Android动画之逐帧动画(FrameAnimation)基础学习

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package com.lyp.frameanim;

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

public class MainActivity extends AppCompatActivity implements View.OnClickListener{
 private Button mBtnStart;
 private Button mBtnStop;
 private ImageView mImage;
 private AnimationDrawable mAnim;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

// new AnimationDrawable().addFrame(getDrawable(R.drawable.a),200);

 initView();
 mAnim = (AnimationDrawable) mImage.getBackground();
 }

 private void initView() {
 mBtnStart= (Button) findViewById(R.id.btn_start);
 mBtnStop= (Button) findViewById(R.id.btn_stop);
 mImage= (ImageView) findViewById(R.id.image);

 mBtnStart.setOnClickListener(this);
 mBtnStop.setOnClickListener(this);
 }

 @Override
 public void onClick(View v) {
 switch (v.getId()){
  case R.id.btn_start:
  mAnim.start();
  break;
  case R.id.btn_stop:
  mAnim.stop();
  break;
 }
 }
}