Androidでカスタムカメラを作成しようとしています。私はここから多くの助けを得まし た 問題は、画像プレビューの向きが歪んでいるように見えることです. 電話が縦向きモードの場合、画像は横向きで描かれていますか? これは通常のルック アンド フィールではありません。これがライブラリのコードです。誰か助けてくれませんか
package com.whatsthegoss.simplecamera;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.AutoFocusCallback;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.view.Menu;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
public class MainActivity extends Activity implements SurfaceHolder.Callback, OnClickListener{
private static final String EXTERNAL_STORAGE_DIR = Environment.getExternalStorageDirectory().toString() + "/SimpleCamera";
private Camera mCamera;
private boolean mPreviewRunning;
private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder;
private Button mButtonCapture;
private Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() {
public void onPictureTaken(byte[] imageData, Camera c) {
final Bitmap bm = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
final Bitmap a=Bitmap.createBitmap(bm, 10,10,30, 60);
final File file = new File(EXTERNAL_STORAGE_DIR, "ic_" + System.currentTimeMillis() + ".jpg");
try {
final FileOutputStream outstream = new FileOutputStream(file);
a.compress(Bitmap.CompressFormat.JPEG, 100, outstream);
if (outstream != null) {
outstream.flush();
outstream.close();
}
// Update media gallery
updateMediaGallery();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// Restart camera preview
mCamera.startPreview();
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFormat(PixelFormat.TRANSLUCENT);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
mSurfaceView = (SurfaceView) findViewById(R.id.surface_camera);
mSurfaceHolder = mSurfaceView.getHolder();
mSurfaceHolder.addCallback(this);
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mButtonCapture = (Button) findViewById(R.id.button_capture);
mButtonCapture.setOnClickListener(this);
// Create the necessary directories
File storagePath = new File(EXTERNAL_STORAGE_DIR);
storagePath.mkdirs();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
if (mPreviewRunning) {
mCamera.stopPreview();
}
final Camera.Parameters params = mCamera.getParameters();
final List<Camera.Size> sizes = params.getSupportedPreviewSizes();
final Camera.Size size = sizes.get(sizes.size()-2);
final List<Camera.Size> pictureSizes = params.getSupportedPictureSizes();
final Camera.Size pictureSize = pictureSizes.get(pictureSizes.size()-2);
params.setPreviewSize(size.width, size.height);
params.setPictureSize(pictureSize.width, pictureSize.height);
mCamera.setParameters(params);
try {
mCamera.setPreviewDisplay(holder);
} catch (IOException e) {
e.printStackTrace();
}
mCamera.startPreview();
mPreviewRunning = true;
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
mCamera = Camera.open();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
mCamera.stopPreview();
mPreviewRunning = false;
mCamera.release();
}
@Override
public void onClick(View v) {
switch (v.getId())
{
case R.id.button_capture:
mCamera.autoFocus(new AutoFocusCallback() {
@Override
public void onAutoFocus(boolean success, Camera camera) {
mCamera.takePicture(null, null, mPictureCallback);
}
});
break;
}
}
/**
* This method is used to notify the media gallery that there is a new image
*
*/
private void updateMediaGallery() {
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ EXTERNAL_STORAGE_DIR)));
}
}