在Android GridView中添加进度条可以通过自定义Adapter来实现。以下是一个简单示例:
首先,创建一个自定义的Adapter类,继承自BaseAdapter:
public class CustomAdapter extends BaseAdapter { private Context mContext; private ListmData; private LayoutInflater mInflater; public CustomAdapter(Context context, List data) { mContext = context; mData = https://www.yisu.com/ask/data;"hljs">int position) { return mData.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder viewHolder; if (convertView == null) { convertView = mInflater.inflate(R.layout.grid_item, parent, false); viewHolder = new ViewHolder(); viewHolder.progressBar = convertView.findViewById(R.id.progress_bar); convertView.setTag(viewHolder); } else { viewHolder = (ViewHolder) convertView.getTag(); } // 设置进度条的进度 viewHolder.progressBar.setProgress(mData.get(position).getProgress()); return convertView; } private static class ViewHolder { ProgressBar progressBar; } }
然后,在grid_item.xml布局文件中添加一个进度条:
最后,在Activity中使用GridView并设置Adapter:
public class MainActivity extends AppCompatActivity { private GridView mGridView; private CustomAdapter mAdapter; private ListmData = https://www.yisu.com/ask/new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // 初始化数据 for (int i = 0; i < 10; i++) { mData.add(new ProgressItem(i * 10)); // 这里的ProgressItem是一个自定义的类,用于表示每个GridView项的进度值 } // 初始化GridView和Adapter mGridView = findViewById(R.id.grid_view); mAdapter = new CustomAdapter(this, mData); mGridView.setAdapter(mAdapter); } }
注意,你需要根据自己的需求修改和完善代码。这只是一个简单的示例,你可能需要根据实际情况进行适当的修改和调整。