Question

我正在编写一个应用程序，我想循环播放视频，布局滑动到50％的垂直标记。我还希望将布局背景设为白色，透明度约为50-60％。我已经找到了如何循环视频，我在不同的活动中有我需要的布局，并且我将动画向上滑动＆amp;下来，我很困惑的是如何将我的XML文件布局映射到布局列表以及如何调用它们以向上滑动以及如何处理它们的内部事件，也就是OnClick-s等等。

MainActivity：

public class MainActivity extends Activity{


    private VideoView myVideoView;
    private MediaController mediaControls=null;
    private int position = 0;
    private String ppm_val=null;
    private TextView distance;
    private AdkReadTask mAdkReadTask;
    private int myInt = -10;
    private TextView tv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        View decorView = getWindow().getDecorView();
        int uiOptions = View.SYSTEM_UI_FLAG_LOW_PROFILE
                | View.SYSTEM_UI_FLAG_FULLSCREEN;
        decorView.setSystemUiVisibility(uiOptions);
        buttonLED = (ToggleButton) findViewById(R.id.toggleButtonLed);
        distance  = (TextView) findViewById(R.id.textViewIntro);
        buttonLED.setVisibility(View.INVISIBLE);
        tv = (TextView) findViewById(R.id.ppm);


        Animation slide_down = AnimationUtils.loadAnimation(getApplicationContext(),
                R.anim.slide_down);

        final Animation slide_up = AnimationUtils.loadAnimation(getApplicationContext(),
                R.anim.slide_up);



        myVideoView = (VideoView) findViewById(R.id.videoView);
        Display display = getWindowManager().getDefaultDisplay();
        Point size = new Point();
        display.getSize(size);
        myVideoView.getHolder().setFixedSize(size.x, size.y);
        tv.setText(""+size.x+":"+size.y);

        try {
            //set the uri of the video to be played
            myVideoView.setVideoURI(Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.test758));

        } catch (Exception e) {
//          Log.e("Error", e.getMessage());
//          e.printStackTrace();
        }

        //we also set an setOnPreparedListener in order to know when the video file is ready for playback
        myVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {

            public void onPrepared(MediaPlayer mediaPlayer) {

                mediaPlayer.setLooping(true);
                myVideoView.seekTo(position);
                if (position == 0) {
                    myVideoView.start();
                } else {
                    //if we come from a resumed activity, video playback will be paused
                    myVideoView.pause();
                }
            }
        });

        if (((MyApplication) this.getApplication()).checkNull()) {
            ((MyApplication) this.getApplication()).init(this);
            ((MyApplication) this.getApplication()).open();

        }

        if (mAdkReadTask==null) {
            mAdkReadTask = new AdkReadTask();
            mAdkReadTask.execute();
        }
    }



    @Override
    public void onResume() {
        super.onResume();
        ((MyApplication) this.getApplication()).write("1");
    }

    @Override
    public void onPause() {
        super.onPause();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
    }


    public String output="";
    String[] sarr = new String[3];
    /* 
     * We put the readSerial() method in an AsyncTask to run the 
     * continuous read task out of the UI main thread
     */
    private class AdkReadTask extends AsyncTask<Void, String, String> {

        private boolean running = true;

        public void pause(){
            running = false;
        }
        public void start(){
            running = true;
        }
        private int cnt = 0;
        @Override
        protected String doInBackground(Void... params) {

            while(running) {


                if (this.isCancelled())
                    break;

                String s = ((MyApplication) getApplication()).read();
                if (s.charAt(0)=='R'){
                    running = false;
                }
                cnt++;
                publishProgress(s);
            }

            return output;
        }

        @Override
        protected void onProgressUpdate(String... progress) {
            if(progress[0].charAt(0)=='P') {
                tv.setText("Air quality: " + progress[0].substring(1, progress[0].length()));
                ppm_val = progress[0].substring(1, progress[0].length());
                ((MyApplication) getApplication()).setPPM(ppm_val);
            }
        }
        @Override
        protected void onPostExecute(String result){
            next();
        }
    }

    private void next() {
        final Intent intent = new Intent(this, BuyRecycleActivity.class );
        new android.os.Handler().postDelayed(
                new Runnable() {
                    public void run() {
                        startActivity(intent);
                    }
                },
                1000);
    }

}

slide_up.xml：

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="1000"
        android:fromYDelta="100%"
        android:toYDelta="0" />
</set>

slide_down.xml：

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="1000"
        android:fromYDelta="0"
        android:toYDelta="100%" />
</set>

编辑1： 代码已添加。我只需要将BuyRecycleActivity的布局从50％的主要活动底部向上滑动，同时视频仍在播放

Answer 1

使用include布局解决。然后默认设置它们不可见。

使用向上滑动布局在“活动”中播放视频

1 个答案: