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我想随机显示 5 个 xml 布局，并且我会在单击每个出现的 xml 文件的相应按钮时将它们随机播放。到目前为止，下面的代码工作得非常好。---- **我在 xml 文件的每次随机播放上都设置了 0.75 秒的延迟。在这个延迟中，我有声音可以播放。我真的不知道如何实现这一点.在下面的代码中，我使用了 Switch-Case ，但它不起作用。我的要求是如果我单击 xml file1 上的按钮，我想播放 Sound1，如果 Button 来自 Xml 文件 5，我想播放相应的 Sound5 等等....像这样持续 0.75 秒并移动到下一个 XML 文件并重复循环。* ----

public class ReceivingActivity extends Activity{

    Random random = new Random();
    Handler handler = new Handler();
    private int mPosition = 0;
    private Handler mHandler = new Handler();
    private List<Integer> mLayouts;
    private Button mButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
                mLayouts = new ArrayList<Integer>();
                mLayouts.add(R.layout.first);
                mLayouts.add(R.layout.second);
                mLayouts.add(R.layout.third);
                mLayouts.add(R.layout.fourth);
                mLayouts.add(R.layout.fifth);

                Collections.shuffle(mLayouts);
                setContentView(mLayouts.get(mPosition));

                mButton = (Button)findViewById(R.id.btnid);
                mButton.setOnClickListener(mListener);
                mPosition++;
    }

    private OnClickListener mListener = new OnClickListener() {

        @Override
        public void onClick(View v) {



            // TODO Auto-generated method stub
            mHandler.postDelayed(new Runnable() {

                @Override
                public void run() {
                    Toast.makeText(getApplicationContext(), "WTH is happening", Toast.LENGTH_SHORT).show();
                    // TODO Auto-generated method stub
                    if(mPosition >= mLayouts.size()){
                        int lastId = mLayouts.get(mLayouts.size() - 1);
                        Collections.shuffle(mLayouts);
                        while (lastId == mLayouts.get(0)) {
                            Collections.shuffle(mLayouts);
                        }
                        mPosition = 0;
                    }
                    setContentView(mLayouts.get(mPosition));


                switch (mLayouts.get(mPosition)) {
                    case R.layout.first:
                        Toast.makeText(getApplicationContext(), "First", Toast.LENGTH_SHORT).show();

                        iv1.setBackgroundResource(R.drawable.ic_launcher);
                        break;

                    case R.layout.second:
                        Toast.makeText(getApplicationContext(), "second", Toast.LENGTH_SHORT).show();
    //Some sound                     
                        iv2.setBackgroundResource(R.drawable.ic_launcher);

                        break;

                    case R.layout.third:
                        Toast.makeText(getApplicationContext(), "third", Toast.LENGTH_SHORT).show();
    //Some media , Different for each Layout.. 

                        iv3.setBackgroundResource(R.drawable.ic_launcher);

                        break;  

                    case R.layout.fourth:
                        Toast.makeText(getApplicationContext(), "fourth", Toast.LENGTH_SHORT).show();
                        iv4.setBackgroundResource(R.drawable.ic_launcher);

                        break;

                    case R.layout.fifth:
                        Toast.makeText(getApplicationContext(), "fifth", Toast.LENGTH_SHORT).show();

                        iv5.setBackgroundResource(R.drawable.ic_launcher);

                        break;  
                    default:
                        break;
                    }


                    mPosition++;
                    mButton = (Button)findViewById(R.id.btnid);
                    mButton.setOnClickListener(mListener);
                }

            }, 2050);
        }
    };


                    mPosition++;
                    mButton = (Button)findViewById(R.id.btnid);
                    mButton.setOnClickListener(mListener);
                }
            }, 750);
        }
    };
}

任何形式的帮助都非常有帮助。

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1 回答 1

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您可以使用 android:tag 来区分按钮。

<Button
    ...
    android:tag="1"/>

然后在代码中检索标签

mButton = (Button)findViewById(R.id.btnid);
int id = Integer.parseInt(mButton.getTag());

switch(id) {
    ...
}
于 2013-03-14T10:32:29.913 回答