【移动应用开发技术】Android中怎么保存图片到系统图库

【移动应用开发技术】Android中怎么保存图片到系统图库

public

static

File

saveImage(Bitmap

bmp)

{

File

appDir

=

new

File(Environment.getExternalStorageDirectory(),

"Boohee");

if

(!appDir.exists())

{

appDir.mkdir();

}

String

fileName

=

System.currentTimeMillis()

+

".jpg";

File

file

=

new

File(appDir,

fileName);

try

{

FileOutputStream

fos

=

new

FileOutputStream(file);

press(CompressFormat.JPEG,

100,

fos);

fos.flush();

fos.close();

}

catch

(FileNotFoundException

e)

{

e.printStackTrace();

}

catch

(IOException

e)

{

e.printStackTrace();

}

}第二种是调用系统提供的插入图库的方法：final

MediaScannerConnection

msc

=

new

MediaScannerConnection(mContext,

new

MediaScannerConnectionClient()

{

public

void

onMediaScannerConnected()

{

msc.scanFile("/sdcard/Boohee/image.jpg",

"image/jpeg");

}

public

void

onScanCompleted(String

path,

Uri

uri)

{

Log.v(TAG,

"scan

completed");

msc.disconnect();

}

});终极完美解决方案public

static

void

saveImageToGallery(Context

context,

Bitmap

bmp)

{

//

首先保存图片

File

appDir

=

new

File(Environment.getExternalStorageDirectory(),

"Boohee");

if

(!appDir.exists())

{

appDir.mkdir();

}

String

fileName

=

System.currentTimeMillis()

+

".jpg";

File

file

=

new

File(appDir,

fileName);

try

{

FileOutputStream

fos

=

new

FileOutputStream(file);

press(CompressFormat.JPEG,

100,

fos);

fos.flush();

fos.close();

}

catch

(FileNotFoundException

e)

{

e.printStackTrace();

}

catch

(IOException

e)

{

e.printStackTrace();

}

//

其次把文件插入到系统图库

try

{

MediaStore.Images.Media.insertImage(context.getContentResolver(),

file.getAbsolutePath(),

fileName,

null);

}

catch

(FileNotFoundException

e)

{

e.printStackTrace();

}

//

最后通知图库更新

context.sendBr