kiv.janecekz.ma.RecorderFragment.java Source code

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Here is the source code for kiv.janecekz.ma.RecorderFragment.java

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/*
Musicians Assistant
Copyright (C) 2012-2014  Zdenk Jane?ek <jan.zdenek@gmail.com>
    
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package kiv.janecekz.ma;

import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.RelativeLayout.LayoutParams;
import android.widget.TextView;
import android.widget.Toast;

import java.io.File;

import kiv.janecekz.ma.common.Recorder;
import kiv.janecekz.ma.common.SharedData;
import kiv.janecekz.ma.rec.WavWriter;

public class RecorderFragment extends Fragment implements IControlable, Informable {
    private final String[] dots = { " .", " . .", " . . ." };

    private ImageView circle;
    private AlphaAnimation inAnim;
    private AlphaAnimation outAnim;
    private AlphaAnimation inAnimPr;
    private AlphaAnimation outAnimPr;
    private WavWriter wav;
    private Recorder r;
    private SharedData sd;
    // private TextView recTitleText;
    private TextView recStatusText;
    private ProgressBar progress;
    private File lastRecorded;
    private Handler mHandler = new Handler();
    private int dotCounter = 0;

    private Runnable mUpdateTimeTask = new Runnable() {
        @Override
        public void run() {
            String dot = dots[dotCounter];

            recStatusText.setText(getResources().getText(R.string.recording) + dot);
            dotCounter = (dotCounter + 1) % dots.length;
            mHandler.postDelayed(this, 1000);
        }
    };

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View v = inflater.inflate(R.layout.recorder, container, false);
        RelativeLayout space = (RelativeLayout) v.findViewById(R.id.sunspace);
        space.setOnTouchListener(TouchControl.getInstance());

        circle = (ImageView) v.findViewById(R.id.circle);

        inAnim = TouchControl.getAnimation(TouchControl.ANIMATION_IN, 300);
        outAnim = TouchControl.getAnimation(TouchControl.ANIMATION_OUT, 300);
        inAnimPr = TouchControl.getAnimation(TouchControl.ANIMATION_IN, 1000);
        outAnimPr = TouchControl.getAnimation(TouchControl.ANIMATION_OUT, 1000);

        recStatusText = (TextView) v.findViewById(R.id.rec_status);
        // recTitleText = (TextView) v.findViewById(R.id.rec_title);

        progress = (ProgressBar) v.findViewById(R.id.progress);

        return v;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        if (r != null && r.isRecording()) {
            r.stopRecording();
            try {
                wav.join();
                r.join();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            Toast.makeText(getActivity(),
                    getResources().getString(R.string.recorded) + " " + lastRecorded.getName(), Toast.LENGTH_SHORT)
                    .show();
        }
    }

    @Override
    public void onPause() {
        super.onPause();

        mHandler.removeCallbacks(mUpdateTimeTask);
    }

    @Override
    public void onResume() {
        super.onResume();

        getView().setBackgroundResource(((MainActivity) getActivity()).getBgRes());

        if (r != null && r.isRecording()) {
            mHandler.postDelayed(mUpdateTimeTask, 1000);
            progress.setVisibility(View.VISIBLE);
            progress.startAnimation(inAnimPr);
        } else {
            progress.setVisibility(View.INVISIBLE);
        }
    }

    @Override
    public void onValueChange(TouchControl t, int val) {
        // Not used
    }

    @Override
    public void onToggle(TouchControl t, int state) {
        switch (state) {
        case TouchControl.STATE_BEGIN:
            circle.setVisibility(View.VISIBLE);
            circle.startAnimation(inAnim);
            break;
        case TouchControl.STATE_TOGGLE:
            if (r == null || !r.isRecording()) {
                progress.setVisibility(View.VISIBLE);
                progress.startAnimation(inAnimPr);
                mHandler.postDelayed(mUpdateTimeTask, 1000);
                sd = new SharedData(4092);
                r = new Recorder(sd, 44100);
                r.start();

                lastRecorded = getNextFile();
                wav = new WavWriter(sd, r, lastRecorded);
                wav.start();
            } else {
                r.stopRecording();
                try {
                    wav.join();
                    r.join();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                mHandler.removeCallbacks(mUpdateTimeTask);
                recStatusText.setText("");
                Toast.makeText(getActivity(),
                        getResources().getString(R.string.recorded) + " " + lastRecorded.getName(),
                        Toast.LENGTH_SHORT).show();
                progress.startAnimation(outAnimPr);
                progress.setVisibility(View.INVISIBLE);
            }
            break;
        case TouchControl.STATE_OUT:
            if (!inAnim.hasEnded())
                inAnim.cancel();
            circle.startAnimation(outAnim);
            circle.setVisibility(View.INVISIBLE);
            break;
        default:
            break;
        }
    }

    @Override
    public void onPositionChange(TouchControl t, int x, int y) {
        RelativeLayout.LayoutParams pars = (LayoutParams) circle.getLayoutParams();
        pars.setMargins(x - circle.getWidth() / 2, y - circle.getHeight() / 2, 0, 0);

        circle.setLayoutParams(pars);
    }

    @Override
    public void postInformation(Double inf) {
        // will be used for amplitude view
    }

    private File getNextFile() {
        String extension = ".wav";
        File f;

        int i = 1;
        while (true) {
            f = new File(Environment.getExternalStorageDirectory().getPath() + "/rec" + (i++) + extension);

            if (!f.exists())
                break;
        }
        return f;
    }
}