捕获图像崩溃的HTC设备 [英] Capturing images crashing on HTC devices
本文介绍了捕获图像崩溃的HTC设备的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
您好我正在开发一个应用程序，捕捉图像，并通过电子邮件发送捕捉的图像正在三星galaxy和索尼爱立信XPERIA不错，但它不工作的HTC设备任何人都知道一个道理，为什么？这里是我的code拍摄照片
{尝试
JPG字符串文件名= IMAGE_NAME +;
//创建与文件名参数意向
ContentValues值=新ContentValues（）;
values.put（MediaStore.Images.Media.TITLE，文件名）;
values.put（MediaStore.Images.Media.DESCRIPTION，由摄像机图像捕捉）;
// imageUri是当前活动属性，定义并保存起来以备以后使用（也的onSaveInstanceState）
outuri = getContentResolver（）。插入（
MediaStore.Images.Media.EXTERNAL_CONTENT_URI，价值观）;
意图cameraIntent =新意图（MediaStore.ACTION_IMAGE_CAPTURE）;
// outuri = Uri.fromFile（照片）;
cameraIntent.putExtra（MediaStore.EXTRA_OUTPUT，outuri）;
cameraIntent.putExtra（回归数据，真正的）;
startActivityForResult（cameraIntent，2）;
}赶上（例外五）{
Toast.makeText（preview.this，+ E，Toast.LENGTH_LONG）.show（）;
}
和这里是我用来检索图像code
路径= convertImageUriToFile（outuri，preview.this）.getAbsolutePath（）;
arr.add（路径）;
尝试{
位=的getImage（路径）;
公共静态文件convertImageUriToFile（URI imageUri，活动活动）{
光标光标= NULL;
尝试{
的String [] = PROJ {MediaStore.Images.Media.DATA，MediaStore.Images.Media._ID，MediaStore.Images.ImageColumns.ORIENTATION};
光标= activity.managedQuery（imageUri，凸出，//哪些列返回
空，// WHERE子句;该行返回（所有行）
空，// WHERE子句选择参数（无）
空值）; //订单by子句（按名称升序）
INT file_ColumnIndex = cursor.getColumnIndexOrThrow（MediaStore.Images.Media.DATA）;
INT orientation_ColumnIndex = cursor.getColumnIndexOrThrow（MediaStore.Images.ImageColumns.ORIENTATION）;
如果（cursor.moveToFirst（））{
字符串的方向= cursor.getString（orientation_ColumnIndex）;
返回新的文件（cursor.getString（file_ColumnIndex））;
}
返回null;
} {最后
如果（指针！= NULL）{
cursor.close（）;
}
}
} 公共位图的getImage（字符串路径）抛出IOException异常
{
BitmapFactory.Options选项=新BitmapFactory.Options（）;
options.inJustDe codeBounds = TRUE;
BitmapFactory.de codeFILE（路径选择）;
位图targetBitmap = NULL;
INT srcWidth = options.outWidth;
INT srcHeight = options.outHeight;
INT [] newWH =新INT [2];
newWH [0] = 1024;
newWH [1] =（1024 * srcHeight）/ srcWidth; INT inSampleSize = 1;
而（srcWidth / 2 - ; newWH [0]）{
srcWidth / = 2;
srcHeight / = 2;
inSampleSize * = 2;
}
//浮动desiredScale =（浮点）newWH [0] / srcWidth;
//德code。与inSampleSize
options.inJustDe codeBounds = FALSE;
options.inDither = FALSE;
options.inSampleSize = inSampleSize;
options.inScaled = FALSE;
options.in preferredConfig = Bitmap.Config.ARGB_8888;
位图sampledSrcBitmap = BitmapFactory.de codeFILE（路径选择）;
ExifInterface EXIF =新ExifInterface（路径）;
字符串s = exif.getAttribute（ExifInterface.TAG_ORIENTATION）;
System.out.println(\"Orientation>>>>>>>>>>>>>>>>>>>>\"+s);
字模=新的Matrix（）;
浮动旋转= rotationForImage（preview.this，Uri.fromFile（新文件（路径）））;
如果（旋转！= 0F）{
。矩阵preRotate（旋转）;
}
INT newh =（W * sampledSrcBitmap.getHeight（））/sampledSrcBitmap.getWidth（）;
位图R = Bitmap.createScaledBitmap（sampledSrcBitmap，W，newh，真正的）;
位图resizedBitmap = Bitmap.createBitmap（
R，0，0，W，newh，矩阵，真）; 返回resizedBitmap;
}
}
解决方案
很好，有一个在 Intent.putExtra（MediaStore.EXTRA_OUTPUT）一个已知的bug 键，它会导致崩溃的应用程序。
退房问同样的问题时，我得到了答案：<一href=\"http://stackoverflow.com/a/10613299/1056359\">http://stackoverflow.com/a/10613299/1056359
Hi I am developing a app that captures images and email it capturing the images is working fine on Samsung galaxy and Sony Ericsson xperia but it's not working on HTC devices anyone know a reason why ?? here is my code for capturing images
try {
String fileName = Image_name+".jpg";
//create parameters for Intent with filename
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, fileName);
values.put(MediaStore.Images.Media.DESCRIPTION,"Image capture by camera");
//imageUri is the current activity attribute, define and save it for later usage (also in onSaveInstanceState)
outuri = getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//outuri = Uri.fromFile(photo);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, outuri);
cameraIntent.putExtra("return-data", true);
startActivityForResult(cameraIntent, 2);
} catch (Exception e) {
Toast.makeText(preview.this, ""+e, Toast.LENGTH_LONG).show();
}
and here is code that I use to retrieve images
path = convertImageUriToFile(outuri, preview.this).getAbsolutePath();
arr.add(path);
try {
bitmap = getImage(path);
public static File convertImageUriToFile (Uri imageUri, Activity activity) {
Cursor cursor = null;
try {
String [] proj={MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID, MediaStore.Images.ImageColumns.ORIENTATION};
cursor = activity.managedQuery(imageUri, proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null); // Order-by clause (ascending by name)
int file_ColumnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
int orientation_ColumnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.ImageColumns.ORIENTATION);
if (cursor.moveToFirst()) {
String orientation = cursor.getString(orientation_ColumnIndex);
return new File(cursor.getString(file_ColumnIndex));
}
return null;
} finally {
if (cursor != null) {
cursor.close();
}
}
}
public Bitmap getImage(String path) throws IOException
{
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, options);
Bitmap targetBitmap=null;
int srcWidth = options.outWidth;
int srcHeight = options.outHeight;
int[] newWH = new int[2];
newWH[0] = 1024;
newWH[1] = (1024*srcHeight)/srcWidth;
int inSampleSize = 1;
while(srcWidth / 2 > newWH[0]){
srcWidth /= 2;
srcHeight /= 2;
inSampleSize *= 2;
}
// float desiredScale = (float) newWH[0] / srcWidth;
// Decode with inSampleSize
options.inJustDecodeBounds = false;
options.inDither = false;
options.inSampleSize = inSampleSize;
options.inScaled = false;
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bitmap sampledSrcBitmap = BitmapFactory.decodeFile(path,options);
ExifInterface exif = new ExifInterface(path);
String s=exif.getAttribute(ExifInterface.TAG_ORIENTATION);
System.out.println("Orientation>>>>>>>>>>>>>>>>>>>>"+s);
Matrix matrix = new Matrix();
float rotation = rotationForImage(preview.this, Uri.fromFile(new File(path)));
if (rotation != 0f) {
matrix.preRotate(rotation);
}
int newh = ( w * sampledSrcBitmap.getHeight() ) /sampledSrcBitmap.getWidth();
Bitmap r=Bitmap.createScaledBitmap(sampledSrcBitmap, w, newh, true);
Bitmap resizedBitmap = Bitmap.createBitmap(
r, 0, 0, w, newh, matrix, true);
return resizedBitmap;
}
}
解决方案
well, there's a known bug in the Intent.putExtra(MediaStore.EXTRA_OUTPUT) and it causes a crash in the app.
check out the answer I got when asking the same question: http://stackoverflow.com/a/10613299/1056359
这篇关于捕获图像崩溃的HTC设备的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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