基于eclipse的android项目实战—博学谷（十九）播放不同视频(本地视频)

一时失言乱红尘 2022-08-30 04:05 176阅读 0赞

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BoXueGu资源下载链接：  
[https://download.csdn.net/download/hyh/19477319][https_download.csdn.net_download_hyh_19477319]

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BoXueGu图片资源下载（免费）：  
[https://yuyunyaohui.lanzoui.com/iWos0pyc4rc][https_yuyunyaohui.lanzoui.com_iWos0pyc4rc]

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### 1、准备好视频 ###

先将下载好的视频分别下载命名为video1、video2，将其放入`res/raw`文件夹下，注意得在资源管理器中复制粘贴，直接在eclipse中粘贴可能导致视频被自动解析  
![在这里插入图片描述][f1e732eabba74b46b2d833d652845f83.png]

### 2、修改`data.json`文件 ###

在`assets`目录中的`data.json`文件，每一章修改成不同的视频名称（在资源管理器用记事本修改，否则保存编码格式不一致导致乱码）  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h5aDE3ODA4NzcwODk5_size_16_color_FFFFFF_t_70]

### 3、创建`VideoUtils` ###

在`china.ynyx.heyunhui.utils`包中创建`VideoUtils.java`文件，具体代码如下：

package china.ynyx.heyunhui.utils;
    import android.content.Context;
    public class VideoUtils {
        
    	public static int getIdByName(Context context, String className, String name) {
        
    		String packageName = context.getPackageName();
    		Class r = null;
    		int id = 0;
    		try {
        
    			r = Class.forName(packageName + ".R");
    			Class[] classes = r.getClasses();
    			Class desireClass = null;
    	
    			for (int i = 0; i < classes.length; ++i) {
        
    				if (classes[i].getName().split("\\$")[1].equals(className)) {
        
    					desireClass = classes[i];
    					break;
    				}
    			}
    		
    			if (desireClass != null)
    				id = desireClass.getField(name).getInt(desireClass);
    		} catch (ClassNotFoundException e) {
        
    			e.printStackTrace();
    		} catch (IllegalArgumentException e) {
        
    			e.printStackTrace();
    		} catch (SecurityException e) {
        
    			e.printStackTrace();
    		} catch (IllegalAccessException e) {
        
    			e.printStackTrace();
    		} catch (NoSuchFieldException e) {
        
    			e.printStackTrace();
    		}
    		return id;
    	}
    }

### 4、修改播放视频逻辑代码 ###

修改`china.ynyx.heyunhui.activity`包中`VideoPlayActivity.java`

String uri = "android.resource://" + getPackageName() + "/" + VideoUtils.getIdByName(getApplication(), "raw", videoPath);

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h5aDE3ODA4NzcwODk5_size_16_color_FFFFFF_t_70 1]clean一下或者重启eclipse，之后重新运行，就可以播放不同的视频了

完整代码：

package china.ynyx.heyunhui.activity;
    
    import android.content.Intent;
    import android.content.pm.ActivityInfo;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.text.TextUtils;
    import android.view.KeyEvent;
    import android.view.WindowManager;
    import android.widget.MediaController;
    import android.widget.Toast;
    import android.widget.VideoView;
    import china.ynyx.heyunhui.R;
    import china.ynyx.heyunhui.utils.VideoUtils;
    
    public class VideoPlayActivity extends AppCompatActivity {
        
    
    	private VideoView videoView;
        private MediaController controller;
        private String videoPath;//本地视频地址
        private int position;//传递视频详情界面点击的视频位置
        @Override
        protected void onCreate(Bundle savedInstanceState) {
        
            super.onCreate(savedInstanceState);
            //设置界面全屏显示
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
            setContentView(R.layout.activity_video_play);
            //设置此界面为横屏
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
            //获取从播放记录界面传递过来的视频地址
            videoPath = getIntent().getStringExtra("videoPath");
            position=getIntent().getIntExtra("position",0);
            init();
        }
        /**
         * 初始化UI控件
         */
        private void init() {
        
            videoView = (VideoView) findViewById(R.id.videoView);
            controller = new MediaController(this);
            videoView.setMediaController(controller);
            play();
        }
        /**
         * 播放视频
         */
        private void play() {
        
            if (TextUtils.isEmpty(videoPath)) {
        
                Toast.makeText(this, "本地没有此视频，暂无法播放", Toast.LENGTH_SHORT).show();
                return;
            }
            String uri = "android.resource://" + getPackageName() + "/" + VideoUtils.getIdByName(getApplication(), "raw", videoPath);
            videoView.setVideoPath(uri);
            videoView.start();
        }
        /**
         * 点击后退键
         */
        @Override
        public boolean onKeyDown(int keyCode, KeyEvent event) {
        
            //把视频详情界面传递过来的被点击视频的位置传递回去
            Intent data=new Intent();
            data.putExtra("position", position);
            setResult(RESULT_OK, data);
            return super.onKeyDown(keyCode, event);
        }
    }

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[基于eclipse的android项目实战—博学谷（零）创建和运行Android项目][eclipse_android_Android]  
[基于eclipse的android项目实战—博学谷（一）欢迎界面][eclipse_android]  
[基于eclipse的android项目实战—博学谷（二）注册界面][eclipse_android 1]  
[基于eclipse的android项目实战—博学谷（三）登录界面][eclipse_android 2]  
[基于eclipse的android项目实战—博学谷（四）底部导航栏][eclipse_android 3]  
[基于eclipse的android项目实战—博学谷（五）“我”的模块][eclipse_android 4]  
[基于eclipse的android项目实战—博学谷（六）设置界面][eclipse_android 5]  
[基于eclipse的android项目实战—博学谷（七）修改密码][eclipse_android 6]  
[基于eclipse的android项目实战—博学谷（八）设置密保和找回密码][eclipse_android 7]  
[基于eclipse的android项目实战—博学谷（九）个人资料界面][eclipse_android 8]  
[基于eclipse的android项目实战—博学谷（十）个人资料修改][eclipse_android 9]  
[基于eclipse的android项目实战—博学谷（十一）习题界面][eclipse_android 10]  
[基于eclipse的android项目实战—博学谷（十二）习题详情界面][eclipse_android 11]  
[基于eclipse的android项目实战—博学谷（十三）水平滑动广告栏界面][eclipse_android 12]  
[基于eclipse的android项目实战—博学谷（十四）课程界面][eclipse_android 13]  
[基于eclipse的android项目实战—博学谷（十五）课程详情界面][eclipse_android 14]  
[基于eclipse的android项目实战—博学谷（十六）视频播放界面][eclipse_android 15]  
[基于eclipse的android项目实战—博学谷（十七）播放记录界面][eclipse_android 16]  
[基于eclipse的android项目实战—博学谷（十八）播放不同视频(网络视频)][eclipse_android 17]  
[基于eclipse的android项目实战—博学谷（十九）播放不同视频(本地视频)][eclipse_android 18]

[https_download.csdn.net_download_hyh_19477319]: https://download.csdn.net/download/hyh17808770899/19477319
[https_yuyunyaohui.lanzoui.com_iWos0pyc4rc]: https://yuyunyaohui.lanzoui.com/iWos0pyc4rc
[f1e732eabba74b46b2d833d652845f83.png]: /images/20220829/9dc38ce506db4c878504c272aadc4c53.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h5aDE3ODA4NzcwODk5_size_16_color_FFFFFF_t_70]: /images/20220829/bb28cd283984420d8178284c8940ba4c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h5aDE3ODA4NzcwODk5_size_16_color_FFFFFF_t_70 1]: /images/20220829/f405f435bfb8404299f0ed7ee67cb16e.png
[eclipse_android_Android]: https://blog.csdn.net/hyh17808770899/article/details/118022709
[eclipse_android]: https://blog.csdn.net/hyh17808770899/article/details/105468623
[eclipse_android 1]: https://blog.csdn.net/hyh17808770899/article/details/105471061
[eclipse_android 2]: https://blog.csdn.net/hyh17808770899/article/details/105472599
[eclipse_android 3]: https://blog.csdn.net/hyh17808770899/article/details/105514751
[eclipse_android 4]: https://blog.csdn.net/hyh17808770899/article/details/105518492
[eclipse_android 5]: https://blog.csdn.net/hyh17808770899/article/details/105696601
[eclipse_android 6]: https://blog.csdn.net/hyh17808770899/article/details/105813713
[eclipse_android 7]: https://blog.csdn.net/hyh17808770899/article/details/105816120
[eclipse_android 8]: https://blog.csdn.net/hyh17808770899/article/details/106034138
[eclipse_android 9]: https://blog.csdn.net/hyh17808770899/article/details/106038826
[eclipse_android 10]: https://blog.csdn.net/hyh17808770899/article/details/106052050
[eclipse_android 11]: https://blog.csdn.net/hyh17808770899/article/details/106057185
[eclipse_android 12]: https://blog.csdn.net/hyh17808770899/article/details/106064192
[eclipse_android 13]: https://blog.csdn.net/hyh17808770899/article/details/106343529
[eclipse_android 14]: https://blog.csdn.net/hyh17808770899/article/details/106658596
[eclipse_android 15]: https://blog.csdn.net/hyh17808770899/article/details/106730179
[eclipse_android 16]: https://blog.csdn.net/hyh17808770899/article/details/106731968
[eclipse_android 17]: https://blog.csdn.net/hyh17808770899/article/details/107987415
[eclipse_android 18]: https://blog.csdn.net/hyh17808770899/article/details/118880083