android-利用Animation制作的Menu

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最新推荐文章于 2025-07-26 16:22:22 发布

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分类专栏： Android开发文章标签： animation layout android button import menu

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本文介绍了一种使用Android Animation实现的菜单效果。点击按钮后，菜单会从屏幕上方滑动出现，并可通过自定义样式调整外观。文章提供了TranslateAnimation和ScaleAnimation的具体应用实例。

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利用Animation制作的Menu，点击button后，菜单慢慢的从上方展开来。,可以自定义菜单样式，效果很好。

这是源码。（右键取得图片地址下载，改名为rar即为源码项目）

package zhang.example;

import android.app.Activity; 
import android.os.Bundle;
import android.view.View; 
import android.view.View.OnClickListener;
import android.view.animation.Animation; 
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation; 
import android.widget.Button; 
import android.widget.LinearLayout; 
public class animationMenu extends Activity { /** Called when the activity is first created. */ //
	//TranslateAnimation showAction, hideAction; 
	private Animation showAction, hideAction; 
	LinearLayout menu; 
	Button button; 
	Button button02;
	boolean menuShowed;
	@Override public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState); 
		setContentView(R.layout.main); 
		menu = (LinearLayout) findViewById(R.id.menu); 
		button = (Button) findViewById(R.id.button); 
		button02 = (Button) findViewById(R.id.button02); 
		// 这里是TranslateAnimation动画 
		showAction = new TranslateAnimation(
				Animation.RELATIVE_TO_SELF,0.0f,
				Animation.RELATIVE_TO_SELF, 0.0f, 
				Animation.RELATIVE_TO_SELF, -1.0f, 
				Animation.RELATIVE_TO_SELF, 0.0f); 
		// 这里是ScaleAnimation动画 //
		showAction = new ScaleAnimation(
				1.0f,1.0f,0.0f,1.0f,Animation.RELATIVE_TO_SELF,0.0f, 
				Animation.RELATIVE_TO_SELF,0.0f); 
				showAction.setDuration(500); 
		// 这里是TranslateAnimation动画 
				hideAction = new TranslateAnimation(
						Animation.RELATIVE_TO_SELF, 0.0f, 
						Animation.RELATIVE_TO_SELF, 0.0f, 
						Animation.RELATIVE_TO_SELF, 0.0f, 
						Animation.RELATIVE_TO_SELF, -1.0f);
	

// 这里是ScaleAnimation动画 
hideAction = new ScaleAnimation(1.0f,1.0f,1.0f,0.0f,
		Animation.RELATIVE_TO_SELF, 0.0f,
		Animation.RELATIVE_TO_SELF, 0.0f); 
hideAction.setDuration(500); 
menuShowed = false; 
menu.setVisibility(View.GONE); 

button.setOnClickListener(new OnClickListener() { 
	@Override public void onClick(View v) {
		// TODO Auto-generated method stub 
		if (menuShowed) { 
			menuShowed = false; 
		menu.startAnimation(hideAction);
		menu.setVisibility(View.GONE); 


		}
		else 
		{ 
			menuShowed = true; 
			menu.startAnimation(showAction); 
			menu.setVisibility(View.VISIBLE); 

			} 
		} 
	}); 
} 

	}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical" android:layout_width="fill_parent"
	android:layout_height="fill_parent">
	<TextView android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:text="@string/hello" />
	<LinearLayout android:id="@+id/menu"
		android:layout_height="100px" android:layout_width="fill_parent"
		android:layout_alignParentTop="true" android:background="#ffffff">
		<TextView android:layout_width="wrap_content"
			android:layout_height="wrap_content" android:text="I am a menu"
			android:gravity="center" />
			<Button
				android:text="@+id/button02"
				android:layout_width="match_parent"
				android:layout_height="match_parent"
				/>
	</LinearLayout>
	<Button android:id="@+id/button" android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:layout_alignParentBottom="true"
		android:text="Click to show/hide menu" />
</RelativeLayout>