自定义两行可左右滑动的GridView

效果图：

xml:

 

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >



    <HorizontalScrollView

        android:id="@+id/scrollView"

        android:layout_width="match_parent"

        android:layout_height="match_parent" >



        <LinearLayout

            android:id="@+id/linearLayout1"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content" >



            <GridView

                android:id="@+id/gridView1"

                android:layout_width="match_parent"

                android:layout_height="match_parent" >

            </GridView>

        </LinearLayout>

    </HorizontalScrollView>



</LinearLayout>

Java:

 

public class MainActivity extends Activity {

	HorizontalScrollView horizontalScrollView;

	GridView gridView;

	DisplayMetrics dm;

	private int NUM = 4; // 每行显示个数

	private int hSpacing = 20;// 水平间距



	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.main);



		horizontalScrollView = (HorizontalScrollView) findViewById(R.id.scrollView);

		gridView = (GridView) findViewById(R.id.gridView1);



		horizontalScrollView.setHorizontalScrollBarEnabled(false);// 隐藏滚动条

		getScreenDen();

		setValue();

	}



	private void setValue() {

		MyGridViewAdapter adapter = new MyGridViewAdapter(this, 21);

		int count = adapter.getCount();

		int columns = (count % 2 == 0) ? count / 2 : count / 2 + 1;

		gridView.setAdapter(adapter);

		LayoutParams params = new LayoutParams(columns * dm.widthPixels / NUM,

				LayoutParams.WRAP_CONTENT);

		gridView.setLayoutParams(params);

		gridView.setColumnWidth(dm.widthPixels / NUM);

		// gridView.setHorizontalSpacing(hSpacing);

		gridView.setStretchMode(GridView.NO_STRETCH);

		if (count <= 3) {

			gridView.setNumColumns(count);

		} else {

			gridView.setNumColumns(columns);

		}

	}



	private void getScreenDen() {

		dm = new DisplayMetrics();

		getWindowManager().getDefaultDisplay().getMetrics(dm);

	}



	@Override

	public boolean onCreateOptionsMenu(Menu menu) {

		// Inflate the menu; this adds items to the action bar if it is present.

		getMenuInflater().inflate(R.menu.main, menu);

		return true;

	}



}

 

 

 

 

源码地址：点击这里