android – 禁用方向更改

概述重新启动自定义相机,在预览模式下进行更改时,从横向到纵向或纵向到横向,我的Surface类代码如下所示： PreviewSurface.java:- public class PreviewSurface extends SurfaceView implementsSurfaceHolder.Callback { public static final String LOG_TAG = 重新启动自定义相机,在预览模式下进行更改时,从横向到纵向或纵向到横向,我的Surface类代码如下所示：

PrevIEwSurface.java:-

public class PrevIEwSurface extends SurfaceVIEw implementsSurfaceHolder.Callback {    public static final String LOG_TAG = "CameraPrevIEw";    private SurfaceHolder mSurfaceHolder;    private Camera mCamera;    // Constructor that obtains context and camera    @SuppressWarnings("deprecation")    public PrevIEwSurface(Context context,Camera camera) {        super(context);        this.mCamera = camera;        this.mSurfaceHolder = this.getHolder();        this.mSurfaceHolder.addCallback(this);        this.mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);        this.mSurfaceHolder.setFixedSize(100,100);    }    @OverrIDe    public voID surfaceCreated(SurfaceHolder surfaceHolder) {        try {                   Camera.Parameters parameters = mCamera.getParameters();            if (this.getResources().getConfiguration().orIEntation != Configuration.ORIENTATION_LANDSCAPE)             {                 parameters.set("orIEntation","portrait");                 mCamera.setdisplayOrIEntation(90);                 parameters.setRotation(90);                 mCamera.setPrevIEwdisplay(surfaceHolder);                 mCamera.startPrevIEw();            }            else             {                 // This is an undocumented although wIDely kNown feature                 parameters.set("orIEntation","landscape");                 // For AndroID 2.2 and above                 mCamera.setdisplayOrIEntation(0);                 // Uncomment for AndroID 2.0 and above                 parameters.setRotation(0);            }            mCamera.setPrevIEwdisplay(surfaceHolder);            mCamera.startPrevIEw();        } catch (IOException e) {            // left blank for Now        }    }    @OverrIDe    public voID surfaceDestroyed(SurfaceHolder surfaceHolder) {        mCamera.stopPrevIEw();        mCamera.release();    }    @OverrIDe    public voID surfaceChanged(SurfaceHolder surfaceHolder,int format,int wIDth,int height) {        try {                   Camera.Parameters parameters = mCamera.getParameters();            if (this.getResources().getConfiguration().orIEntation != Configuration.ORIENTATION_LANDSCAPE) {                 parameters.set("orIEntation","portrait");                 mCamera.setdisplayOrIEntation(90);                 parameters.setRotation(90);            }                 else {                      // This is an undocumented although wIDely kNown feature                      parameters.set("orIEntation","landscape");                      // For AndroID 2.2 and above                      mCamera.setdisplayOrIEntation(0);                      // Uncomment for AndroID 2.0 and above                      parameters.setRotation(0);            }            mCamera.setPrevIEwdisplay(surfaceHolder);            mCamera.startPrevIEw();        } catch (IOException e) {            // left blank for Now        }               }}

我可以知道我在哪里做错了,我在代码中错过了什么？

解决方法 您必须处理应用程序的配置更改.

将此行添加到AndroIDManifest.xml.

androID:configChanges="keyboardHIDden|orIEntation|screenSize"

This tells the system what configuration changes you are going to handle yourself – in this case by doing nothing.

希望它有助于ツ

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