Android相机为横向，但以纵向模式使用

Question

I hold my phone in "portrait mode" but the cameraPreview is in mode landscape (ie I see something rotated by 90 degrees). When I turned the phone to hold it in "landscape mode" the preview is fine and is in "landscape mode", the image is not rotated. I do not have access to Camera.setDisplayOrientation(int) , so I can't use the method explained here .

I've tried:

Camera.Parameters p = camera.getParameters();
    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT)
    {   
        p.set("orientation", "portrait");
        p.set("rotation",90);
    }
    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE)
    {                               
        p.set("orientation", "landscape");          
        p.set("rotation", 90);
    }

Answer 1

Try setting the camera's display orientation by using:

Camera camera;
...
camera.setDisplayOrientation(90);

Put it in the surfaceCreated(SurfaceHolder holder) method. This worked for me when I had a similar problem.

Answer 2

ok so I've solve the problem In the "surfaceCreated" method do

    Method rotateMethod;
    rotateMethod = android.hardware.Camera.class.getMethod("setDisplayOrientation", int.class);
    rotateMethod.invoke(camera, 90);

just after

camera = Camera.open();

(cf: Camera is wrong unless keyboard is open )

Answer 3

add code in AndroidManifest.xml Activity in your workspace project.

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>