【发布时间】：2017-04-04 23:02:24
【问题描述】：
所以我在列表视图中设置了一个按钮，以便在选中/取消选中时将其选中状态保存在 sharedpreferences 中，然后当它加载视图时，它会根据它是保存为选中还是未选中自动设置检查状态，但有些似乎不检查自己或根本不切换。这是相当不一致的。
这是我的 ListViewAdapter
@NonNull
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View ListItem = convertView;
Holder holder;
if (ListItem == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
ListItem = inflater.inflate(layoutResourceId, parent, false);
holder = new Holder();
// holder.description = (TextView) ListItem.findViewById(R.id.deityDesc);
holder.banner = (ImageView) ListItem.findViewById(R.id.deityBanner);
holder.website = (Button) ListItem.findViewById(R.id.deityWebsite);
holder.active = (ToggleButton) ListItem.findViewById(R.id.isActiveButtonToggle);
// holder.background = (RelativeLayout) ListItem.findViewById(R.id.listItemBG);
holder.highlight = (ImageView) ListItem.findViewById(R.id.highlight);
// holder.highlight2 = (ImageView) ListItem.findViewById(R.id.highlight2);
holder.title = (TextView) ListItem.findViewById(R.id.titleText);
ListItem.setTag(holder);
} else {
holder = (Holder) ListItem.getTag();
}
final deities deity = data[position];
SharedPreferences sharedPref = ((Activity) context).getPreferences(Context.MODE_PRIVATE);
deity.active = sharedPref.getBoolean(Integer.toString(deity.id), false);
notifyDataSetChanged();
View.OnClickListener holderListener = new View.OnClickListener() {
public void onClick(View v) {
WebView webView = (WebView) ((Activity) context).findViewById(R.id.webView);
webView.setVisibility(View.VISIBLE);
webView.loadUrl(deity.url);
}
};
CompoundButton.OnCheckedChangeListener ToggleButtonListener = new CompoundButton.OnCheckedChangeListener() {
@NonNull
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// int position = (int) buttonView.getParent().getT();
// deities deity = data[position];
deity.active = isChecked;
SharedPreferences sharedPref = ((Activity) context).getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor prefeditor = sharedPref.edit();
TextView deityActiveCount = (TextView) ((Activity) context).findViewById(R.id.deitySelectedCounter);
final CompoundButton Button = buttonView;
final RelativeLayout r = (RelativeLayout) ((ViewGroup) Button.getParent()).getParent();
prefeditor.putBoolean(Integer.toString(deity.id), isChecked);
prefeditor.apply();
setCounter(isChecked ? getCounter() + 1 : getCounter() - 1);
ViewGroup ListItem = (ViewGroup) buttonView.getParent();
int startColor = isChecked ? Color.parseColor("#ce5a5a") : Color.parseColor("#2e7d32");
int endColor = isChecked ? Color.parseColor("#2e7d32") : Color.parseColor("#ce5a5a");
ValueAnimator colorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), startColor, endColor);
colorAnimation.setDuration(100);
colorAnimation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
ImageView sideThing1 = (ImageView) r.findViewById(R.id.highlight);
// ImageView sideThing2 = (ImageView) r.findViewById(R.id.highlight2);
sideThing1.setBackgroundColor((int) animation.getAnimatedValue());
// sideThing2.setBackgroundColor((int) animation.getAnimatedValue());
Button.setBackgroundColor((int) animation.getAnimatedValue());
}
});
colorAnimation.start();
notifyDataSetChanged();
}
};
if (deity.active) {
holder.active.setChecked(true);
holder.active.setBackgroundColor(Color.parseColor("#2e7d32"));
holder.highlight.setBackgroundColor(Color.parseColor("#2e7d32"));
// holder.highlight2.setBackgroundColor(Color.parseColor("#2e7d32"));
} else {
holder.active.setChecked(false);
holder.active.setBackgroundColor(Color.parseColor("#ce5a5a"));
holder.highlight.setBackgroundColor(Color.parseColor("#ce5a5a"));
// holder.highlight2.setBackgroundColor(Color.parseColor("#ce5a5a"));
}
holder.active.setOnCheckedChangeListener(ToggleButtonListener);
holder.website.setOnClickListener(holderListener);
holder.banner.setImageResource(deity.banner);
// holder.description.setText(deity.description);
holder.banner.setBackgroundColor(Color.parseColor("#616161"));
// holder.description.setText(deity.url);
holder.title.setText(deity.title + " " + deity.active);
return ListItem;
}
This is what I mean by inconsistent (click me, it's a video)
注意一些如何恢复/不保存？
一天过去了，我还是想不通。
【问题讨论】：
-
数据本身没有得到更新。你在哪里调用 notifyDataSetChanged()
-
我建议删除 OnCheckedChangeListener，使 CompoundButton 可点击为 false 并通过在列表上单击项目来处理它
-
天哪，这就是我所缺少的！谢谢。如果您将其发布为解决方案，我很乐意为您提供正确答案。