十八、动画-帧动画
一、帧动画
1.创建xml动态文件,我这里创建的是 frame.xml
2.使用 animation-list 将图片进行定位,并通过 android:duration 设置播放的时间
<?xml version="1.0" encoding="utf-8"?> <animation-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/pic1" android:duration="100"/> <item android:drawable="@drawable/pic2" android:duration="100"/> <item android:drawable="@drawable/pic3" android:duration="100"/> <item android:drawable="@drawable/pic4" android:duration="100"/> <item android:drawable="@drawable/pic5" android:duration="100"/> <item android:drawable="@drawable/pic6" android:duration="100"/> <item android:drawable="@drawable/pic7" android:duration="100"/> <item android:drawable="@drawable/pic8" android:duration="100"/> </animation-list>
3.创建主窗体页面
<?xml version="1.0" encoding="utf-8"?> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/linearlayout1" android:orientation="vertical" android:background="@drawable/frame" xmlns:android="http://schemas.android.com/apk/res/android"/>
4.动画的启动和停止
//获取动画的Drawable资源
AnimationDrawable anim = (AnimationDrawable)relativeLayout.getBackground();
//启动动画
anim.start();
//停止动画
anim.stop();
package com.example.myapplication; import androidx.appcompat.app.AppCompatActivity; import android.graphics.drawable.Animatable; import android.graphics.drawable.AnimationDrawable; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.view.View; import android.widget.LinearLayout; public class MainActivity extends AppCompatActivity { //标志位 private Boolean flag=true; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); LinearLayout ly= findViewById(R.id.linearlayout1); AnimationDrawable anim =(AnimationDrawable)ly.getBackground(); ly.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (flag){ anim.start(); flag=false; } else { anim.stop(); flag=true; } } }); } }
5.效果图