我的Android进阶之旅------>Android中MediaRecorder.stop()报错 java.lang.RuntimeException: stop failed.

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今天在调用MediaRecorder.stop()，报错了，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)

报错代码如下：

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

stop()方法源代码如下：

/**
     * 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;

现在，在mediarecorder.stop();这一句报错了，现在在mediarecorder.stop();这句之前加几句就不会报错了

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

改后代码如下：

if (mediarecorder != null) {
			//added by ouyang start
			try {
				//下面三个参数必须加，不加的话会奔溃，在mediarecorder.stop();
				//报错为：RuntimeException:stop failed
				mediarecorder.setOnErrorListener(null);
				mediarecorder.setOnInfoListener(null);  
				mediarecorder.setPreviewDisplay(null);
				mediarecorder.stop();
			} catch (IllegalStateException e) {
				// TODO: handle exception
				Log.i("Exception", Log.getStackTraceString(e));
			}catch (RuntimeException e) {
				// TODO: handle exception
				Log.i("Exception", Log.getStackTraceString(e));
			}catch (Exception e) {
				// TODO: handle exception
				Log.i("Exception", Log.getStackTraceString(e));
			}
			//added by ouyang end
			
			mediarecorder.release();
			mediarecorder = null;
			if (mCamera != null) {
				mCamera.release();
				mCamera = null;
			}
		}

我的Android进阶之旅------>Android中MediaRecorder.stop()报错 java.lang.RuntimeException: stop failed.

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原文地址：http://blog.csdn.net/ouyang_peng/article/details/48048975