android.view.View#getPivotX ( )源码实例Demo

private static void computeRenderOffset(View view, float pivotX, float pivotY) {
    if (view.getPivotX() == pivotX && view.getPivotY() == pivotY) {
        return;
    }

    float[] prevPoint = {0.0f, 0.0f};
    view.getMatrix().mapPoints(prevPoint);

    view.setPivotX(pivotX);
    view.setPivotY(pivotY);

    float[] currPoint = {0.0f, 0.0f};
    view.getMatrix().mapPoints(currPoint);

    float offsetX = currPoint[0] - prevPoint[0];
    float offsetY = currPoint[1] - prevPoint[1];

    view.setTranslationX(view.getTranslationX() - offsetX);
    view.setTranslationY(view.getTranslationY() - offsetY);
}
 

private static void computeRenderOffset(View view, float pivotX, float pivotY) {
    if (view.getPivotX() == pivotX && view.getPivotY() == pivotY) {
        return;
    }

    float[] prevPoint = {0.0f, 0.0f};
    view.getMatrix().mapPoints(prevPoint);

    view.setPivotX(pivotX);
    view.setPivotY(pivotY);

    float[] currPoint = {0.0f, 0.0f};
    view.getMatrix().mapPoints(currPoint);

    float offsetX = currPoint[0] - prevPoint[0];
    float offsetY = currPoint[1] - prevPoint[1];

    view.setTranslationX(view.getTranslationX() - offsetX);
    view.setTranslationY(view.getTranslationY() - offsetY);
}
 

/**
 * 获取水平方向偏转量
 * @param view {@link View}
 * @return 水平方向偏转量
 */
public static float getPivotX(final View view) {
    if (view != null) {
        return view.getPivotX();
    }
    return 0f;
}
 

static float getPivotX(View view) {
    return view.getPivotX();
}
 

static float getPivotX(View view) {
    return view.getPivotX();
}
 

public static float getPivotX(View view) {
    return view.getPivotX();
}
 

static float getPivotX(View view) {
    return view.getPivotX();
}
 

static float b(View view)
{
    return view.getPivotX();
}
 

static float getPivotX(View view) {
    return view.getPivotX();
}
 

public static float getPivotX(View view) {
	return view.getPivotX();
}
 

public static float getPivotX(View view) {
    return view.getPivotX();
}
 

static float getPivotX(View view) {
    return view.getPivotX();
}
 

static float getPivotX(View view) {
    return view.getPivotX();
}
 

static float getPivotX(View view) {
    return view.getPivotX();
}