Android开发之5.0activity跳转时共享元素的使用方法

 @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    iv= (ImageView) findViewById(R.id.item_image);
  }
  public void click(View view)
  {
    if (android.os.Build.VERSION.SDK_INT > 20) {
      intent = new Intent(this,HomeActivity.class);
      startActivity(intent, ActivityOptions.makeSceneTransitionAnimation(MainActivity.this, iv, "transitionImg").toBundle());
    } else {
      startActivity(intent);
    }
  }