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嘿那里,我试图通过一个URL在动态壁纸中加载图像...这可能吗?如果是这样,你可以告诉我为什么这段代码不工作(日志 - “无法加载位图:”+ url)?谢谢!加载一个Live WallPaper的URL图像
引擎 - 可运行 - 运行():
...
c = holder.lockCanvas();
if (c != null) {
try {
final Bitmap b = BitmapUtils.loadBitmap("http://mw2.google.com/mw-panoramio/photos/medium/17287086.jpg");
c.drawBitmap(b, 0, 0, null);
} catch (Exception e) {
Log.e("Debug", e.toString());
}
}
...
BitmapUtils
public static Bitmap loadBitmap(String url) {
Bitmap bitmap = null;
InputStream in = null;
BufferedOutputStream out = null;
try {
in = new BufferedInputStream(new URL(url).openStream(), IO_BUFFER_SIZE);
final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
out = new BufferedOutputStream(dataStream, IO_BUFFER_SIZE);
copy(in, out);
out.flush();
final byte[] data = dataStream.toByteArray();
bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
} catch (IOException e) {
Log.e(TAG, "Could not load Bitmap from: " + url);
} finally {
closeStream(in);
closeStream(out);
}
return bitmap;
}
如果你检查你的logcat你应该看到它告诉你一个信息或警告日志在您的代码中发生IOException。 – Torid 2011-05-27 01:11:28