2023年7月15日发(作者：)

简单实现ImageView宽度填满屏幕，⾼度⾃适应的两种⽅式⽅法⼀：//获取屏幕宽度WindowManager m = (WindowManager) temService(_SERVICE);DisplayMetrics outMetrics = new DisplayMetrics();aultDisplay().getMetrics(outMetrics); int width = ixels - dp2px(mContext, 10f) * 2;

//乘以2是因为左右两侧的宽度//bobaoArcWidth bobaoArcHeight 原始图⽚宽⾼int height = (int) (width / (loat(bobaoArcWidth)) * (loat(bobaoArcHeight)));//设置图⽚参数Params layoutParams = outParams();// = _PARENT; = width; = height;outParams(layoutParams); ragment(mContext, bobaoArcPic, istItemIamge);⽅发⼆public class ResizableImageView extends ImageView {public ResizableImageView(Context context) {

super(context);

}

public ResizableImageView(Context context, AttributeSet attrs) {

super(context, attrs);

}

@Override

protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec){

Drawable d = getDrawable();

if(d!=null){

// ceil not round - avoid thin vertical gaps along the left/right edges

int width = e(widthMeasureSpec);

//⾼度根据使得图⽚的宽度充满屏幕计算⽽得

int height = (int) ((float) width * (float) rinsicHeight() / (float) rinsicWidth());

setMeasuredDimension(width, height);

}else{

ure(widthMeasureSpec, heightMeasureSpec);

}

}

}

android:id="@+id/image"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:src="@drawable/test"

android:background="#FF0"/>

Three根据图⽚的宽度，⾼度，来按⽐例显⽰final String app_arc_pic = (position).ad_pic;String adPicHeight = (position).ad_pic_height;String adPicWidth = (position).ad_pic_width;int adPicH = nt(adPicHeight);int adPicW = nt(adPicWidth);int width = dowManager().getDefaultDisplay().getWidth(); int height = width * adPicH / adPicW; Params para = outParams(); = height; outParams(para); LogUtils.e(TAG , "============拿到的app_arc_pic==========" +app_arc_pic); iThread(new Runnable() { @Override public void run() { (activity) .load(app_arc_pic) .placeholder(_message_tozhi_new) .error(_message_tozhi_new) .into(imageView); } });