有没有办法在 Showcase 视图中设置 Title 和 Message 的位置?我看到库使用一个函数来找到最佳位置,但我想覆盖它。
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1 回答
8
我只是深入研究了ShowcaseView
源代码,似乎没有内置方法来设置文本位置。所以我将自己的修改添加到库中。这是我所做的更改:
在课堂ShowcaseView
上添加了这些字段:
private boolean hasManualPostion = false;
private int xPosition, yPosition, width;
然后在Builder
类的内部类中ShowcaseView
,添加这些方法:
public Builder hasManualPosition(boolean hasManualPosition) {
showcaseView.hasManualPostion = hasManualPosition;
return this;
}
public Builder xPostion(int xPostion) {
showcaseView.xPosition = xPostion;
return this;
}
public Builder yPostion(int yPostion) {
showcaseView.yPosition = yPostion;
return this;
}
之后,将此方法添加到TextDrawer
类中:
public void setTestPostionManually(int xPosition, int yPosition) {
mBestTextPosition[0] = xPosition;
mBestTextPosition[1] = yPosition;
}
最后将onPreDraw
方法更改ShowcaseView
为如下所示:
@Override
public boolean onPreDraw() {
boolean recalculatedCling = showcaseAreaCalculator.calculateShowcaseRect(showcaseX, showcaseY, showcaseDrawer);
boolean recalculateText = recalculatedCling || hasAlteredText;
if (recalculateText) {
textDrawer.calculateTextPosition(getMeasuredWidth(), getMeasuredHeight(), this, shouldCentreText);
if (hasManualPostion) {
textDrawer.setTestPostionManually(xPosition, yPosition);
}
}
hasAlteredText = false;
return true;
}
现在你应该ShowcaseView
像这样创建:
sv = new ShowcaseView.Builder(this, true)
.setTarget(target)
.setContentTitle(R.string.showcase_main_title)
.setContentText(R.string.showcase_main_message)
.setStyle(R.style.CustomShowcaseTheme2)
.setShowcaseEventListener(this)
.hasManualPosition(true)
.xPostion(0)
.yPostion(240)
.build();
享受!
于 2014-08-15T05:51:20.070 回答