配置photoview-library-1.2.2.jar 到libs

photoview-library-1.2.2.jar 下載地址 ?http://pan.baidu.com/s/1nviEKtj

MainActivity

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import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL;import uk.co.senab.photoview.PhotoView; import android.annotation.SuppressLint; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.TextView; import android.widget.Toast;public class MainActivity extends Activity implements OnClickListener{private PhotoView mPhotoView;private String img;private Bitmap bitmap;/*** 默認文件保存路徑*/private static final String SAVE_PIC_PATH = Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED)? Environment.getExternalStorageDirectory().getAbsolutePath() : "/mnt/sdcard";//保存到SD卡private static final String SAVE_REAL_PATH = SAVE_PIC_PATH + "/good/savePic";//保存的確切位置@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);init();}@SuppressLint("HandlerLeak")private Handler handler = new Handler() {@Overridepublic void handleMessage(Message msg) {if (msg.what == 1) {mPhotoView.setImageBitmap(bitmap);}}};private void init() {mPhotoView = (PhotoView) findViewById(R.id.iv_photo); // img = getIntent().getStringExtra("image");img = "http://p1.pstatp.com/origin/9e000062f3b52ea52f4";TextView textView = (TextView)findViewById(R.id.textView1);textView.setOnClickListener(this);Log.v("lgq","圖片保持。。。。。。。。"+img);new Thread(runnable).start();}Runnable runnable = new Runnable() {@Overridepublic void run() {try {bitmap = ((BitmapDrawable) loadImageFromUrl(img)).getBitmap();Message msg = new Message();msg.what = 1;handler.sendMessage(msg);} catch (IOException e) {e.printStackTrace();}}};private static Drawable loadImageFromUrl(String url) throws IOException {URL m = new URL(url);InputStream i = (InputStream) m.getContent();return Drawable.createFromStream(i, "src");}//保存方法private void saveFile(Bitmap bm, String fileName) throws IOException {String subForder = SAVE_REAL_PATH;File foder = new File(subForder);if (!foder.exists()) foder.mkdirs();File myCaptureFile = new File(subForder, fileName);Log.v("lgq","圖片保持。。。。。。。。"+myCaptureFile);Log.v("lgq","圖片保持。。。。。getPath。。。"+myCaptureFile.getPath());if (!myCaptureFile.exists()) myCaptureFile.createNewFile();BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));bm.compress(Bitmap.CompressFormat.JPEG, 100, bos);bos.flush();bos.close(); // Toast.bottomToast("已保存在/good/savePic目錄下", PhotoScanActivity.this);//發送廣播通知系統Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);Uri uri = Uri.fromFile(myCaptureFile);intent.setData(uri);this.sendBroadcast(intent);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.textView1:try {saveFile(bitmap, System.currentTimeMillis() + ".jpg");} catch (IOException e) {e.printStackTrace();}break;default:break;}}}

添加權限

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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/> <uses-permission android:name="android.permission.INTERNET" />

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activity_main.xml

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<?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:background="#00050B"android:orientation="vertical"><LinearLayoutandroid:layout_height="45dp"android:layout_width="fill_parent"android:gravity="center"android:orientation="horizontal"><TextViewandroid:id="@+id/textView1"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="保存" /></LinearLayout><uk.co.senab.photoview.PhotoViewandroid:id="@+id/iv_photo"android:layout_width="fill_parent"android:layout_height="fill_parent" /></LinearLayout>

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改進版：https://blog.csdn.net/meixi_android/article/details/82801273

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