帧动画的实现

一.帧动画

1.首先drawable里面放上你的动画的每一帧（Easy GIF Animator可以吧gif图片分帧）

2. drawable下的资源文件 anim_gif.xml

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false">
    <!--oneshot 单次，false代表动画结束时开始循环-->
    <item
        android:drawable="@drawable/a0"
        android:duration="200" />
    <item
        android:drawable="@drawable/a1"
        android:duration="200" />
</animation-list>

3.布局文件activity_main.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:gravity="center"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/iv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/anim_gif" />

</LinearLayout>

4.MainActivity

package com.cwj.love;

import android.graphics.drawable.AnimationDrawable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    private ImageView iv;
    private AnimationDrawable anim;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toast.makeText(this, "别摸我，摸我我会心跳加速哦！", Toast.LENGTH_SHORT).show();
        iv = (ImageView) findViewById(R.id.iv);
        // 提取帧动画
        anim = (AnimationDrawable) iv.getBackground();

        iv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //开始动画
                anim.start();
                Toast.makeText(MainActivity.this, "哎呦，心跳加速了，我爱上你了！", Toast.LENGTH_SHORT).show();
            }
        });


    }
}