Java 更改方向时加载图片
为什么每个人我都有一些问题,我制作加载系统,就像那样(RSenApps给我一些建议和好的链接) 但主要的问题是,如果我改变方向,就会有问题,但我不知道为什么Java 更改方向时加载图片,java,android,Java,Android,为什么每个人我都有一些问题,我制作加载系统,就像那样(RSenApps给我一些建议和好的链接) 但主要的问题是,如果我改变方向,就会有问题,但我不知道为什么 BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; // BitmapFactory.decodeResource(getResources(), R.id.myimage, o
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
// BitmapFactory.decodeResource(getResources(), R.id.myimage, options);
int imageHeight = options.outHeight;
int imageWidth = options.outWidth;
String imageType = options.outMimeType;
loadedBmp=decodeSampledBitmapFromResource(mPicturePath, imageWidth, imageHeight);
public static int calculateInSampleSize( BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
// Calculate ratios of height and width to requested height and width
final int heightRatio = Math.round((float) height / (float) reqHeight);
final int widthRatio = Math.round((float) width / (float) reqWidth);
// Choose the smallest ratio as inSampleSize value, this will guarantee
// a final image with both dimensions larger than or equal to the
// requested height and width.
inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
}
return inSampleSize;
}
public static Bitmap decodeSampledBitmapFromResource(String mpath,
int reqWidth, int reqHeight) {
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(mpath, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeFile(mpath, options);
}
BitmapFactory.Options=new-BitmapFactory.Options();
options.inJustDecodeBounds=true;
//解码资源(getResources(),R.id.myimage,选项);
int imageHeight=options.outHeight;
int imageWidth=options.outWidth;
字符串imageType=options.outMimeType;
loadedBmp=decodeSampledBitmapFromResource(MPicurePath、imageWidth、imageHeight);
公共静态int-calculateInSampleSize(BitmapFactory.Options选项、int-reqWidth、int-reqHeight){
//图像的原始高度和宽度
最终内部高度=options.outHeight;
最终整数宽度=options.outWidth;
int inSampleSize=1;
如果(高度>要求高度| |宽度>要求宽度){
//计算高度和宽度与所需高度和宽度的比率
最终内部高度比=数学圆((浮动)高度/(浮动)要求高度);
最终整数宽度比=数学圆((浮动)宽度/(浮动)宽度);
//选择最小比率作为采样值,这将保证
//最终图像的两个尺寸均大于或等于
//要求的高度和宽度。
inSampleSize=高度比<宽度比?高度比:宽度比;
}
返回样本大小;
}
公共静态位图解码SampledBitMapFromResource(字符串mpath,
输入要求宽度,输入要求高度){
//使用INJUSTDECBOUNDS首次解码=true检查尺寸
final BitmapFactory.Options=new BitmapFactory.Options();
options.inJustDecodeBounds=true;
BitmapFactory.decodeFile(mpath,选项);
//计算样本大小
options.inSampleSize=计算样本大小(options、reqWidth、reqHeight);
//使用inSampleSize集合解码位图
options.inJustDecodeBounds=false;
返回BitmapFactory.decodeFile(mpath,选项);
}
检查那里的文本!
检查那里的文本!
如果有人有建议,请帮助我?在您的清单文件中试试这个
<activity
android:name="Your Activity Name"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" android:windowSoftInputMode="adjustPan"/>
我想要所有方向的完整(较小的画布)图片,而不是一个方向屏幕