摄像头源$ C ​​$ C为Android日食 [英] camera source code for android eclipse

问题描述

我需要一些帮助。事情是我做的名片阅读器的应用程序，并需要使用拍照功能拍照。但如何让我的应用程序，可以查看多发峰，我已经保存，而无需退出应用程序，并去画廊？下面是我用相机源$ C ​​$ C ..谢谢

I need some help. the thing is I doing an app on namecard reader and need to use the camera function to take pictures. but how do I make my app able to view the mutiple pic that I have save without having to exit the app and go to the gallery? below is the camera source code that I use.. thank

`

CameraMainActivity.Java

CameraMainActivity.Java

private static final int REQUEST_CODE = 1;
private static final int CAMERA_PIC_REQUEST = 1337;
private Bitmap bitmap;
private ImageView imageView;
private Button save, capture;

/** Called when the activity is first created. */

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_camera_main);
    imageView = (ImageView) findViewById(R.id.result);
    save = (Button) findViewById(R.id.save);
    save.setOnClickListener(this);
    capture = (Button) findViewById(R.id.capture);
    capture.setOnClickListener(this);
}

public void captureImage() {
    // Capture image from camera

        Intent intent = new Intent(
                android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

        startActivityForResult(intent, CAMERA_PIC_REQUEST);

}

public void pickImage() {
    // To pick a image from file system
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    intent.addCategory(Intent.CATEGORY_OPENABLE);
    startActivityForResult(intent, REQUEST_CODE);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == Activity.RESULT_OK) {
        if (requestCode == REQUEST_CODE) {
            try {
                // We need to recycle unused bitmaps
                if (bitmap != null) {
                    bitmap.recycle();
                }
                InputStream stream = getContentResolver().openInputStream(
                        data.getData());
                bitmap = BitmapFactory.decodeStream(stream);
                stream.close();
                imageView.setImageBitmap(bitmap);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } else if (requestCode == CAMERA_PIC_REQUEST) {

                if (bitmap != null) {
                    bitmap.recycle();
                }
                bitmap = (Bitmap) data.getExtras().get("data");
                if (data.getExtras().get("data") == null)
                Toast.makeText(getApplicationContext(),
                        "No image returned", Toast.LENGTH_LONG).show();
                else
                imageView.setImageBitmap(bitmap);



        }
    }
    super.onActivityResult(requestCode, resultCode, data);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.activity_camera_main, menu);
    return true;
}

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub
    if (v == save) {
        BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
        Bitmap bitmap = drawable.getBitmap();
        File sdCardDirectory = Environment.getExternalStorageDirectory();
        File image = new File(sdCardDirectory, "test.png");
        boolean success = false;

        // Encode the file as a PNG image.
        FileOutputStream outStream;
        try {

            outStream = new FileOutputStream(image);
            bitmap.compress(Bitmap.CompressFormat.PNG, 100, outStream);
            /* 100 to keep full quality of the image */

            outStream.flush();
            outStream.close();
            success = true;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        if (success) {
            Toast.makeText(getApplicationContext(),
                    "Image saved with success", Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(getApplicationContext(),
                    "Error during image saving", Toast.LENGTH_LONG).show();
        }
    } else if (v == capture) {
        captureImage();
    }

}

}

我使用一个按钮来启动相机

i'm using a button to launch the camera

main.xml中

    <Button
        android:id="@+id/takeviewpic"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Take/View Pic" />

Android清单

Android Manifest

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<uses-permission android:name="android.permission.READ_SMS"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-feature
    android:name="android.hardware.camera"
    android:required="false" />
<uses-feature
    android:name="android.hardware.camera.front"
    android:required="false" />
<uses-feature
    android:name="android.hardware.camera.autofocus"
    android:required="false" />
<uses-feature
    android:name="android.hardware.camera.flash"
    android:required="false" />
<uses-feature android:name="android.hardware.screen.landscape" />
<uses-feature
    android:name="android.hardware.wifi"
    android:required="false" />
<uses-feature
    android:name="android.hardware.touchscreen"
    android:required="false" />

<uses-sdk android:minSdkVersion="10" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <uses-library android:name="com.google.android.maps" />
    <activity
        android:name="sp.com.Splash"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".Main"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="main" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity android:name=".NameCardList" >
    </activity>
    <activity android:name=".DetailForm" >
    </activity>
    <activity android:name=".EditPreferences" >
    </activity>
    <activity android:name=".NameCardMap" >
    </activity>
    <activity android:name=".SmsReceiver" >
    </activity>
    <activity
        android:name=".CameraMainActivity"
        android:label="@string/app_name" 
        android:clearTaskOnLaunch="true"
        android:configChanges="orientation|keyboardHidden"
        android:stateNotNeeded="true"
    />
</application>

`

推荐答案

我的这台相机的例子可以帮助你： -

My this camera example can help you:--

import android.hardware.Camera;

import android.hardware.Camera.CameraInfo;

import android.os.Bundle;

import android.app.Activity;

import android.content.pm.PackageManager;

import android.util.Log;

import android.view.Menu;

import android.view.View;

import android.widget.Toast;


public class Main extends Activity {

  private final static String DEBUG_TAG = "MakePhotoActivity";

  private Camera camera;

  private int cameraId = 0;

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);


 if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA)) {

          Toast.makeText(this, "No camera on this device", Toast.LENGTH_LONG).show();

        }
else {

          cameraId = findFrontFacingCamera();

          camera = Camera.open(cameraId);

          if (cameraId < 0) {

            Toast.makeText(this, "No front facing camera found.",

                Toast.LENGTH_LONG).show();

          }

        }

}

 public void onClick(View view) {

    camera.takePicture(null, null,new PhotoHandler(getApplicationContext()));

  }

private int findFrontFacingCamera()
 {

int cameraId = -1;

    // Search for the front facing camera

    int numberOfCameras = Camera.getNumberOfCameras();

    for (int i = 0; i < numberOfCameras; i++)

{

CameraInfo info = new CameraInfo();

 Camera.getCameraInfo(i, info);

 if (info.facing == CameraInfo.CAMERA_FACING_FRONT)

{
        Log.d(DEBUG_TAG, "Camera found");

       cameraId = i;

     break;

     }

   }

  return cameraId;

  }

@Override

 protected void onPause() 
{

 if (camera != null) 
{


    camera.release();

    camera = null;

 }

super.onPause();

}



}

和另一个类的照片处理程序.. !!! -

And another class of photo handler..!!!:-

 import java.io.File;
 import java.io.FileOutputStream;
 import java.text.SimpleDateFormat;
 import java.util.Date;

 import android.content.Context;
 import android.hardware.Camera;
 import android.hardware.Camera.PictureCallback;
 import android.os.Environment;
 import android.provider.SyncStateContract.Constants;
 import android.util.Log;
 import android.widget.Toast;

  public class PhotoHandler implements PictureCallback {
private final Context context;

  public PhotoHandler(Context context) {
    this.context = context;
  }

  public void onPictureTaken(byte[] data, Camera camera) {

    File pictureFileDir = getDir();

    if (!pictureFileDir.exists() && !pictureFileDir.mkdirs()) {

      Toast.makeText(context, "Can't create directory to save image.",
          Toast.LENGTH_LONG).show();
      return;

    }

    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyymmddhhmmss");
    String date = dateFormat.format(new Date());
    String photoFile = "Picture_" + date + ".jpg";

    String filename = pictureFileDir.getPath() + File.separator + photoFile;

    File pictureFile = new File(filename);

    try {
      FileOutputStream fos = new FileOutputStream(pictureFile);
      fos.write(data);
      fos.close();
      Toast.makeText(context, "New Image saved:" + photoFile,
          Toast.LENGTH_LONG).show();
    } catch (Exception error) {

      Toast.makeText(context, "Image could not be saved.",
          Toast.LENGTH_LONG).show();
    }
  }

  private File getDir() {
    File sdDir = Environment
      .getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
    return new File(sdDir, "CameraAPIDemo");
  }

 }

如果妳想要别的东西嘿添加评论... !!!!!

If u want something else plz add comments...!!!!!

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