我正在开发一个在活动顶部包含一个形状的android应用程序,我正在尝试实现它,但努力做到这一点。
我试图创建一个可绘制的文件,该文件创建一个三角形并设置底角半径以匹配上面的形状,但不起作用。任何人都可以帮助我。
您可以使用官方EdgeTreatment
中包含的EdgeTreatment
。
只需用以下内容扩展Material Components Library:
EdgeTreatment
然后应用它:
public class MyTriangleEdge extends EdgeTreatment {
private final float size;
private final boolean inside;
public MyTriangleEdge(float size, boolean inside) {
this.size = size;
this.inside = inside;
}
@Override
public void getEdgePath(
float length, float center, float interpolation, @NonNull ShapePath shapePath) {
shapePath.lineTo(0, 0);
shapePath.lineTo(center, inside ? size : -size );
shapePath.lineTo(length, 0);
}
MyTriangleEdge edgeTreatment = new MyTriangleEdge(height,false);
LinearLayout linearLayout= findViewById(R.id.xxxx);
ShapeAppearanceModel shapeAppearanceModel = new ShapeAppearanceModel()
.toBuilder()
.setBottomEdge(edgeTreatment)
.build();
MaterialShapeDrawable shapeDrawable = new MaterialShapeDrawable(shapeAppearanceModel);
ViewCompat.setBackground(linearLayout,shapeDrawable);