package com.asteroid.han.pdfview; import android.app.ProgressDialog; import android.content.Intent; import android.content.pm.PackageManager; import android.graphics.Canvas; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.view.View; import android.widget.TextView; import android.widget.Toast; import com.github.barteksc.pdfviewer.PDFView; import com.github.barteksc.pdfviewer.listener.OnDrawListener; import com.github.barteksc.pdfviewer.listener.OnErrorListener; import com.github.barteksc.pdfviewer.listener.OnLoadCompleteListener; import com.github.barteksc.pdfviewer.listener.OnPageChangeListener; import com.github.barteksc.pdfviewer.listener.OnPageScrollListener; import com.lzy.okgo.OkGo; import com.lzy.okgo.cache.CacheEntity; import com.lzy.okgo.cache.CacheMode; import com.lzy.okgo.callback.FileCallback; import com.lzy.okgo.cookie.store.PersistentCookieStore; import java.io.File; import java.util.logging.Level; import okhttp3.Call; import okhttp3.Response; public class PdfViewActivity extends AppCompatActivity implements OnDrawListener, OnLoadCompleteListener, OnPageChangeListener, OnPageScrollListener, OnErrorListener { private PDFView pdfView; private String pdfPath = "http://fupingzhou.firstp2plocal.com:8104/api/file/show?path=g1/M00/7A/87/ChRFCVjI-W-APm_hAAHqoyXcxoY2103312"; private final static int REQUEST_CODE = 42; public static final int PERMISSION_CODE = 42042; public static final String READ_EXTERNAL_STORAGE = "android.permission.READ_EXTERNAL_STORAGE"; public static final String WRITE_EXTERNAL_STORAGE = "android.permission.WRITE_EXTERNAL_STORAGE"; private ProgressDialog progressDialog; private String url; private String filename; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_pdfview); findViewById(R.id.back_icon).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { finish(); } }); //必须调用初始化 OkGo.init(getApplication()); //以下设置的所有参数是全局参数,同样的参数可以在请求的时候再设置一遍,那么对于该请求来讲,请求中的参数会覆盖全局参数 //好处是全局参数统一,特定请求可以特别定制参数 try { //以下都不是必须的，根据需要自行选择,一般来说只需要 debug,缓存相关,cookie相关的 就可以了 OkGo.getInstance() // 打开该调试开关,打印级别INFO,并不是异常,是为了显眼,不需要就不要加入该行 // 最后的true表示是否打印okgo的内部异常，一般打开方便调试错误 .debug("OkGo", Level.INFO, true) //如果使用默认的 60秒,以下三行也不需要传 .setConnectTimeout(10000) //全局的连接超时时间 .setReadTimeOut(100000) //全局的读取超时时间 .setWriteTimeOut(10000) //全局的写入超时时间 //可以全局统一设置缓存模式,默认是不使用缓存,可以不传,具体其他模式看 github 介绍 https://github.com/jeasonlzy/ .setCacheMode(CacheMode.NO_CACHE) //可以全局统一设置缓存时间,默认永不过期,具体使用方法看 github 介绍 .setCacheTime(CacheEntity.CACHE_NEVER_EXPIRE) //可以全局统一设置超时重连次数,默认为三次,那么最差的情况会请求4次(一次原始请求,三次重连请求),不需要可以设置为0 .setRetryCount(3) //如果不想让框架管理cookie（或者叫session的保持）,以下不需要 // .setCookieStore(new MemoryCookieStore()) //cookie使用内存缓存（app退出后，cookie消失） .setCookieStore(new PersistentCookieStore()) //cookie持久化存储，如果cookie不过期，则一直有效 //可以设置https的证书,以下几种方案根据需要自己设置 .setCertificates(); //方法一：信任所有证书,不安全有风险 } catch (Exception e) { e.printStackTrace(); } progressDialog = new ProgressDialog(this); pdfView = ((PDFView) findViewById(R.id.pdfView)); Intent intent = getIntent(); url = intent.getStringExtra("URL"); filename = intent.getStringExtra("FILENAME"); ((TextView) findViewById(R.id.toolbar_title)).setText(filename.replace(".pdf","")); if (checkPermissions()) { try { downLoadFile(url, filename); }catch (Exception e){ e.printStackTrace(); progressDialog.dismiss(); Toast.makeText(this, "文件错误", Toast.LENGTH_SHORT).show(); finish(); } } // showFile(new File("/storage/emulated/0/show.pdf")); } private boolean checkPermissions() { int permissionCheck1 = ContextCompat.checkSelfPermission(this, READ_EXTERNAL_STORAGE); int permissionCheck2 = ContextCompat.checkSelfPermission(this, WRITE_EXTERNAL_STORAGE); if (permissionCheck1 != PackageManager.PERMISSION_GRANTED && permissionCheck2 != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions( this, new String[]{READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE}, PERMISSION_CODE ); return false; } return true; } private void showFile(File file) { pdfView.fromFile(file) // .pages(0) // all pages are displayed by default .enableSwipe(true) .swipeHorizontal(false) .enableDoubletap(true) .defaultPage(0) .onDraw(this) .onLoad(this) .onPageChange(this) .onPageScroll(this) .onError(this) .enableAnnotationRendering(false) .password(null) .scrollHandle(null) .load(); } private void downLoadFile(String url,String filename) throws IllegalArgumentException{ // progressDialog.setMessage("下载中..."); progressDialog = progressDialog.show(this,"提示","下载中...",true,false); OkGo.get(url)// .tag(this)// .execute(new FileCallback(filename) { //文件下载时，可以指定下载的文件目录和文件名 @Override public void onSuccess(File file, Call call, Response response) { // file 即为文件数据，文件保存在指定目录 // Toast.makeText(MainActivity.this, "下载完毕", Toast.LENGTH_SHORT).show(); progressDialog.dismiss(); Log.i("TAG", file.getAbsolutePath()); showFile(file); } @Override public void downloadProgress(long currentSize, long totalSize, float progress, long networkSpeed) { //这里回调下载进度(该回调在主线程,可以直接更新ui) Log.i("进度————————————", currentSize + ""); } @Override public void onError(Call call, Response response, Exception e) { super.onError(call, response, e); e.printStackTrace(); progressDialog.dismiss(); Toast.makeText(PdfViewActivity.this, "下载失败", Toast.LENGTH_SHORT).show(); finish(); } }); } @Override public void onLayerDrawn(Canvas canvas, float pageWidth, float pageHeight, int displayedPage) { } @Override public void loadComplete(int nbPages) { } @Override public void onPageChanged(int page, int pageCount) { } @Override public void onPageScrolled(int page, float positionOffset) { } @Override public void onError(Throwable t) { } /** * Listener for response to user permission request * * @param requestCode Check that permission request code matches * @param permissions Permissions that requested * @param grantResults Whether permissions granted */ @Override public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) { if (requestCode == PERMISSION_CODE) { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { downLoadFile(url,filename); } } } }