import com.github.mikephil.charting.renderer.LineChartRenderer; //导入依赖的package包/类
@Override
protected void onDetachedFromWindow() {
    // releases the bitmap in the renderer to avoid oom error
    if (mRenderer != null && mRenderer instanceof LineChartRenderer) {
        ((LineChartRenderer) mRenderer).releaseBitmap();
    }
    super.onDetachedFromWindow();
}
 

import com.github.mikephil.charting.renderer.LineChartRenderer; //导入依赖的package包/类
@Override
protected void onDetachedFromWindow() {
    // releases the bitmap in the renderer to avoid oom error
    if(mRenderer != null && mRenderer instanceof LineChartRenderer) {
        ((LineChartRenderer) mRenderer).releaseBitmap();
    }
    super.onDetachedFromWindow();
}
 

import com.github.mikephil.charting.renderer.LineChartRenderer; //导入依赖的package包/类
@Override
protected void onDetachedFromWindow() {
    // releases the bitmap in the renderer to avoid oom error
    if(mRenderer != null && mRenderer instanceof CustomLineChartRenderer) {
        ((LineChartRenderer) mRenderer).releaseBitmap();
    }
    super.onDetachedFromWindow();
}
 

import com.github.mikephil.charting.renderer.LineChartRenderer; //导入依赖的package包/类
@Override
protected void init() {
    super.init();

    mRenderer = new LineChartRenderer(this, mAnimator, mViewPortHandler);
}