import com.github.mikephil.charting.jobs.ZoomJob; //导入依赖的package包/类
/**
 * Zooms in or out by the given scale factor.
 * x and y are the values (NOT PIXELS) of the zoom center..
 *
 * @param scaleX
 * @param scaleY
 * @param xValue
 * @param yValue
 * @param axis   the axis relative to which the zoom should take place
 */
public void zoom(float scaleX, float scaleY, float xValue, float yValue, AxisDependency axis) {

    Runnable job = ZoomJob.getInstance(mViewPortHandler, scaleX, scaleY, xValue, yValue, getTransformer(axis), axis, this);
    addViewportJob(job);
}
 

import com.github.mikephil.charting.jobs.ZoomJob; //导入依赖的package包/类
/**
 * Zooms in or out by the given scale factor.
 * x and y are the values (NOT PIXELS) which to zoom to or from (the values of the zoom center).
 *
 * @param scaleX
 * @param scaleY
 * @param xValue
 * @param yValue
 * @param axis   the axis relative to which the zoom should take place
 */
public void zoom(float scaleX, float scaleY, float xValue, float yValue, AxisDependency axis) {

    Runnable job = new ZoomJob(mViewPortHandler, scaleX, scaleY, xValue, yValue, getTransformer(axis), axis, this);
    addViewportJob(job);
}
 

import com.github.mikephil.charting.jobs.ZoomJob; //导入依赖的package包/类
/**
 * Zooms in or out by the given scale factor.
 * x and y are the values (NOT PIXELS) which to zoom to or from (the values of the zoom center).
 *
 * @param scaleX
 * @param scaleY
 * @param xValue
 * @param yValue
 * @param axis   the axis relative to which the zoom should take place
 */
public void zoom(float scaleX, float scaleY, float xValue, float yValue, YAxis.AxisDependency axis) {

    Runnable job = new ZoomJob(mViewPortHandler, scaleX, scaleY, xValue, yValue, getTransformer(axis), axis, this);
    addViewportJob(job);
}