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我正在開發一個應用程序,需要在某個時刻截屏並將其保存在文件系統中。我的問題是圖像在文件資源管理器中不可見,直到設備被重置,並且在某些模型中,圖像甚至不顯示,它只是一個不可讀的img文件(如曲線)。保存後未顯示黑莓屏幕截圖圖像文件
我的代碼,以圖像爲:
private Bitmap getScreenShot(){
Bitmap bitmap;
bitmap = new Bitmap(Display.getWidth(), Display.getHeight());
Display.screenshot(bitmap);
// return the screen shot
return bitmap;
}
private void saveInMemory(){
Bitmap screenShot = getScreenShot();
Date dateNow = new Date();
SimpleDateFormat dateformatYYYYMMDD = new SimpleDateFormat("yyyyMMddHHmmss");
String timeStamp = dateformatYYYYMMDD.format(dateNow);
String mFileName = System.getProperty("fileconn.dir.photos")
+ "RM_" + timeStamp + ".jpg";
PNGEncodedImage png = PNGEncodedImage.encode(screenShot);
writeFile(png.getData(), mFileName);
}
private void writeFile(byte[] data, String fileName) {
FileConnection fconn = null;
try {
fconn = (FileConnection) Connector.open(fileName);
} catch (IOException e) {
System.out.print("Error opening file");
}
if (fconn.exists()){
try {
fconn.delete();
} catch (IOException e) {
System.out.print("Error deleting file");
}
}
try {
fconn.create();
} catch (IOException e) {
System.out.print("Error creating file");
}
OutputStream out = null;
try {
out = fconn.openOutputStream();
} catch (IOException e) {
System.out.print("Error opening output stream");
}
try {
out.write(data);
} catch (IOException e) {
System.out.print("Error writing to output stream");
}
try {
fconn.close();
} catch (IOException e) {
System.out.print("Error closing file");
}
}
實際上,我已經有了解決方案,但它不讓我在接下來的5個小時內發佈它:p。我在最後關閉了outputStream – 2012-07-23 17:21:04