takePicture failed 拍照失败

拍照失败

takePicture failed

这是因为 拍照， 需要预览才行。没有预览，就会报这个错误。

This is because you need a preview to take a photo.Without a preview, this error will be reported.

加上这句话camera.startPreview(); 就可以了。

With this, camera. StartPreview ();That's it.

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详细的错误日志：

Detailed error log:

08-04 00:53:43.304: E/AndroidRuntime(23515): FATAL EXCEPTION: main

08-04 00:53:43.304: E/AndroidRuntime(23515): Process: com.example.frontandrearcameras, PID: 23515

08-04 00:53:43.304: E/AndroidRuntime(23515): java.lang.IllegalStateException: Could not execute method of the activity

非法语句异常：不能执行该活动的方法

08-04 00:53:43.304: E/AndroidRuntime(23515): at android.view.View$1.onClick(View.java:4065)

08-04 00:53:43.304: E/AndroidRuntime(23515): at android.view.View.performClick(View.java:4820)

执行 点击

08-04 00:53:43.304: E/AndroidRuntime(23515): at android.view.View$PerformClick.run(View.java:20157)
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.os.Handler.handleCallback(Handler.java:815)
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.os.Handler.dispatchMessage(Handler.java:104)
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.os.Looper.loop(Looper.java:194)
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.app.ActivityThread.main(ActivityThread.java:5578)
08-04 00:53:43.304: E/AndroidRuntime(23515): at java.lang.reflect.Method.invoke(Native Method)
08-04 00:53:43.304: E/AndroidRuntime(23515): at java.lang.reflect.Method.invoke(Method.java:372)
08-04 00:53:43.304: E/AndroidRuntime(23515): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:956)
08-04 00:53:43.304: E/AndroidRuntime(23515): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:751)
08-04 00:53:43.304: E/AndroidRuntime(23515): Caused by: java.lang.reflect.InvocationTargetException
08-04 00:53:43.304: E/AndroidRuntime(23515): at java.lang.reflect.Method.invoke(Native Method)
08-04 00:53:43.304: E/AndroidRuntime(23515): at java.lang.reflect.Method.invoke(Method.java:372)
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.view.View$1.onClick(View.java:4060)
08-04 00:53:43.304: E/AndroidRuntime(23515): ... 10 more
08-04 00:53:43.304: E/AndroidRuntime(23515): Caused by: java.lang.RuntimeException: takePicture failed
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.hardware.Camera.native_takePicture(Native Method)
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.hardware.Camera.takePicture(Camera.java:1828)
08-04 00:53:43.304: E/AndroidRuntime(23515): at android.hardware.Camera.takePicture(Camera.java:1773)
08-04 00:53:43.304: E/AndroidRuntime(23515): at com.example.frontandrearcameras.MainActivity.saveCameraBitmap(MainActivity.java:58)

08-04 00:53:43.304: E/AndroidRuntime(23515): ... 13 more

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