安卓使用PhotoView进行对图片的双击放大,单击退出

实现思路

1.复制PhotoView  到libs下,然后进行添加小奶瓶
2.布局xml文件,添加PhotoView控件,src加载一张图片,就已经实现了放大缩小
3.Photoview设置点击事件,实现单击退出Activity

导jar包

compile files('libs/uk-co-senab-photoview.jar')

进行布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <uk.co.senab.photoview.PhotoView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/pv"
        android:src="@drawable/ic_emptya"/>
RelativeLayout>

在MainActivity中实现

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        PhotoView pv = (PhotoView) findViewById(R.id.pv);
        pv.setOnPhotoTapListener(new PhotoViewAttacher.OnPhotoTapListener() {
            @Override
            public void onPhotoTap(View view, float v, float v1) {
                finish();
            }
        });
    }
}