Android frameworks 开发总结之十(lock screen message Battery Last full charge)

1.設置lock screen message後不显示

XXXt設備設置lock screen message後，發現鎖頻界面不顯示內容，像時間日期都不顯示。只在右上角顯示一個鎖圖標，需要向下滑動一下才能顯示出來。布局文件位置: frameworks/base/packages/SystemUI/res-keyguard/layout/keyguard_status_view.xml 修改:frameworks/base/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java中的layoutOwnerInfo方法:

private void layoutOwnerInfo() {
        if (mOwnerInfo != null && mOwnerInfo.getVisibility() != GONE) {
            // Animate owner info during wake-up transition
            mOwnerInfo.setAlpha(1f - mDarkAmount);

            float ratio = mDarkAmount;
            // Calculate how much of it we should crop in order to have a smooth transition
            int collapsed = mOwnerInfo.getTop() - mOwnerInfo.getPaddingTop();
            int expanded = mOwnerInfo.getBottom() + mOwnerInfo.getPaddingBottom();
            int toRemove = (int) ((expanded - collapsed) * ratio);
            mOwnerInfo.setTop(mIconTopMarginWithHeader * 4);
            setBottom(getMeasuredHeight() - 50);
            if (mNotificationIcons != null) {
                // We're using scrolling in order not to overload the translation which is used
                // when appearing the icons
                mNotificationIcons.setScrollY(toRemove);
            }
        } else if (mNotificationIcons != null){
            mNotificationIcons.setScrollY(0);
        }
    }

在其它设备上（在横屏的情况下不显示lock screen message，原因是字体过大导致的，修改方式：

private void updateOwnerInfo() {
    if (mOwnerInfo == null) return;
    String info = mLo