Android第三方控件PhotoView使用方法详解

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 xmlns:tools="http://schemas.android.com/tools" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 tools:context=".MainActivity" 
 android:orientation="vertical" 
 > 
 
 <uk.co.senab.photoview.PhotoView 
 android:id="@+id/iv_photo1" 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 
 /> 
 <uk.co.senab.photoview.PhotoView 
 android:id="@+id/iv_photo2" 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 
 /> 
 
</LinearLayout> 

public class MainActivity extends Activity { 
 private PhotoView iv_photo1; 
 private PhotoView iv_photo2; 
 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_main); 
 iv_photo1 = (PhotoView) findViewById(R.id.iv_photo1); 
 iv_photo2 = (PhotoView) findViewById(R.id.iv_photo2); 
// localImage(); 
 netImage(); 
 
 } 
 
/** 
 * 加载本地图片 
 * 
 */ 
 private void localImage() { 
// 加载本地图片，缩放处理 
 try { 
// 图片在asset目录中 
 InputStream is = getAssets().open("photo2.jpg"); 
 Bitmap bm = BitmapFactory.decodeStream(is); 
 iv_photo1.setImageBitmap(bm); 
 } catch (IOException e) { 
 e.printStackTrace(); 
 } 
 
 } 
 /** 
 * 加载网络图片 
 */ 
 private void netImage() { 
 ImageLoader loader = ImageLoader.getInstance(); 
 loader.displayImage("https://www.baidu.com/img/bdlogo.png", iv_photo2); 
 iv_photo2.setOnPhotoTapListener(new OnPhotoTapListener() { 
 
 @Override 
 public void onPhotoTap(View arg0, float arg1, float arg2) { 
 Toast.makeText(MainActivity.this, "图片被点击了", 10).show(); 
 } 
 }); 
 
 } 
 
 
 
} 

/** 
 * 加载网络图片时，需要对ImageLoader进行全局配置 
 * 
 */ 
 
public class BaseApplication extends Application { 
 
 @Override 
 public void onCreate() { 
 super.onCreate(); 
 initImagloader(getApplicationContext()); 
 } 
 
 private void initImagloader(Context context) { 
 File cacheDir = StorageUtils.getOwnCacheDirectory(context, 
 "photoview/Cache");// 获取到缓存的目录地址 
 // 创建配置ImageLoader(所有的选项都是可选的,只使用那些你真的想定制)，这个可以设定在APPLACATION里面，设置为全局的配置参数 
 ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder( 
 context) 
 // 线程池内加载的数量 
 .threadPoolSize(3).threadPriority(Thread.NORM_PRIORITY - 2) 
 .memoryCache(new WeakMemoryCache()) 
 .denyCacheImageMultipleSizesInMemory() 
 .discCacheFileNameGenerator(new Md5FileNameGenerator()) 
 // 将保存的时候的URI名称用MD5 加密 
 .tasksProcessingOrder(QueueProcessingType.LIFO) 
 .discCache(new UnlimitedDiscCache(cacheDir))// 自定义缓存路径 
 // .defaultDisplayImageOptions(DisplayImageOptions.createSimple()) 
 .writeDebugLogs() // Remove for release app 
 .build(); 
 // Initialize ImageLoader with configuration. 
 ImageLoader.getInstance().init(config);// 全局初始化此配置 
 } 
} 

<uses-permission android:name="android.permission.INTERNET"/> 
 <application 
 android:name="com.zhhandroid.BaseApplication" 
 android:allowBackup="true" 
 android:icon="@drawable/ic_launcher" 
 android:label="@string/app_name" 
 android:theme="@style/AppTheme" > 
 <activity 
 android:name=".MainActivity" 
 android:label="@string/app_name" > 
 <intent-filter> 
 <action android:name="android.intent.action.MAIN" /> 
 
 <category android:name="android.intent.category.LAUNCHER" /> 
 </intent-filter> 
 </activity> 
 </application>