private View.OnClickListener mChoosePhotoAlbumListener = new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
//根据版本号不同使用不同的Action
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
intent.setAction(Intent.ACTION_GET_CONTENT);
}
else {
intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
}
intent.setType("image/*");
intent.putExtra("crop", "true");
intent.putExtra("scale", "true");
intent.putExtra("scaleUpIfNeeded", true); //部分机型没有设置该参数截图会有黑边
intent.putExtra("aspectX", 10);
intent.putExtra("aspectY", mAspectY);
// outputX outputY 是裁剪图片宽高
intent.putExtra("outputX", mWidth);
intent.putExtra("outputY", mHeight);
// 输出路径
intent.putExtra("output", Uri.fromFile(new File(mThemePath)));
startActivityForResult(intent, REQUEST_CODE_SELECT_FROM_ALBUM);
}
};
//关于裁剪框你需要知道的;
http://commonsware.com/blog/2013/01/23/no-android-does-not-have-crop-intent.html
处理方法1:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
switch (requestCode) {
case REQUEST_CODE_SELECT_FROM_ALBUM:
if(data != null) {
Uri imageUri;
if(data.getData() != null){
imageUri = data.getData();
} else {
imageUri = Uri.parse(mThemePath);
}
//TODO 自定义时id 为-1,
final String thumbPath = DirectoryBuilder.DIR_THEME + mUserId + "_thumb" + ".png";
SessionTheme sessionTheme = new SessionTheme();
sessionTheme.theme_id = -1;
sessionTheme.userId = mUserId;
sessionTheme.name = "user_defined";
sessionTheme.token = mUserId + "_defined_" + System.currentTimeMillis();
sessionTheme.isInnerResource = false;
sessionTheme.iconPath = thumbPath;
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
sessionTheme.themePath = imageUri.getPath();
}
else {
String wholeID = DocumentsContract.getDocumentId(imageUri);
if(!TextUtils.isEmpty(wholeID) && wholeID.contains(":")) {
// 获得资源唯一ID
String id = wholeID.split(":")[1];
// 定义索引字段
String[] column = { MediaStore.Images.Media.DATA };
String sel = MediaStore.Images.Media._ID + "=?";
Cursor cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column, sel, new String[] { id }, null);
int columnIndex = cursor.getColumnIndex(column[0]);
if (cursor.moveToFirst()) {
// DATA字段就是本地资源的全路径
String filePath = cursor.getString(columnIndex);
sessionTheme.themePath = filePath;
}
// 切记要关闭游标
cursor.close();
}
}
sessionTheme.status = SessionTheme.THEME_STATE_USER_DEFINED;
mReturnTheme = sessionTheme;
//异步更新 预览ICON
saveIconTask(imageUri, thumbPath);
}
break;
default:
break;
}
}
}
处理方法2:
/**
* Get a file path from a Uri. This will get the the path for Storage Access
* Framework Documents, as well as the _data field for the MediaStore and
* other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @author paulburke
*/
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];
}
// TODO handle non-primary volumes
}
// 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 getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
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 column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_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());
}