以语音识别功能为例说明MVP实现

model接口以及实现类：

/**
 * Model执行业务逻辑，需要的操作开始包括语音识别、停止识别、释放资源，分别对应语音sdk的start、stop、release操作
 */
public interface IAsrModel {

    void start(AppConfig appConfig,AsrConfig asrConfig,AsrListener asrListener);
    void stop();
    void release();

}

public class AsrModel implements IAsrModel {
    @Override
    public void start(AppConfig appConfig, AsrConfig asrConfig, AsrListener asrListener) {
        //创建语音sdk引擎，传入AppConfig appConfig, AsrConfig asrConfig, AsrListener asrListener，开始语音识别
    }

    @Override
    public void stop() {
        // 调用语音引擎的stop，停止语音识别
    }

    @Override
    public void release() {
        //调用语音引擎的release，释放资源
    }
}

view接口以及实现类：

public interface IAsrView {
    //获取语音参数配置
    AsrConfig getAsrConfig();
    //获取App配置
    AppConfig getAppConfig();
    //弹出语音识别对话框
    void showDialog();
    //更新音频波浪线
    void updateAudioWave(double value);
    //更新textView中的语音识别结果
    void updateAsrResult(String asrResult);
    //语音识别对话框消失
    void dismissDialog();
}

public class AsrActivity extends Activity implements IAsrView ,View.OnClickListener{
    final int START_BTN = 1;
    final int STOP_BTN = 2;
    private IPresenter iPresenter = new AsrPresenter(this);
    private EditText languageCodeEt;
    private CheckBox autoStopCb;
    private Button startAsrBtn;
    private Button stopAsrBtn;

    private TextView asrResultTv;
    private Dialog dialog;
    //音频波浪线
    private View audioWaveView;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_asr);
        initView();
    }

    private void initView() {
        //省去findViewById

    }
    @Override
    public AsrConfig getAsrConfig() {
        return new AsrConfig(languageCodeEt.toString(),autoStopCb.isChecked());
    }

    @Override
    public AppConfig getAppConfig() {
        return new AppConfig("appid","appkey","packagename","appversion");
    }

    @Override
    public void showDialog() {
        dialog.show();
    }

    @Override
    public void updateAudioWave(double value) {
        //audioWaveView显示音频波浪线
    }

    @Override
    public void updateAsrResult(String asrResult) {
        asrResultTv.setText(asrResult);
    }

    @Override
    public void dismissDialog() {
        dialog.dismiss();
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case START_BTN:
                iPresenter.start();
                break;
            case STOP_BTN:
                iPresenter.stop();
                break;
        }
    }
}

presenter接口以及实现类：

public interface IPresenter {
    void start();
    void stop();
    void release();
}


public class AsrPresenter implements IPresenter {

    private IAsrModel asrModel;
    private IAsrView asrView;

    public AsrPresenter(IAsrView asrView) {
        asrModel = new AsrModel();
        this.asrView = asrView;
    }
    @Override
    public void start() {
        //弹出语音识别对话框
        asrView.showDialog();
        //开始语音识别业务逻辑
        asrModel.start(asrView.getAppConfig(), asrView.getAsrConfig(), new AsrListener() {
            @Override
            public void onStart() {

            }

            @Override
            public void onNext(String asrResult) {
                //拿到了语音识别结果更新界面
                asrView.updateAsrResult(asrResult);
            }

            @Override
            public void onAudioData(short[] audioData, double dbValue) {
                //拿到了音频的分贝，更新界面上的语音波浪
                asrView.updateAudioWave(dbValue);
            }

            @Override
            public void onComplete() {
                //语音结束，弹出框消失并释放资源
                asrView.dismissDialog();
                release();
            }

            @Override
            public void onError(int errorCode) {
                //语音出错，弹出框消失并释放资源
                asrView.dismissDialog();
                release();
            }
        });
    }

    @Override
    public void stop() {
        //停止语音识别
        asrModel.stop();
    }

    @Override
    public void release() {
        //释放资源
        asrModel.release();
    }
}

bean对象：

public class AsrConfig {
    private String languageCode;//语言种类
    private boolean isAutoStop;//识别过程中，用户停顿的话是否需要自动停止

    public AsrConfig(String languageCode, boolean isAutoStop) {
        this.languageCode = languageCode;
        this.isAutoStop = isAutoStop;
    }

    public String getLanguageCode() {
        return languageCode;
    }

    public void setLanguageCode(String languageCode) {
        this.languageCode = languageCode;
    }

    public boolean isAutoStop() {
        return isAutoStop;
    }

    public void setAutoStop(boolean autoStop) {
        isAutoStop = autoStop;
    }
}


/**
 * 使用方App的一些数据，语音sdk需要
 */
public class AppConfig {
    private String appId;

    public AppConfig(String appId, String appKey, String packageName, String appVersion) {
        this.appId = appId;
        this.appKey = appKey;
        this.packageName = packageName;
        this.appVersion = appVersion;
    }

    private String appKey;
    private String packageName;
    private String appVersion;
}