姜饼上的渐变

发布于 2024-11-25 04:04:49 字数 2195 浏览 1 评论 0原文

已更新
我在 android 2.3 上遇到渐变位图问题。我读了这篇很棒的文章并且使用下一个选项解码我的位图:

BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
options.inDither = true;
And on android 2.2 everything is great, but on android 2.3 gradient artifacts remain even after that decoding.

我使用我的位图在 2.3 上运行 文章中的应用程序,所有变体都是 不好:16/32 位,(不)抖动和 RBG_565、ARGB_8888 和 ARGB_4444 - 渐变有伪影。我还尝试在没有选项的情况下进行解码。 一切都很好。抱歉,问题出在

opts.inScaled=true;
opts.inDensity=100;
opts.inTargetDensity=800;


但是现在我需要在 android 2.3 上运行此代码,但它仍然会产生错误的渐变(在 android 2.2 上一切正常):

    ImageView imageView = (ImageView) tabView.findViewById(R.id.tabsImage);
    // decode bitmaps
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inPreferredConfig = Bitmap.Config.ARGB_8888;
    options.inDither = true;
    Bitmap tabImageOn = BitmapFactory.decodeResource(mainActivity.getResources(), tabImageResourceOnId, options);
    Bitmap tabImageOff = BitmapFactory.decodeResource(mainActivity.getResources(), tabImageResourceOffId, options);
    // create new selector
    StateListDrawable tabImage = new StateListDrawable();
    tabImage.addState(new int[] { android.R.attr.state_selected }, new BitmapDrawable(mainActivity.getResources(), tabImageOn));
    tabImage.addState(new int[] {}, new BitmapDrawable(mainActivity.getResources(), tabImageOff));
    tabImage.setDither(true);
    // set selector to tab
    imageView.setImageDrawable(tabImage);
I tried to set window pixel format in onCreate/before/after that method next way:

    WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
    lp.copyFrom(getWindow().getAttributes());
    lp.format = PixelFormat.RGBA_8888;
    getWindow().setAttributes(lp);

但没有任何改变(它是姜饼,它使用 32 位窗口格式)。

为什么会出现这种行为以及如何解决我的问题?

谢谢。再会!

Updated
I have a problem with gradient bitmaps on android 2.3. I read this great article and decode my bitmaps using next options:

BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
options.inDither = true;


And on android 2.2 everything is great, but on android 2.3 gradient artifacts remain even after that decoding.

I run application from article on 2.3 with my bitmaps and all variants are bad: 16/32 bit, (not) dither and RBG_565, ARGB_8888 and ARGB_4444 - gradient has artifacts. Also I tried to decode without options. Everything is ok. Sorry, problem was in

opts.inScaled=true;
opts.inDensity=100;
opts.inTargetDensity=800;


But now I need to make working this code on android 2.3 and its still produce bad gradient (on android 2.2 everything is ok):

    ImageView imageView = (ImageView) tabView.findViewById(R.id.tabsImage);
    // decode bitmaps
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inPreferredConfig = Bitmap.Config.ARGB_8888;
    options.inDither = true;
    Bitmap tabImageOn = BitmapFactory.decodeResource(mainActivity.getResources(), tabImageResourceOnId, options);
    Bitmap tabImageOff = BitmapFactory.decodeResource(mainActivity.getResources(), tabImageResourceOffId, options);
    // create new selector
    StateListDrawable tabImage = new StateListDrawable();
    tabImage.addState(new int[] { android.R.attr.state_selected }, new BitmapDrawable(mainActivity.getResources(), tabImageOn));
    tabImage.addState(new int[] {}, new BitmapDrawable(mainActivity.getResources(), tabImageOff));
    tabImage.setDither(true);
    // set selector to tab
    imageView.setImageDrawable(tabImage);


I tried to set window pixel format in onCreate/before/after that method next way:

    WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
    lp.copyFrom(getWindow().getAttributes());
    lp.format = PixelFormat.RGBA_8888;
    getWindow().setAttributes(lp);

But nothing has been changed (it's gingerbread, it's using 32 bit window format).

Why do so behaviour appear and how can i solve my problem?

Thanks. Good day!

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双手揣兜 2024-12-02 04:04:49

通过将可绘制对象移动到 hdpi 文件夹来解决。

solved with moving drawables to hdpi folder.

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