Android RecyclerView DividerItemDecoration使用Drawable

落日映苍穹つ 2023-10-18 12:41 51阅读 0赞

package zhangphil.book;
    
    import android.graphics.drawable.Drawable;
    import android.os.Bundle;
    import android.support.annotation.NonNull;
    import android.support.v4.content.ContextCompat;
    import android.support.v7.app.AppCompatActivity;
    import android.support.v7.widget.DividerItemDecoration;
    import android.support.v7.widget.LinearLayoutManager;
    import android.support.v7.widget.RecyclerView;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.TextView;
    
    public class MainActivity extends AppCompatActivity {
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            RecyclerView mRecyclerView = findViewById(R.id.recycler_view);
    
            LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getApplicationContext());
            linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
            mRecyclerView.setLayoutManager(linearLayoutManager);
    
            RecyclerViewAdapter adapter = new RecyclerViewAdapter();
            mRecyclerView.setAdapter(adapter);
    
            DividerItemDecoration mDividerItemDecoration = new DividerItemDecoration(getApplicationContext(), DividerItemDecoration.VERTICAL);
            Drawable mDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.yellow);
            mDividerItemDecoration.setDrawable(mDrawable);
    
            mRecyclerView.addItemDecoration(mDividerItemDecoration);
        }
    
        private class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewHolder> {
            @NonNull
            @Override
            public RecyclerViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
                View view = LayoutInflater.from(getApplicationContext()).inflate(android.R.layout.simple_list_item_1, parent, false);
                RecyclerViewHolder holder = new RecyclerViewHolder(view);
                return holder;
            }
    
            @Override
            public void onBindViewHolder(@NonNull RecyclerViewHolder holder, int position) {
                holder.text1.setText(position + "");
            }
    
            @Override
            public int getItemCount() {
                return Integer.MAX_VALUE;
            }
        }
    
        private class RecyclerViewHolder extends RecyclerView.ViewHolder {
            public TextView text1;
    
            public RecyclerViewHolder(View itemView) {
                super(itemView);
                text1 = itemView.findViewById(android.R.id.text1);
            }
        }
    }

res/drawable/yellow.xml：

<?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">
    
        <size android:height="50dp" />
    
        <corners android:radius="5dp" />
    
        <gradient
            android:angle="0"
            android:endColor="#FFDC9E "
            android:startColor="#D9983B"
            android:type="linear" />
    </shape>

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5ncGhpbA_size_16_color_FFFFFF_t_70][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5ncGhpbA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20181214160746460.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5ncGhpbA==,size_16,color_FFFFFF,t_70