Android 使用按钮打开相机

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您可以使用：相机相机：

Intent intent = new Intent/"android.media.action.IMAGE_CAPTURE"/;

startActivity/intent/;

图像将自动保存在默认目录中。

并且您需要在您的相机中设置相机的许可 AndroidManifest.xml:

<uses-permission android:name="android.permission.CAMERA"> </uses-permission>

石油百科

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Button b = /Button/findViewById/R.id.Button01/;



 b.setOnClickListener/new OnClickListener// {

 public void onClick/View v/ {

 Intent cameraIntent = new Intent/android.provider.MediaStore.ACTION_IMAGE_CAPTURE/;

 startActivityForResult/cameraIntent, CAMERA_PIC_REQUEST/;

 }

 }/;

}



protected void onActivityResult/int requestCode, int resultCode, Intent data/ {

 if /requestCode == CAMERA_PIC_REQUEST/ {

 Bitmap image = /Bitmap/ data.getExtras//.get/"data"/;

 ImageView imageview = /ImageView/ findViewById/R.id.ImageView01/; //sets imageview as the bitmap

 imageview.setImageBitmap/image/;

 }

}

涵秋

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您可以创建相机的意图并调用它 startActivityForResult /intent/.

Intent intent = new Intent/MediaStore.ACTION_IMAGE_CAPTURE/;



 // start the image capture Intent

startActivityForResult/intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE/;

卫东

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我知道这有点迟到了，但你可以使用下面的语法，因为它与我完美地工作

Camera=/Button/findViewById/R.id.CameraID/;

Camera.setOnClickListener/new OnClickListener// {



 @Override

 public void onClick/View v/ {

 // TODO Auto-generated method stub

 Intent Intent3=new Intent/MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA/;

 startActivity/Intent3/; 

 }

 }/;

喜特乐

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下面的代码确实是你想要的

//use 这是一个点击的意图

Intent cameraIntent = new Intent/MediaStore.ACTION_IMAGE_CAPTURE/;

 startActivityForResult/cameraIntent,CAMERA_REQUEST/;

// 上面的代码用于该部分 "关于活动的结果".

protected void onActivityResult/int requestCode, int resultCode, Intent data/ {



 super.onActivityResult/requestCode, resultCode, data/;

 callbackManager.onActivityResult/requestCode, resultCode, data/;



 if /requestCode == CAMERA_REQUEST/ {

 Bitmap photo = /Bitmap/ data.getExtras//.get/"data"/;

 image.setImageBitmap/photo/;

 }

}

帅驴

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它适合我。 .

Intent intent=new Intent/MediaStore.ACTION_IMAGE_CAPTURE/;

 startActivity/intent/;

并将此权限添加到文件中 mainfest:

<uses-permission android:name="android.permission.CAMERA">

它打开相机，在捕获图像后，通过一组新的图像保存画廊中的图像。
</uses-permission>

裸奔

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你是对意图中使用的行动的权利，但这不是你唯一要做的事情。您还必须添加

startActivityForResult/intent, YOUR_REQUEST_CODE/;

要完成所有这些并获得真实的图片，可以检查下一个线程。

https://coderoad.ru/3491961/

八刀丁二

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您可以使用以下代码。

Intent cameraIntent = new Intent/android.provider.MediaStore.ACTION_IMAGE_CAPTURE/;



 pic = new File/Environment.getExternalStorageDirectory//,

 mApp.getPreference//.getString/Common.u_id, ""/ + ".jpg"/;



 picUri = Uri.fromFile/pic/;



 cameraIntent.putExtra/android.provider.MediaStore.EXTRA_OUTPUT, picUri/;



 cameraIntent.putExtra/"return-data", true/;

 startActivityForResult/cameraIntent, PHOTO/;

二哥

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我创建 libray 从相机或厨房中选择图像，也可以修剪

试试吧，

ImagePro.Java

public class ImagePro

{

 public static String TAG = "ImagePro";

 Activity activity;

 Uri mImageCaptureUri;

 public static int CAMERA_CODE = 64;

 public static int GALLERY_CODE = 74;

 public static int CROPPING_CODE = 84;

 private final static int REQUEST_PERMISSION_REQ_CODE = 704;



 public ImagePro/Activity activity/ {



 this.activity = activity;

 this.outPutFile = new File/android.os.Environment.getExternalStorageDirectory//, "temp.jpg"/;



 if /ContextCompat.checkSelfPermission/activity, Manifest.permission.WRITE_EXTERNAL_STORAGE/ != PackageManager.PERMISSION_GRANTED/ {



 ActivityCompat.requestPermissions/activity, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_PERMISSION_REQ_CODE/;

 }

 }



 private void LogToast/String message/ {



 try {

 Toast.makeText/activity, message, Toast.LENGTH_SHORT/.show//;

 } catch /Exception e/ {

 e.printStackTrace//;

 }



 Log.d/TAG, message/;

 }



 private void Toast/String message/ {



 try {

 Toast.makeText/activity, message, Toast.LENGTH_SHORT/.show//;

 } catch /Exception e/ {

 e.printStackTrace//;

 }

 }



 private void Log/String message/ {



 Log.d/TAG, message/;

 }



 /**

 * This function return captured image path

 *

 * @param requestCode on activity result requestCode

 * @param resultCode on activity result resultCode

 * @param intent on activity result intent

 * @return ImageDetails values

 */

 public ImageDetails getImagePath/int requestCode, int resultCode, Intent intent/ {



 ImageDetails imageDetails = new ImageDetails//;



 if/resultCode == Activity.RESULT_OK/ {



 if/requestCode == CAMERA_CODE/ {

 imageDetails.setUri/mImageCaptureUri/;

 imageDetails.setPath/mImageCaptureUri.getPath///;

 Bitmap bitmap = null;



 try {

 bitmap = MediaStore.Images.Media.getBitmap/activity.getContentResolver//, mImageCaptureUri/;

 } catch /IOException e/ {

 LogToast/e.getMessage///;

 e.printStackTrace//;

 }

 imageDetails.setBitmap/bitmap/;

 imageDetails.setFile/new File/mImageCaptureUri.getPath////;



 } else if/requestCode == GALLERY_CODE/ {



 Uri uri = intent.getData//;



 imageDetails.setUri/uri/;

 Bitmap bitmap = null;



 try {

 bitmap = MediaStore.Images.Media.getBitmap/activity.getContentResolver//, uri/;

 } catch /IOException e/ {

 LogToast/e.getMessage///;

 e.printStackTrace//;

 }



 imageDetails.setBitmap/bitmap/;

 imageDetails.setFile/new File/uri.getPath////;

 imageDetails.setPath/uri.getPath///;



 } else if/requestCode == CROPPING_CODE/ {

 try {

 if/outPutFile.exists///{



 imageDetails.setUri/Uri.fromFile/outPutFile//;

 imageDetails.setFile/outPutFile/;

 imageDetails.setPath/outPutFile.getPath///;

 Bitmap photo = decodeFile/outPutFile/;

 imageDetails.setBitmap/photo/;

 }

 else {

 LogToast/"Error while save image"/;

 }

 } catch /Exception e/ {



 e.printStackTrace//;

 LogToast/e.getMessage///;

 }

 }



 } else {

 LogToast/"user cancelled."/;

 }



 return imageDetails;

 }



 /**

 * Open image pick dialog.<br/>

 * CAMERA_CODE

 * GALLERY_CODE

 */

 public void openImagePickOption// {



 final CharSequence[] items = { "Capture Photo", "Choose from Gallery", "Cancel" };



 AlertDialog.Builder builder = new AlertDialog.Builder/activity/;

 builder.setTitle/"Add Photo!"/;

 builder.setItems/items, new DialogInterface.OnClickListener// {

 @Override

 public void onClick/DialogInterface dialog, int item/ {



 if /items[item].equals/"Capture Photo"// {



 captureImage//;



 } else if /items[item].equals/"Choose from Gallery"// {



 pickImage//;



 } else if /items[item].equals/"Cancel"// {

 dialog.dismiss//;

 }

 }

 }/;

 builder.show//;

 }



 /**

 * decode from file to bitmap

 * @param f file

 * @return Bitmap data

 */

 private Bitmap decodeFile/File f/ {

 try {

 // decode image size

 BitmapFactory.Options o = new BitmapFactory.Options//;

 o.inJustDecodeBounds = true;

 BitmapFactory.decodeStream/new FileInputStream/f/, null, o/;



 // Find the correct scale value. It should be the power of 2.

 final int REQUIRED_SIZE = 512;

 int width_tmp = o.outWidth, height_tmp = o.outHeight;

 int scale = 1;

 while /true/ {

 if /width_tmp / 2 < REQUIRED_SIZE || height_tmp / 2 < REQUIRED_SIZE/

 break;

 width_tmp /= 2;

 height_tmp /= 2;

 scale *= 2;

 }



 // decode with inSampleSize

 BitmapFactory.Options o2 = new BitmapFactory.Options//;

 o2.inSampleSize = scale;

 return BitmapFactory.decodeStream/new FileInputStream/f/, null, o2/;

 } catch /FileNotFoundException e/ {



 Log/e.getMessage///;

 }

 return null;

 }



 /**

 * Capture image using camera <br/>

 * REQUEST_CODE = ImagePro.CAMERA_CODE

 */

 public void captureImage// {



 if/activity != null/ {



 Intent intent = new Intent/MediaStore.ACTION_IMAGE_CAPTURE/;

 File f = new File/android.os.Environment.getExternalStorageDirectory//, "temp1.jpg"/;

 mImageCaptureUri = Uri.fromFile/f/;

 intent.putExtra/MediaStore.EXTRA_OUTPUT, mImageCaptureUri/;

 activity.startActivityForResult/intent, CAMERA_CODE/;



 } else {



 LogToast/"Activity not assigned"/;

 }

 }



 /**

 * pick image from gallery

 */

 public void pickImage// {



 Intent i = new Intent/Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI/;

 activity.startActivityForResult/i, GALLERY_CODE/;

 }



 /**

 * cropping the uri image

 * @param uri - open cropping dialog using the uri data

 */

 public void croppingImage/Uri uri/ {



 CroppingIMG/uri/;

 }



 int CROP_IMG_X=512;

 int CROP_IMG_Y=512;



 public void croppingImage/Uri uri, int cropX, int cropY/ {



 CROP_IMG_X = cropX;

 CROP_IMG_Y = cropY;



 CroppingIMG/uri/;

 }



 File outPutFile=null;



 private void CroppingIMG/Uri uri/ {



 final ArrayList<croppingoption> cropOptions = new ArrayList&lt;&gt;//;



 Intent intent = new Intent/"com.android.camera.action.CROP"/;

 intent.setType/"image/*"/;



 List<resolveinfo> list = activity.getPackageManager//.queryIntentActivities/ intent, 0 /;

 int size = list.size//;

 if /size == 0/ {

 LogToast/"Can't find image croping app"/;

 } else {

 intent.setData/uri/;

 intent.putExtra/"outputX", CROP_IMG_X/;

 intent.putExtra/"outputY", CROP_IMG_Y/;

 intent.putExtra/"aspectX", 1/;

 intent.putExtra/"aspectY", 1/;

 intent.putExtra/"scale", true/;



 //Create output file here

 intent.putExtra/MediaStore.EXTRA_OUTPUT, Uri.fromFile/outPutFile//;



 if /size == 1/ {

 Intent i = new Intent/intent/;

 ResolveInfo res = list.get/0/;



 i.setComponent/ new ComponentName/res.activityInfo.packageName, res.activityInfo.name//;



 activity.startActivityForResult/i, CROPPING_CODE/;

 } else {

 for /ResolveInfo res : list/ {

 final CroppingOption co = new CroppingOption//;



 co.title = activity.getPackageManager//.getApplicationLabel/res.activityInfo.applicationInfo/;

 co.icon = activity.getPackageManager//.getApplicationIcon/res.activityInfo.applicationInfo/;

 co.appIntent = new Intent/intent/;

 co.appIntent.setComponent/ new ComponentName/res.activityInfo.packageName, res.activityInfo.name//;

 cropOptions.add/co/;

 }



 CropingOptionAdapter adapter = new CropingOptionAdapter/activity.getApplicationContext//, cropOptions/;



 AlertDialog.Builder builder = new AlertDialog.Builder/activity/;

 builder.setTitle/"Choose Cropping App"/;

 builder.setCancelable/false/;

 builder.setAdapter/ adapter, new DialogInterface.OnClickListener// {

 public void onClick/ DialogInterface dialog, int item / {

 activity.startActivityForResult/ cropOptions.get/item/.appIntent, CROPPING_CODE/;

 }

 }/;



 builder.setOnCancelListener/ new DialogInterface.OnCancelListener// {

 @Override

 public void onCancel/ DialogInterface dialog / {



 if /mImageCaptureUri != null / {

 activity.getContentResolver//.delete/mImageCaptureUri, null, null /;

 mImageCaptureUri = null;

 }

 }

 } /;



 AlertDialog alert = builder.create//;

 alert.show//;

 }

 }

 }



 /**

 * Capture image using camera<br/>

 * REQUEST_CODE = User defined code<br/>

 * <br/>

 * @param iRequestCode User defined code

 */

 public void captureImage/int iRequestCode/ {



 CAMERA_CODE = iRequestCode;

 captureImage//;

 }



 /**

 * get path, bitmap, file and uri from image details object

 */

 public class ImageDetails {



 String path="";

 Bitmap bitmap=null;

 File file=null;

 Uri uri=null;



 public Uri getUri// {

 return uri;

 }



 public void setUri/Uri uri/ {

 this.uri = uri;

 }



 public String getPath// {

 return path;

 }



 public void setPath/String path/ {

 this.path = path;

 }



 public Bitmap getBitmap// {

 return bitmap;

 }



 public void setBitmap/Bitmap bitmap/ {

 this.bitmap = bitmap;

 }



 public File getFile// {

 return file;

 }



 public void setFile/File file/ {

 this.file = file;

 }

 }



 /**

 * Created by DP on 7/12/2016.

 */

 public class CroppingOption {

 public CharSequence title;

 public Drawable icon;

 public Intent appIntent;

 }



 public class CropingOptionAdapter extends ArrayAdapter {

 private ArrayList<croppingoption> mOptions;

 private LayoutInflater mInflater;



 public CropingOptionAdapter/Context context, ArrayList<croppingoption> options/ {



 super/context, R.layout.croping_selector, options/;

 mOptions = options;

 mInflater = LayoutInflater.from/context/;

 }



 @Override

 public View getView/int position, View convertView, ViewGroup group/ {

 if /convertView == null/

 convertView = mInflater.inflate/R.layout.croping_selector, null/;



 CroppingOption item = mOptions.get/position/;



 if /item != null/ {

 //ImageView/ convertView.findViewById/R.id.img_icon//.setImageDrawable/item.icon/;

 //TextView/ convertView.findViewById/R.id.txt_name//.setText/item.title/;



 return convertView;

 }



 return null;

 }

 }

}

MainActivity.java

ImagePro imagePro;



 @Override

 protected void onCreate/Bundle savedInstanceState/ {

 super.onCreate/savedInstanceState/;

 setContentView/R.layout.activity_main/;

 imagePro = new ImagePro/this/;

 }



 public void onClickUploadImageButton/View view/ {



 imagePro.openImagePickOption//;

 }

onActivityResult

if/requestCode == CAMERA_CODE &amp;&amp; resultCode == RESULT_OK/ {



 imageDetails = imagePro.getImagePath/CAMERA_CODE, RESULT_OK, data/;

 ivCrop.setImageBitmap/imageDetails.getBitmap///;

//imageDetails.getPath//, imageDetails.getBitmap//, imageDetails.getUri//, imageDetails.getFile

 }

</croppingoption></croppingoption></resolveinfo></croppingoption>

Android 使用按钮打开相机

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