小编dro*_*421的帖子

我正在尝试使用AudioTrack课程.基本上,我的应用程序必须在用户触摸屏幕上的特定对象时生成声音.我用这个例子作为指导.
我的应用程序似乎应该工作,但通常在触摸屏幕约一分钟后崩溃:

07-02 20:40:53.459: E/AndroidRuntime(11973): FATAL EXCEPTION: Thread-10
07-02 20:40:53.459: E/AndroidRuntime(11973): java.lang.IllegalStateException: play() called on uninitialized AudioTrack.
07-02 20:40:53.459: E/AndroidRuntime(11973):    at android.media.AudioTrack.play(AudioTrack.java:824)
07-02 20:40:53.459: E/AndroidRuntime(11973):    at com.mysounds_experimental.SoundThread.playSound(SoundThread.java:108)
07-02 20:40:53.459: E/AndroidRuntime(11973):    at com.mysounds_experimental.SoundThread.run(SoundThread.java:69)

来自生成声音的类的方法

public void initAudioTrack() {
        int bufferSize = AudioTrack.getMinBufferSize(sampleRate
                , AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT);

        audioTrack = new AudioTrack(
                AudioManager.STREAM_MUSIC
                , sampleRate
                , AudioFormat.CHANNEL_CONFIGURATION_MONO
                , AudioFormat.ENCODING_PCM_16BIT
                , bufferSize
                , AudioTrack.MODE_STREAM);
    }

   private void playSound(){
            audioTrack.write(generatedSnd, 0, numSamples);
            audioTrack.play();
        }

public void stopPlaying() {
    audioTrack.flush();
    audioTrack.stop(); 
    audioTrack.release();
}

@Override
    public …

在我的应用程序中,我正在使用带有PagerTabStrip的ViewPager,我需要将自定义字体设置为我的小部件.要为a Button或a 设置字体,TextView我只需扩展类并设置字体.

public class MyButton extends Button {

    public MyButton(Context context) {
        super(context);
        initCustomFont();
    }

    public MyButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        initCustomFont();
    }

    public MyButton(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initCustomFont();
    }

    private void initCustomFont() {
        if(!isInEditMode()) {
            Typeface tf = Typeface.createFromAsset(getContext().getAssets(), "fonts/boton_regular.ttf");
            setTypeface(tf);
        }
    }
}

但我不能用这种方法PagerTabStrip.有没有其他方法来设置可以使用的字体PagerTabStrip？