Android ListView background colors always showing grey

老子叫甜甜 提交于 2019-12-19 00:25:12

问题


I have a ListView that I'm populating from a custom ListAdapter. Inside the Adapter (in the getView(int, View, ViewGroup) method) I'm setting the background color of the View using setBackgroundColor(int). The problem is that no matter what color I set the background to it always comes out a dark grey. It might also be worth noting that I'm using the Light theme.

Relevant (simplified) bits of code:

AndroidManifest.xml:

<activity 
    android:name=".MyActivity"
    android:theme="@android:style/Theme.Light" />

MyAdapter.java:

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    LayoutInflater inflater = LayoutInflater.from(mContext);
    View av = inflater.inflate(R.layout.my_row, parent, false);
    av.setBackgroundColor(R.color.myRow_red);
    mName = (TextView) av.findViewById(R.id.myRow_name);
    mName.setText("This is a name");
    return av;
}

Any ideas/suggestions?


回答1:


You should use: setBackgroundResource(R.color.myRow_red) instead of setBackgroundColor(). In your example background color is assigned with the ID instead of the actual color described in the resources.




回答2:


You must set the cacheColorHint attribute to the desired background color for your list. This is a required workaround to account for a drawing optimization Android performs on lists.

See here: link text




回答3:


I ran into a similar problem where the divider was coming up grey. I found that the other solutions had no effect, but android:divider="<drawable,color, or whatever>" on my ListView worked.




回答4:


You cold always wrap the whole row inside another view and set the background color on that view. This view would be the first (and only) child of the row.




回答5:


Try to do like this:

av.setBackgroundColor(getResources().getColor(R.color.myRow_red));




回答6:


try this:

setBackgroundColor(0xFF5DB9FB);


来源:https://stackoverflow.com/questions/1397183/android-listview-background-colors-always-showing-grey

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