Android自定义视频播放器（五）

男娘i 2022-05-16 00:09 245阅读 0赞

参看：Android自定义视频播放器（一）：[https://blog.csdn.net/zxd1435513775/article/details/81507909][https_blog.csdn.net_zxd1435513775_article_details_81507909]  
参看：Android自定义视频播放器（二）：[https://blog.csdn.net/zxd1435513775/article/details/81533053][https_blog.csdn.net_zxd1435513775_article_details_81533053]  
参看：Android自定义视频播放器（三）：[https://blog.csdn.net/zxd1435513775/article/details/81535065][https_blog.csdn.net_zxd1435513775_article_details_81535065]  
参看：Android自定义视频播放器（四）：[https://blog.csdn.net/zxd1435513775/article/details/81562032][https_blog.csdn.net_zxd1435513775_article_details_81562032]

# 一、引言 #

下面要实现，点击屏幕隐藏控制面板，若控制面板显示，则过几秒自动隐藏控制面板的效果。  
首先需要，把控制面板自定义布局加上id，并实例化。

此处也可以再media\_controller布局的根元素上加，效果一样。

# 二、隐藏和显示控制面板 #

### 1、隐藏方法 ###

/**
     * 隐藏控制面板
     */
    private void hideMediaController() {
        media_controller.setVisibility(View.GONE);
        isshowMediaController = false;    //该参数用于表示面板是否显示，默认隐藏
    }

### 2、显示方法 ###

/**
     * 显示控制面板
     */
    private void showMediaController() {
        media_controller.setVisibility(View.VISIBLE);
        isshowMediaController = true;
    }

### 3、在MyPreparedListener中设置隐藏 ###

private class MyPreparedListener implements MediaPlayer.OnPreparedListener {
        @Override
        public void onPrepared(MediaPlayer mediaPlayer) {
            //视频准备好了，进行播放
            mediaPlayer.start();
    
            //视频的总时长，并关联SeekBar的总长度
            int duration = videoView.getDuration();
            //设置SeekBar进度的总长
            seekbarVideo.setMax(duration);
            //设置视频的总时间
            tvDuration.setText(utils.stringForTime(duration));
            //发消息
            handler.sendEmptyMessage(PROGRESS);
    
            //默认是隐藏控制面板
            hideMediaController();
    
        }
    }

### 4、实现手势识别器 ###

class MySimpleOnGestureListener extends GestureDetector.SimpleOnGestureListener {
    
            //长按监听
            @Override
            public void onLongPress(MotionEvent e) {
                startAndPause();
            }
    
            //点击两次监听
            @Override
            public boolean onDoubleTapEvent(MotionEvent e) {
                //setFullScreenAndDefault();
                return super.onDoubleTapEvent(e);
            }
    
            //点击一次监听
            @Override
            public boolean onSingleTapConfirmed(MotionEvent e) {
                if (isshowMediaController) {
                    //隐藏
                    hideMediaController();
                    //把隐藏消息移除
                    handler.removeMessages(HIDE_MEDIACONTROLLER);
                } else {
                    //显示
                    showMediaController();
                    //过4秒，自动发消息隐藏控制面板消息
                    handler.sendEmptyMessageDelayed(HIDE_MEDIACONTROLLER, 4000);
                }
                return super.onSingleTapConfirmed(e);
            }

需要在初始化的时候，初始化手势识别器

//实例化手势识别器，并且重写双击，点击，长按
    detector = new GestureDetector(this, new MySimpleOnGestureListener());

需要在onTouchEvent方法中，将事件传递给手势识别器：

//3.把事件传递给手势识别器
    detector.onTouchEvent(event);

### 5、Handler消息处理 ###

case HIDE_MEDIACONTROLLER://隐藏控制面板
                    hideMediaController();
                    break;

# 三、需要注意的地方 #

#### 1、需要移除handler发送的消息的地方 ####

###### （1）声音SeekBar的事件监听处 ######

class VoiceOnSeekBarChangeListener implements SeekBar.OnSeekBarChangeListener {
    
        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
            if (fromUser) {
                if (progress > 0) {
                    isMute = false;
                } else {
                    isMute = true;
                }
                updataVoice(progress, isMute);
            }
        }
    
        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {
            handler.removeMessages(HIDE_MEDIACONTROLLER);
        }
    
        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {
            handler.sendEmptyMessageDelayed(HIDE_MEDIACONTROLLER, 4000);
        }
    }

###### （2）视频播放SeekBar的事件监听处 ######

class VideoOnSeekBarChangeListener implements SeekBar.OnSeekBarChangeListener {
    
        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
            if (fromUser) {
                videoview.seekTo(progress);
            }
    
        }
    
        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {
    
            handler.removeMessages(HIDE_MEDIACONTROLLER);
        }
    
        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {
            handler.sendEmptyMessageDelayed(HIDE_MEDIACONTROLLER, 4000);
        }
    }

###### （3）物理按键，调节声音的事件监听处 ######

/**
         * 监听物理健，实现声音的调节大小
         *
         * @param keyCode
         * @param event
         * @return
         */
        @Override
        public boolean onKeyDown(int keyCode, KeyEvent event) {
            if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
                currentVoice--;
                updataVoice(currentVoice, false);
                handler.removeMessages(HIDE_MEDIACONTROLLER);
                handler.sendEmptyMessageDelayed(HIDE_MEDIACONTROLLER, 4000);
                return true;
            } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
                currentVoice++;
                updataVoice(currentVoice, false);
                handler.removeMessages(HIDE_MEDIACONTROLLER);
                handler.sendEmptyMessageDelayed(HIDE_MEDIACONTROLLER, 4000);
                return true;
            }
            return super.onKeyDown(keyCode, event);
        }

###### （4）所有点击事件监听处 ######

@Override
        public void onClick(View v) {
            if (v == btnVoice) {
                isMute = !isMute;
                // Handle clicks for btnVoice
                updataVoice(currentVoice, isMute);
            } else if (v == btnSwichPlayer) {
                // Handle clicks for btnSwichPlayer
                showSwichPlayerDialog();
            } else if (v == btnExit) {
                // Handle clicks for btnExit
                finish();
            } else if (v == btnVideoPre) {
                // Handle clicks for btnVideoPre
                playPreVideo();
            } else if (v == btnVideoStartPause) {
                // Handle clicks for btnVideoStartPause
                startAndPause();
            } else if (v == btnVideoNext) {
                // Handle clicks for btnVideoNext
                playNextVideo();
            } else if (v == btnVideoSiwchScreen) {
                // Handle clicks for btnVideoSiwchScreen
                setFullScreenAndDefault();
            }
    
            handler.removeMessages(HIDE_MEDIACONTROLLER);
            handler.sendEmptyMessageDelayed(HIDE_MEDIACONTROLLER, 4000);
        }

###### 6、onTouchEvent()方法中 ######

@Override
    public boolean onTouchEvent(MotionEvent event) {
        //把事件传递给手势识别器
        detector.onTouchEvent(event);
    
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN://手指按下
                ...
                handler.removeMessages(HIDE_MEDIACONTROLLER);
                break;
            case MotionEvent.ACTION_MOVE://手指移动
                ...
                break;
            case MotionEvent.ACTION_UP://手指离开
                handler.sendEmptyMessageDelayed(HIDE_MEDIACONTROLLER, 4000);
                break;
        }
        return super.onTouchEvent(event);
    }

[https_blog.csdn.net_zxd1435513775_article_details_81507909]: https://blog.csdn.net/zxd1435513775/article/details/81507909
[https_blog.csdn.net_zxd1435513775_article_details_81533053]: https://blog.csdn.net/zxd1435513775/article/details/81533053
[https_blog.csdn.net_zxd1435513775_article_details_81535065]: https://blog.csdn.net/zxd1435513775/article/details/81535065
[https_blog.csdn.net_zxd1435513775_article_details_81562032]: https://blog.csdn.net/zxd1435513775/article/details/81562032