您好,登錄后才能下訂單哦!
如果想在ImageView中加載圖片時(shí)顯示加載進(jìn)度,可以使用ProgressDrawable來(lái)實(shí)現(xiàn)。ProgressDrawable是一個(gè)Drawable,它可以顯示加載進(jìn)度。以下是一個(gè)示例代碼:
首先,創(chuàng)建一個(gè)ProgressDrawable類(lèi)來(lái)實(shí)現(xiàn)加載進(jìn)度的顯示:
public class ProgressDrawable extends Drawable {
private Paint paint = new Paint();
private int progress = 0;
public ProgressDrawable() {
paint.setColor(Color.BLUE);
}
@Override
public void draw(@NonNull Canvas canvas) {
// 繪制進(jìn)度條
Rect bounds = getBounds();
int width = (int) (bounds.width() * progress / 100f);
canvas.drawRect(0, 0, width, bounds.height(), paint);
}
@Override
public void setAlpha(int alpha) {
paint.setAlpha(alpha);
}
@Override
public void setColorFilter(ColorFilter colorFilter) {
paint.setColorFilter(colorFilter);
}
@Override
public int getOpacity() {
return PixelFormat.OPAQUE;
}
public void setProgress(int progress) {
this.progress = progress;
invalidateSelf();
}
}
然后,在加載圖片時(shí),通過(guò)設(shè)置ImageView的drawable為ProgressDrawable,并在加載圖片時(shí)更新進(jìn)度:
ImageView imageView = findViewById(R.id.imageView);
ProgressDrawable progressDrawable = new ProgressDrawable();
imageView.setImageDrawable(progressDrawable);
Glide.with(context)
.load("your_image_url")
.listener(new RequestListener<Drawable>() {
@Override
public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
return false;
}
@Override
public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
// 圖片加載完成,設(shè)置進(jìn)度為100%
progressDrawable.setProgress(100);
return false;
}
})
.into(imageView);
這樣,在加載圖片時(shí),會(huì)在ImageView中顯示一個(gè)藍(lán)色的進(jìn)度條,隨著圖片加載進(jìn)度的增加而增長(zhǎng),直到圖片加載完成。
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如果涉及侵權(quán)請(qǐng)聯(lián)系站長(zhǎng)郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。