
dispatcher.addListener("highLow", myListener);