Android相机拍摄的图片未保存到SD卡

Question

我已经在Eclipse中开发了一个简单的Android应用程序，用于打开相机并拍照并将其保存到Sdcard但是当我启动相机并拍照时，当我尝试保存我的应用程序时出现错误，应用程序停止不幸。请帮助我在我的代码文件中有任何问题 这是我从相机保存和拍照的代码。

package cam.cam.pkg;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class CAMActivity extends Activity {
    private static final int REQUEST_CODE = 1;
    private Button button_1;
    public int TAKE_PICTURE = 1;
    private ImageView image_view;
    private Bitmap bitmap;
    /** Called when the activity is first created. */
    @Override
       public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

         image_view = (ImageView) findViewById(R.id.result);
         button_1 = (Button) findViewById(R.id.button1);

        button_1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View arg0) {
                Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
                startActivityForResult(intent, TAKE_PICTURE);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        if (requestCode == REQUEST_CODE && resultCode == Activity.RESULT_OK)
            try {
                // We need to recyle unused bitmaps
                if (bitmap != null) {
                    bitmap.recycle();
                }
                InputStream stream = getContentResolver().openInputStream(
                        data.getData());
                bitmap = BitmapFactory.decodeStream(stream);
                stream.close();
                image_view.setImageBitmap(bitmap);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        super.onActivityResult(requestCode, resultCode, data);
    }
}

请指导我在我的代码或其他任何方式中遗漏了这个问题

更新

这是我的清单文件代码

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cam.cam.pkg"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="15" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".CAMActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

但是Cam仍然没有将图像保存到图库和应用程序不幸丢失

先生，这是我的错误记录

org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.IllegalArgumentException: Argument not valid)
    at org.eclipse.swt.SWT.error(SWT.java:4282)
    at org.eclipse.swt.SWT.error(SWT.java:4197)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
    at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
    at org.eclipse.jface.window.Window.open(Window.java:801)
    at org.eclipse.jface.dialogs.MessageDialog.open(MessageDialog.java:334)
    at org.eclipse.ui.internal.ide.dialogs.InternalErrorDialog.open(InternalErrorDialog.java:80)
    at org.eclipse.ui.internal.ide.IDEWorkbenchErrorHandler.openQuestionDialog(IDEWorkbenchErrorHandler.java:199)
    at org.eclipse.ui.internal.ide.IDEWorkbenchErrorHandler.handleException(IDEWorkbenchErrorHandler.java:154)
    at org.eclipse.ui.internal.ide.IDEWorkbenchErrorHandler.access$0(IDEWorkbenchErrorHandler.java:146)
    at org.eclipse.ui.internal.ide.IDEWorkbenchErrorHandler$1.runInUIThread(IDEWorkbenchErrorHandler.java:121)
    at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
Caused by: java.lang.IllegalArgumentException: Argument not valid
    at org.eclipse.swt.SWT.error(SWT.java:4263)
    at org.eclipse.swt.SWT.error(SWT.java:4197)
    at org.eclipse.swt.SWT.error(SWT.java:4168)
    at org.eclipse.swt.graphics.GC.drawImage(GC.java:958)
    at org.eclipse.swt.graphics.GC.drawImage(GC.java:943)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.ImageOverlay.paint(ImageOverlay.java:214)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.LayoutCanvas.onPaint(LayoutCanvas.java:729)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.LayoutCanvas.access$0(LayoutCanvas.java:723)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.LayoutCanvas$1.paintControl(LayoutCanvas.java:277)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:229)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
    at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1564)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4585)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4985)
    at org.eclipse.swt.internal.win32.OS.RedrawWindow(Native Method)
    at org.eclipse.swt.widgets.Control.update(Control.java:4380)
    at org.eclipse.swt.widgets.Display.update(Display.java:4846)
    at org.eclipse.ui.internal.LegacyAnimationFeedback.renderStep(LegacyAnimationFeedback.java:60)
    at org.eclipse.ui.internal.AnimationEngine.updateDisplay(AnimationEngine.java:131)
    at org.eclipse.ui.internal.AnimationEngine$1.run(AnimationEngine.java:120)
    at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:164)
    at org.eclipse.ui.internal.UISynchronizer$3.run(UISynchronizer.java:158)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
    ... 35 more

Answer 1

试试这段代码::::

 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        if (requestCode == REQUEST_CODE && resultCode == Activity.RESULT_OK)
            try {
            image_view.setImageUri(Uri.parse(data.getDataString()));
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
    }

<强>更新:::: 在清单文件中添加以下权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />

Answer 2

试试这个，

public class Camera extends Activity 
  {
 private static final int CAMERA_REQUEST = 1888;
 private String selectedImagePath;

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    Intent cameraIntent = new Intent(ACTION_IMAGE_CAPTURE);
    startActivityForResult(cameraIntent, CAMERA_REQUEST);
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
    if (resultCode == RESULT_OK) {
        if (requestCode == CAMERA_REQUEST) 
        { 
            Bitmap photo = (Bitmap) data.getExtras().get("data"); 
            ByteArrayOutputStream bytes = new ByteArrayOutputStream();
            photo.compress(Bitmap.CompressFormat.JPEG, 40, bytes);
            Random randomGenerator = new Random();randomGenerator.nextInt();
            String newimagename=randomGenerator.toString()+".jpg";
            File f = new File(Environment.getExternalStorageDirectory()
                                    + File.separator + newimagename);
            try {
                f.createNewFile();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            //write the bytes in file

            try {
                fo = new FileOutputStream(f.getAbsoluteFile());
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            try {
                fo.write(bytes.toByteArray());
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
                uri=f.getAbsolutePath(); 
    //this is the url that where you are saved the image
      }



  }

Answer 3

尝试以下代码集。它对我有用......

使用代码集后的onActivityResult方法调用。

    Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);

    Matrix matrix = new Matrix();
    matrix.postRotate(90);

    int width = bitmap.getWidth();
    int height = bitmap.getHeight();

    Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);

    // Display the captured image oon your screen
    capturedImageView.setImageBitmap(resizedBitmap);

    getOutputMediaFileUri(MEDIA_TYPE_IMAGE);

    File pictureFile = getOutputMediaFile(MEDIA_TYPE_IMAGE);
    if (pictureFile == null){
        Log.d(TAG, "Error creating media file, check storage permissions: ");
        return;
    }

    try {
        FileOutputStream fos = new FileOutputStream(pictureFile);
        fos.write(data);
        fos.close();
    } catch (FileNotFoundException e) {
        Log.d(TAG, "File not found: " + e.getMessage());
    } catch (IOException e) {
        Log.d(TAG, "Error accessing file: " + e.getMessage());
    }

Matrix部分直接与您的问题无关。那么你还需要遵循两种方法。

private static Uri getOutputMediaFileUri(int type){
      return Uri.fromFile(getOutputMediaFile(type));
}

private static File getOutputMediaFile(int type){

    File mediaStorageDir = new File(imagesSavingSubfolderPath);

    if (! mediaStorageDir.exists()){
        if (! mediaStorageDir.mkdirs()){
            return null;
        }
    }

    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());

    if (type == MEDIA_TYPE_IMAGE){
        mediaFile = new File(mediaStorageDir.getPath() + File.separator + "IMG_"+ timeStamp + ".jpg");
    } else {
        return null;
    }

    return mediaFile;
}   

小心我给出的变量名。 ： - ）

在Manifest中，不要忘记给予以下许可

uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"

Answer 4

if (requestCode == CAMERA) {
                    Log.d("log", " request code camera " + requestCode);
                    final File file = getTempFile(this);
                    try {
                        selImagePath = file.getAbsolutePath();
                        m_bmOCRBitmap = Media.getBitmap(getContentResolver(),
                                Uri.fromFile(file));
                        img_pht.setImageBitmap(m_bmOCRBitmap);
                        hideMenu();
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();

                    }
                } 


try this code...