/*
?*?Barebones?implementation?of?displaying?camera?preview.
?*?
?*?Created?by?lisah0?on?2012-02-24
?*/
package?net.sourceforge.zbar.android.CameraTest;

import?java.io.IOException;

import?android.app.Activity;
import?android.os.Bundle;

import?android.util.Log;

import?android.view.View;
import?android.view.Surface;
import?android.view.SurfaceView;
import?android.view.SurfaceHolder;

import?android.content.Context;

import?android.hardware.Camera;
import?android.hardware.Camera.PreviewCallback;
import?android.hardware.Camera.AutoFocusCallback;
import?android.hardware.Camera.Parameters;

/**?A?basic?Camera?preview?class?*/
public?class?CameraPreview?extends?SurfaceView?implements?SurfaceHolder.Callback?{
????private?SurfaceHolder?mHolder;
????private?Camera?mCamera;
????private?PreviewCallback?previewCallback;
????private?AutoFocusCallback?autoFocusCallback;

????public?CameraPreview（Context?context?Camera?camera
?????????????????????????PreviewCallback?previewCb
?????????????????????????AutoFocusCallback?autoFocusCb）?{
????????super（context）;
????????mCamera?=?camera;
????????previewCallback?=?previewCb;
????????autoFocusCallback?=?autoFocusCb;

????????/*?
?????????*?Set?camera?to?continuous?focus?if?supported?otherwise?use
?????????*?software?auto-focus.?Only?works?for?API?level?>=9.
?????????*/
????????/*
????????Camera.Parameters?parameters?=?camera.getParameters（）;
????????for?（String?f?:?parameters.getSupportedFocusModes（））?{
????????????if?（f?==?Parameters.FOCUS_MODE_CONTINUOUS_PICTURE）?{
????????????????mCamera.setFocusMode（Parameters.FOCUS_MODE_CONTINUOUS_PICTURE）;
????????????????autoFocusCallback?=?null;
????????????????break;
????????????}
????????}
????????*/

????????//?Install?a?SurfaceHolder.Callback?so?we?get?notified?when?the
????????//?underlying?surface?is?created?and?destroyed.
????????mHolder?=?getHolder（）;
????????mHolder.addCallback（this）;

????????//?deprecated?setting?but?required?on?Android?versions?prior?to?3.0
????????mHolder.setType（SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS）;
????}

????public?void?surfaceCreated（SurfaceHolder?holder）?{
????????//?The?Surface?has?been?created?now?tell?the?camera?where?to?draw?the?preview.
????????try?{
????????????mCamera.setPreviewDisplay（holder）;
????????}?catch?（IOException?e）?{
????????????Log.d（“DBG“?“Error?setting?camera?preview:?“?+?e.getMessage（））;
????????}
????}

????public?void?surfaceDestroyed（SurfaceHolder?holder）?{
????????//?Camera?preview?released?in?activity
????}

????public?void?surfaceChanged（SurfaceHolder?holder?int?format?int?width?int?height）?{
????????/*
?????????*?If?your?preview?can?change?or?rotate?take?care?of?those?events?here.
?????????*?Make?sure?to?stop?the?preview?before?resizing?or?reformatting?it.
?????????*/
????????if?（mHolder.getSurface（）?==?null）{
??????????//?preview?surface?does?not?exist
??????????return;
????????}

????????//?stop?preview?before?making?changes
????????try?{
????????????mCamera.stopPreview（）;
????????}?catch?（Excep

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????.......???????461??2015-03-09?09:36??ZBarWin64-master\.hgignore

????.......???????628??2015-03-09?09:36??ZBarWin64-master\android\AndroidManifest.xml

????.......???????696??2015-03-09?09:36??ZBarWin64-master\android\ant.properties

????.......??????2816??2015-03-09?09:36??ZBarWin64-master\android\build-ndk.xml

????.......??????3494??2015-03-09?09:36??ZBarWin64-master\android\build.xml

????.......????????58??2015-03-09?09:36??ZBarWin64-master\android\ChangeLog

????.......???????876??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\AndroidManifest.xml

????.......???????696??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\ant.properties

????.......??????3359??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\build.xml

????.......??????1248??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\proguard.cfg

????.......???????361??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\project.properties

????.......???????770??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\res\layout\main.xml

????.......???????117??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\res\values\strings.xml

????.......??????3550??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\src\net\sourceforge\zbar\android\CameraTest\CameraPreview.java

????.......??????4677??2015-03-09?09:36??ZBarWin64-master\android\examples\CameraTest\src\net\sourceforge\zbar\android\CameraTest\CameraTestActivity.java

????.......??????1757??2015-03-09?09:36??ZBarWin64-master\android\jni\Android.mk

????.......????????35??2015-03-09?09:36??ZBarWin64-master\android\jni\Application.mk

????.......??????6691??2015-03-09?09:36??ZBarWin64-master\android\jni\config.h

????.......??????1248??2015-03-09?09:36??ZBarWin64-master\android\proguard.cfg

????.......???????381??2015-03-09?09:36??ZBarWin64-master\android\project.properties

????.......??????3634??2015-03-09?09:36??ZBarWin64-master\android\README

????.......???????402??2015-03-09?09:36??ZBarWin64-master\android\res\layout\main.xml

????.......???????121??2015-03-09?09:36??ZBarWin64-master\android\res\values\strings.xml

????.......?????29465??2015-03-09?09:36??ZBarWin64-master\ChangeLog

????.......?????????0??2015-03-09?09:36??ZBarWin64-master\config\.keep

?????文件??????18343??2015-03-09?09:36??ZBarWin64-master\config\config.rpath

????.......?????20896??2015-03-09?09:36??ZBarWin64-master\configure.ac

????.......??????1279??2015-03-09?09:36??ZBarWin64-master\COPYING

?????文件??????10912??2017-08-22?11:22??ZBarWin64-master\Debug\bch15_5.obj

?????文件??????26716??2017-08-22?11:22??ZBarWin64-master\Debug\binarize.obj

............此處省略524個文件信息