为什么直接设置4条线就会报空指针~

[alless1]

Caused by: java.lang.NullPointerException: Attempt to read from field 'float android.graphics.RectF.left' on a null object reference
at tech.linjiang.suitlines.SuitLines.buildPaintColor(SuitLines.java:814)
at tech.linjiang.suitlines.SuitLines.access$1000(SuitLines.java:61)
at tech.linjiang.suitlines.SuitLines$LineBuilder.build(SuitLines.java:1375)
at tech.linjiang.suitlines.simple.DemoChartActivity.init(DemoChartActivity.java:139)
at tech.linjiang.suitlines.simple.DemoChartActivity.onCreate(DemoChartActivity.java:32)

[bilifo]

这是作者的一个bug,在他源码SuitLines类种
/**
*
* @param color 不能为null
* @return
*/
private LinearGradient buildPaintColor(int[] color) {
int[] bakColor = color;
if (color != null && color.length < 2) {
bakColor = new int[2];
bakColor[0] = color[0];
bakColor[1] = color[0];
}
if(linesArea==null){ //添加该判断
calcAreas();
}
return new LinearGradient(linesArea.left, linesArea.top,
linesArea.left, linesArea.bottom, bakColor, null, Shader.TileMode.CLAMP);
}
即可