知道图片名字怎么获得图片

Question

img=(ImageView)findViewById(R.id.picture);
ApplicationInfo appInfo = getApplicationInfo();
int resID = getResources().getIdentifier("hubei.jpg", "drawable", appInfo.packageName);
img.setImageResource(resID);
我这样写的，但是resID总是0，不能用img.setImageResource(R.drawable.hubei);

Answer 1

不要带后续名。 比如你这里就是 "hubei"，另外如果还不成功，则检查你的packageName是否正确。 建议参考 launcher 的 wallpaperChooser，我摘一点代码你给参考：
[code="java"]
private void findWallpapers() {
mThumbs = new ArrayList(24);
mImages = new ArrayList(24);

    final Resources resources = getResources();
    // Context.getPackageName() may return the "original" package name,
    // com.fmsoft.launcher2; Resources needs the real package name,
    // com.fmsoft.launcher. So we ask Resources for what it thinks the
    // package name should be.
    final String packageName = resources.getResourcePackageName(R.array.wallpapers);

    addWallpapers(resources, packageName, R.array.wallpapers);
    addWallpapers(resources, packageName, R.array.extra_wallpapers);
}

private void addWallpapers(Resources resources, String packageName, int list) {
    final String[] extras = resources.getStringArray(list);
    for (String extra : extras) {
        int res = resources.getIdentifier(extra, "drawable", packageName);
        if (res != 0) {
            final int thumbRes = resources.getIdentifier(extra + "_small",
                    "drawable", packageName);

            if (thumbRes != 0) {
                mThumbs.add(thumbRes);
                mImages.add(res);
            }
        }
    }
}[/code]