Android9.0 状态栏图标显示“点号”怎么办

最新推荐文章于 2022-09-29 09:50:43 发布

三泥1121

最新推荐文章于 2022-09-29 09:50:43 发布

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分类专栏：状态栏 Android开发文章标签： android

本文链接：https://blog.youkuaiyun.com/lidamign/article/details/106815486

现象

在这里插入图片描述
状态栏图标显示的个数有两个限制：
1.最大个数限制8个（包括battery）：
2.宽度限制；
最终能够显示的图标个数取这两个限制的较小值。

相关代码逻辑在com.android.systemui.statusbar.phone/StatusIconContainer.java类中：

 // Max 8 status icons including battery
 private static final int MAX_ICONS = 7;

@Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        mMeasureViews.clear();
        int mode = MeasureSpec.getMode(widthMeasureSpec);
        final int width = MeasureSpec.getSize(widthMeasureSpec);
        final int count = getChildCount();
        // Collect all of the views which want to be laid out
        for (int i = 0; i < count; i++) {
            StatusIconDisplayable icon = (StatusIconDisplayable) getChildAt(i);
            if (icon.isIconVisible() && !icon.isIconBlocked()) {
                mMeasureViews.add((View) icon);
            }
        }

        int visibleCount = mMeasureViews.size();
        int maxVisible = visibleCount <= MAX_ICONS ? MAX_ICONS : MAX_ICONS - 1;
        int totalWidth = mPaddingLeft + mPaddingRight;
        boolean trackWidth = true;

        // Measure all children so that they report the correct width
        int childWidthSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.UNSPECIFIED);
        mNeedsUnderflow = mShouldRestrictIcons && visibleCount > MAX_ICONS;
        for (int i = 0; i < mMeasureViews.size(); i++) {
            // Walking backwards
            View child = mMeasureViews.get(visibleCount - i - 1);