這節課會介紹如何使用現有的Camera程序來錄製一個視頻。和拍照一樣,我們沒有必要去重新發明錄像程序。大多數的Android程序都有自帶Camera來進行錄像。[這一課的內容大多數與前面一課類似,簡要帶過,一些細節不贅述了]。
Request Camera Permission [請求權限]
<manifest ... > <uses-feature android:name="android.hardware.camera" /> ... </manifest ... >與上一課的拍照一樣,你可以在啓動Camera之前,使用
hasSystemFeature(PackageManager.FEATURE_CAMERA)
.來檢查是否存在Camera。
Record a Video with a Camera App [使用相機程序來錄製視頻]
private void dispatchTakeVideoIntent() { Intent takeVideoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); startActivityForResult(takeVideoIntent, ACTION_TAKE_VIDEO); }
public static boolean isIntentAvailable(Context context, String action) { final PackageManager packageManager = context.getPackageManager(); final Intent intent = new Intent(action); List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY); return list.size() > 0; }
View the Video [查看視頻]
Android的Camera程序會把拍好的視頻地址返回。下面的代碼演示了,如何查詢到這個視頻並顯示到VideoView
.
private void handleCameraVideo(Intent intent) { mVideoUri = intent.getData(); mVideoView.setVideoURI(mVideoUri); }
學習自:http://developer.android.com/training/camera/videobasics.html,歡迎一起交流!
轉載請註明出自:http://blog.csdn.net/kesenhoo,謝謝!