我的Android進階之旅------>Android中MediaRecorder.stop()報錯 java.lang.RuntimeException: stop failed.

標籤：

今天在調用MediaRecorder.stop()，報錯了，java.lang.RuntimeException: stop failed.

E/AndroidRuntime(7698): Cause by: java.lang.RuntimeException: stop failed.E/AndroidRuntime(7698):            at android.media.MediaRecorder.stop(Native Method)E/AndroidRuntime(7698):            at com.tintele.sos.VideoRecordService.stopRecord(VideoRecordService.java:298)

報錯代碼如下：

if (mediarecorder != null) {mediarecorder.stop();mediarecorder.release();mediarecorder = null;if (mCamera != null) {mCamera.release();mCamera = null;}}

stop()方法原始碼如下：

/**     * Stops recording. Call this after start(). Once recording is stopped,     * you will have to configure it again as if it has just been constructed.     * Note that a RuntimeException is intentionally thrown to the     * application, if no valid audio/video data has been received when stop()     * is called. This happens if stop() is called immediately after     * start(). The failure lets the application take action accordingly to     * clean up the output file (delete the output file, for instance), since     * the output file is not properly constructed when this happens.     *     * @throws IllegalStateException if it is called before start()     */    public native void stop() throws IllegalStateException;

原始碼中說了：Note that a RuntimeException is intentionally thrown to the application, if no valid audio/video data has been received when stop() is called. This happens if stop() is called immediately after start().

現在，在mediarecorder.stop();這一句報錯了，現在在mediarecorder.stop();這句之前加幾句就不會報錯了

mediarecorder.setOnErrorListener(null);
mediarecorder.setOnInfoListener(null);  
mediarecorder.setPreviewDisplay(null);

改後代碼如下：

if (mediarecorder != null) {//added by ouyang starttry {//下面三個參數必須加，不加的話會奔潰，在mediarecorder.stop();//報錯為：RuntimeException:stop failedmediarecorder.setOnErrorListener(null);mediarecorder.setOnInfoListener(null);  mediarecorder.setPreviewDisplay(null);mediarecorder.stop();} catch (IllegalStateException e) {// TODO: handle exceptionLog.i("Exception", Log.getStackTraceString(e));}catch (RuntimeException e) {// TODO: handle exceptionLog.i("Exception", Log.getStackTraceString(e));}catch (Exception e) {// TODO: handle exceptionLog.i("Exception", Log.getStackTraceString(e));}//added by ouyang endmediarecorder.release();mediarecorder = null;if (mCamera != null) {mCamera.release();mCamera = null;}}

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我的Android進階之旅------>Android中MediaRecorder.stop()報錯 java.lang.RuntimeException: stop failed.