Question

我不知道如何将此代码转换为android工作室我被困在它上面2天并且无法弄明白Plz帮助我

btnRepeat.setOnClickListener（new 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);
            }
        }
    });

和另一个

btnShuffle.setOnClickListener（new 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);
            }
        }
    });

这是最后一批代码

@覆盖 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

你应该使用类似切换按钮的东西！而不是一个普通的按钮，所以你不必关心打开和关闭什么！这里是JavaDoc：

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

此链接包含一个很好的教程，介绍如何在代码中使用它：

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按钮

1 个答案: