使用JavaFX编写的API,从任何音频文件创建波谱

# audio-waveform (for Android) -------------------------- ##What #####Show audio file's <strong>waveform</strong>, not spectrum. #####This lib based on ringdroid, but only contains WaveformView and related classes. <br/> ##How * Add this to your build.gradle</br> `compile 'com.github.derlio.waveform:library:1.0.3@aar'` * Use **SimpleWaveformView** in your layout<br/> ``` <com.github.derlio.waveform.SimpleWaveformView android:id="@+id/waveform" android:layout_width="match_parent" android:layout_height="144dp" app:waveformColor="#fb6155" app:indicatorColor="@android:color/holo_green_dark" /> ``` <strong>*app:waveformColor*</strong> is the waveform line's color, <strong>*app:indicatorColor*</strong> is the current playing indicator's color. * Then get it from Activity, and prepare your audio file ``` final File file = new File(dir, "qudali.mp3"); final SoundFile soundFile = SoundFile.create(file.getPath(), new SoundFile.ProgressListener() { int lastProgress = 0; @Override public boolean reportProgress(double fractionComplete) { final int progress = (int) (fractionComplete * 100); if (lastProgress == progress) { return true; } lastProgress = progress; Log.i(TAG, "LOAD FILE PROGRESS:" + progress); return true; } }); ``` ***Make sure below codes should not be in the Main Thread.*** User **SoundFile.ProgressListener** to get file load progress, param **fractionComplete** is from 0.0 to 1.0, and return *true* means to continue decode, return *false* will abort the decode. * Then use ``` mWaveformView.setAudioFile(soundFile); mWaveformView.invalidate(); ``` to set the audio file to WaveformView. It does work. * If you want to show current playing indicator, just implements **SimpleWaveformView.WaveformListener**, use below codes in **onWaveformDraw**. ``` int now = mPlayer.getCurrentPosition(); mWaveformView.setPlaybackPosition(now); ``` <br/> This library is just satisfied my current situation. It has much more works to do. Hope you can help me~