android客户端学习-拍照或从相册选择图片并裁剪
2015-10-13 14:29
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1.在activity中定义变量
private final int RESULT_PHOTO_KITKAT = 0;//图库返回
private final int RESULT_PHOTO = 1;//相册返回
private final int RESULT_CAMERA = 2;//相机返回
private final int RESULT_CROP = 3;//裁剪
private final int RESULT_ADBAR = 5;//返回
private int outputX = 106; // 裁剪的宽度
private int outputY = 106; // 裁剪高度
private int aspectX = 2; // 宽的比例
private int aspectY = 2; // 高的比例
2.定义调用的方法：getImage();
private void getImage(){
String[] choices;
choices = new String[2];
choices[0] = "拍照";
choices[1] = "相册";
ListAdapter adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, choices);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("选择");
builder.setSingleChoiceItems(adapter, -1, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
switch (which) {
case 0:{
String status=Environment.getExternalStorageState();
if(status.equals(Environment.MEDIA_MOUNTED)){//判断是否有SD卡
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE, null);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
System.out.println("=============" + Environment.getExternalStorageDirectory());
PersonInfoActivity.this.startActivityForResult(intent,RESULT_CAMERA);
}
else{
toast("没有SD卡");
}
break;
}
case 1:
// 从相册中去获取
if(android.os.Build.VERSION.SDK_INT>=android.os.Build.VERSION_CODES.KITKAT){
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
startActivityForResult(intent, RESULT_PHOTO_KITKAT);
}else{
getPhoto();
}
break;
}
}
});
builder.setNegativeButton("返回", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
private void getPhoto(){
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
intent.putExtra("crop", "true");
//裁剪框比例
intent.putExtra("aspectX", aspectX);
intent.putExtra("aspectY", aspectY);
//图片输出大小
intent.putExtra("outputX", outputX);
intent.putExtra("outputY", outputY);
intent.putExtra("scale", true);
intent.putExtra("return-data", true);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
//不启用人脸识别
intent.putExtra("noFaceDetection", false);
if(android.os.Build.VERSION.SDK_INT>=android.os.Build.VERSION_CODES.KITKAT){
startActivityForResult(intent, RESULT_PHOTO_KITKAT);
}else{
startActivityForResult(intent, RESULT_PHOTO);
}
}
/** 相机裁剪 */
private void getCrop(Uri uri){
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(uri, "image/*");
intent.putExtra("crop", "true");//可裁剪
intent.putExtra("aspectX", aspectX);
intent.putExtra("aspectY", aspectY);
intent.putExtra("outputX", outputX);
intent.putExtra("outputY", outputY);
intent.putExtra("scale", true);
intent.putExtra("return-data", false);//若为false则表示不返回数据
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true);
startActivityForResult(intent, RESULT_CROP);
}
/**
* 判断手机是否有SD卡。
*
* @return 有SD卡返回true，没有返回false。
*/
public boolean hasSDCard() {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
}
/**
* <br>功能简述:4.4及以上获取图片的方法
* <br>功能详细描述:
* <br>注意:
* @param context
* @param uri
* @return
*/
@TargetApi(Build.VERSION_CODES.KITKAT)
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] { split[1] };
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = { column };
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
3.回调
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
Uri url = null;
Bitmap bitmap = null;
switch (requestCode) {
case RESULT_PHOTO_KITKAT:
String mAlbumPicturePath = getPath(getApplicationContext(), data.getData());
url = Uri.fromFile(new File(mAlbumPicturePath));
getCrop(url);
break;
case RESULT_PHOTO:
Object object = data.getExtras().get("data");
if (object instanceof Bitmap){
Bitmap cameraBitmap = (Bitmap) object;
person_logo.setImageBitmap(cameraBitmap);
}
break;
case RESULT_CAMERA:
url = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg"));
getCrop(url);
break;
case RESULT_CROP:
try {
url = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg"));
bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(url));
person_logo.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
break;
case RESULT_ADBAR:
break;
default:
break;
}
}
}
private final int RESULT_PHOTO_KITKAT = 0;//图库返回
private final int RESULT_PHOTO = 1;//相册返回
private final int RESULT_CAMERA = 2;//相机返回
private final int RESULT_CROP = 3;//裁剪
private final int RESULT_ADBAR = 5;//返回
private int outputX = 106; // 裁剪的宽度
private int outputY = 106; // 裁剪高度
private int aspectX = 2; // 宽的比例
private int aspectY = 2; // 高的比例
2.定义调用的方法：getImage();
private void getImage(){
String[] choices;
choices = new String[2];
choices[0] = "拍照";
choices[1] = "相册";
ListAdapter adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, choices);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("选择");
builder.setSingleChoiceItems(adapter, -1, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
switch (which) {
case 0:{
String status=Environment.getExternalStorageState();
if(status.equals(Environment.MEDIA_MOUNTED)){//判断是否有SD卡
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE, null);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
System.out.println("=============" + Environment.getExternalStorageDirectory());
PersonInfoActivity.this.startActivityForResult(intent,RESULT_CAMERA);
}
else{
toast("没有SD卡");
}
break;
}
case 1:
// 从相册中去获取
if(android.os.Build.VERSION.SDK_INT>=android.os.Build.VERSION_CODES.KITKAT){
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
startActivityForResult(intent, RESULT_PHOTO_KITKAT);
}else{
getPhoto();
}
break;
}
}
});
builder.setNegativeButton("返回", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
private void getPhoto(){
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
intent.putExtra("crop", "true");
//裁剪框比例
intent.putExtra("aspectX", aspectX);
intent.putExtra("aspectY", aspectY);
//图片输出大小
intent.putExtra("outputX", outputX);
intent.putExtra("outputY", outputY);
intent.putExtra("scale", true);
intent.putExtra("return-data", true);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
//不启用人脸识别
intent.putExtra("noFaceDetection", false);
if(android.os.Build.VERSION.SDK_INT>=android.os.Build.VERSION_CODES.KITKAT){
startActivityForResult(intent, RESULT_PHOTO_KITKAT);
}else{
startActivityForResult(intent, RESULT_PHOTO);
}
}
/** 相机裁剪 */
private void getCrop(Uri uri){
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(uri, "image/*");
intent.putExtra("crop", "true");//可裁剪
intent.putExtra("aspectX", aspectX);
intent.putExtra("aspectY", aspectY);
intent.putExtra("outputX", outputX);
intent.putExtra("outputY", outputY);
intent.putExtra("scale", true);
intent.putExtra("return-data", false);//若为false则表示不返回数据
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true);
startActivityForResult(intent, RESULT_CROP);
}
/**
* 判断手机是否有SD卡。
*
* @return 有SD卡返回true，没有返回false。
*/
public boolean hasSDCard() {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
}
/**
* <br>功能简述:4.4及以上获取图片的方法
* <br>功能详细描述:
* <br>注意:
* @param context
* @param uri
* @return
*/
@TargetApi(Build.VERSION_CODES.KITKAT)
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] { split[1] };
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = { column };
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
3.回调
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
Uri url = null;
Bitmap bitmap = null;
switch (requestCode) {
case RESULT_PHOTO_KITKAT:
String mAlbumPicturePath = getPath(getApplicationContext(), data.getData());
url = Uri.fromFile(new File(mAlbumPicturePath));
getCrop(url);
break;
case RESULT_PHOTO:
Object object = data.getExtras().get("data");
if (object instanceof Bitmap){
Bitmap cameraBitmap = (Bitmap) object;
person_logo.setImageBitmap(cameraBitmap);
}
break;
case RESULT_CAMERA:
url = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg"));
getCrop(url);
break;
case RESULT_CROP:
try {
url = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg"));
bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(url));
person_logo.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
break;
case RESULT_ADBAR:
break;
default:
break;
}
}
}
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