HorizontalScrollView实现Gallery

最新推荐文章于 2025-08-18 19:35:30 发布

iteye_4476

最新推荐文章于 2025-08-18 19:35:30 发布

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文章标签：移动开发 java

本文介绍了如何通过继承LinearLayout并在其上布局多个视图来实现左右滚动的效果，具体包括主界面Activity的创建、MovieLayout的定义及其适配器的实现，并展示了如何在布局中添加点击事件。

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从简便的方式，继承LinearLayout再布局了添加视图，使其左右滚动。

主界面Activity:

package com.xmz.activity; import java.util.HashMap; import java.util.Map; import android.app.Activity; import android.os.Bundle; public class MainActivity extends Activity { private MovieLayout movieLayout; private MovieAdapter adapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); movieLayout=(MovieLayout)findViewById(R.id.movieLayout); adapter=new MovieAdapter(this); for(int i=0;i<10;i++){ Map<String,Object> map=new HashMap<String,Object>(); map.put("image", getResources().getDrawable(R.drawable.image)); map.put("text", "电影"+(i+1)); adapter.addObject(map); } movieLayout.setAdapter(adapter); } }

显示一连串视图的MovieLayout:

package com.xmz.activity; import java.util.Map; import android.content.Context; import android.util.AttributeSet; import android.view.View; import android.widget.LinearLayout; import android.widget.LinearLayout.LayoutParams; import android.widget.Toast; public class MovieLayout extends LinearLayout { private MovieAdapter adapter; private Context context; public MovieLayout(Context context, AttributeSet attrs) { super(context, attrs); this.context=context; } public void setAdapter(MovieAdapter adapter) { this.adapter = adapter; for(int i=0;i<adapter.getCount();i++){ final Map<String,Object> map=adapter.getItem(i); View view=adapter.getView(i, null, null); view.setPadding(10, 0, 10, 0); view.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(context, "您点击了"+map.get("text"), Toast.LENGTH_SHORT).show(); } }); this.setOrientation(HORIZONTAL); this.addView(view,new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)); } } }

贴出工程下载地址：http://download.youkuaiyun.com/source/3407806