1.采用ViewHolder并避免在getView中執(zhí)行耗時(shí)操作

@Override

public View getView(int position, View convertView, ViewGroup parent) {

ViewHolder holder = null;

if (convertView == null) {

convertView = mInflater.inflate(R.layout.image_list_item,parent, false);

holder = new ViewHolder();

holder.imageView = (ImageView) convertView.findViewById(R.id.image);

convertView.setTag(holder);

} else {

holder = (ViewHolder) convertView.getTag();

}

ImageView imageView = holder.imageView;

final String tag = (String)imageView.getTag();

final String uri = getItem(position);

if (!uri.equals(tag)) {

imageView.setImageDrawable(mDefaultBitmapDrawable);

}

if (mIsGridViewIdle && mCanGetBitmapFromNetWork) {

imageView.setTag(uri);

mImageLoader.bindBitmap(uri, imageView, mImageWidth, mImageWidth);

}

return convertView;

}

}

private static class ViewHolder {

public ImageView imageView;

}

2.根據(jù)列表的滑動(dòng)狀態(tài)來(lái)控制任務(wù)的執(zhí)行頻率

監(jiān)聽(tīng)滑動(dòng)狀態(tài)，當(dāng)滑動(dòng)停止的時(shí)候再去加載圖片

@Override

public void onScrollStateChanged(AbsListView view, int scrollState) {

if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {

mIsGridViewIdle = true;

mImageAdapter.notifyDataSetChanged();

} else {

mIsGridViewIdle = false;

}

}

3.嘗試硬件加速來(lái)使ListView滑動(dòng)更加流暢

android:hardwareAccelerated=”true”

總結(jié)

以上是生活随笔為你收集整理的android listview 优化,Android ListView、GridView等性能优化的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。