标签:拍照 Camera camera params new android null Intent
SurfaceView surfaceView = (SurfaceView) findViewById(R.id.surfaceView);
Camera camera = Camera.open();
Parameters params = camera.getParameters();
List<Camera.Size> previewSize = params.getSupportedPreviewSizes();
List<Camera.Size> pictureSize = params.getSupportedPictureSizes();
if(previewSize.size()>0 && pictureSize.size()>0)
{
Camera.Size maxPreviewSize = previewSize.get(previewSize.size()-1);
params.setPreviewSize(maxPreviewSize.width,maxPreviewSize.height);//设置预览照片的大小
params.setPictureFormat(PixelFormat.JPEG);// 设置图片格式
params.setJpegQuality(100);//照片质量
Camera.Size maxPictureSize = pictureSize.get(pictureSize.size()-1);
params.setPictureSize(maxPictureSize.width,maxPictureSize.height);//设置照片的大小
//旋转90度
if (Integer.parseInt(Build.VERSION.SDK) >= 8)
setDisplayOrientation(camera, 90);
else params.setRotation(90);
camera.setParameters(params);
try {
camera.setPreviewDisplay(surfaceView.getHolder());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}//通过SurfaceView显示取景画面
camera.startPreview();
camera.autoFocus(null);//自动对焦
camera.takePicture(null, null, pictureCallback);
camera.startPreview();
}
/**
* 拍照的回调接口
*/
PictureCallback pictureCallback = new PictureCallback()
{
@Override
public void onPictureTaken(byte[] data, Camera camera)
{
if (data != null)
{
Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0,data.length);
File file = new File(Environment.getExternalStorageDirectory(),System.currentTimeMillis()+".jpg");
FileOutputStream outStream = null;
try
{
outStream = new FileOutputStream(file);
bitmap.compress(CompressFormat.JPEG, 100, outStream);
outStream.close();
Intent sendIntent = new Intent(Intent.ACTION_SEND, Uri.parse("mms://"));
sendIntent.setType("image/jpeg");
sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
startActivity(Intent.createChooser(sendIntent, "MMS:"));
}
catch (Exception e)
{
e.printStackTrace();
}
}
camera.stopPreview();
camera.release();
camera = null;
}
};
protected void setDisplayOrientation(Camera camera, int angle) {
Method downPolymorphic;
try {
downPolymorphic = camera.getClass().getMethod(
"setDisplayOrientation", new Class[] { int.class });
if (downPolymorphic != null)
downPolymorphic.invoke(camera, new Object[] { angle });
} catch (Exception e1) {
}
}
<SurfaceView
android:id="@+id/surfaceView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<uses-permission android:name="android.permission.CAMERA" /><!-- 访问照像机的权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" /><!-- 允许挂载和移除文件系统可移动存储器 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><!-- 允许写扩展存储器 -->
标签:拍照,Camera,camera,params,new,android,null,Intent 来源: https://blog.51cto.com/u_15298588/3034240
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