如何在 android studio 中制作随机播放列表按钮和重复播放按钮

Question

我不知道如何将此代码转换为 android studio 我被困了 2 天，无法弄清楚请帮助我

btnRepeat.setOnClickListener(新View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
            if(isRepeat){
                isRepeat = false;
                Toast.makeText(getApplicationContext(), "Repeat is OFF", Toast.LENGTH_SHORT).show();
                btnRepeat.setImageResource(R.drawable.btn_repeat);
            }else{
                // make repeat to true
                isRepeat = true;
                Toast.makeText(getApplicationContext(), "Repeat is ON", Toast.LENGTH_SHORT).show();
                // make shuffle to false
                isShuffle = false;
                btnRepeat.setImageResource(R.drawable.btn_repeat_focused);
                btnShuffle.setImageResource(R.drawable.btn_shuffle);
            }
        }
    });

还有一个

btnShuffle.setOnClickListener(新View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
            if(isShuffle){
                isShuffle = false;
                Toast.makeText(getApplicationContext(), "Shuffle is OFF", Toast.LENGTH_SHORT).show();
                btnShuffle.setImageResource(R.drawable.btn_shuffle);
            }else{
                // make repeat to true
                isShuffle= true;
                Toast.makeText(getApplicationContext(), "Shuffle is ON", Toast.LENGTH_SHORT).show();
                // make shuffle to false
                isRepeat = false;
                btnShuffle.setImageResource(R.drawable.btn_shuffle_focused);
                btnRepeat.setImageResource(R.drawable.btn_repeat);
            }
        }
    });

这是最后一段代码

@Override public void onCompletion(MediaPlayer arg0) {

    // check for repeat is ON or OFF
    if(isRepeat){
        // repeat is on play same song again
        playSong(currentSongIndex);
    } else if(isShuffle){
        // shuffle is on - play a random song
        Random rand = new Random();
        currentSongIndex = rand.nextInt((songsList.size() - 1) - 0 + 1) + 0;
        playSong(currentSongIndex);
    } else{
        // no repeat or shuffle ON - play next song
        if(currentSongIndex < (songsList.size() - 1)){
            playSong(currentSongIndex + 1);
            currentSongIndex = currentSongIndex + 1;
        }else{
            // play first song
            playSong(0);
            currentSongIndex = 0;
        }
    }
}

Answer 1

您应该使用切换按钮之类的东西！而不是普通按钮，因此您不必关心打开和关闭的内容！这里是 JavaDoc：

http://developer.android.com/reference/android/widget/ToggleButton.html

并且这个 link 包含一个关于如何在您的代码中使用它的很好的教程：

http://www.mkyong.com/android/android-togglebutton-example/

如何在 android studio 中制作随机播放列表按钮和重复播放按钮

How do I make shuffle playlist button and repeat button in android studio

android

shuffle

button

repeat

android-studio