直接上代码:
final String filePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/download"; final String fileName = "abc.apk"; File file = new File(filePath + "/" + fileName); if (file.exists()) file.delete(); OkGo.<File>get(url).execute(new FileCallback(filePath, fileName) { @Override public void onStart(Request<File, ? extends Request> request) { super.onStart(request); if (fullScreen) { coverMainImageView.setVisibility(View.VISIBLE); numberProgressBar.setVisibility(View.VISIBLE); } else { downloadProgress.show(); } } @Override public void onSuccess(Response<File> response) { } @Override public void onError(Response<File> response) { super.onError(response); if (fullScreen) { coverMainImageView.setVisibility(View.INVISIBLE); numberProgressBar.setVisibility(View.INVISIBLE); } else { downloadProgress.dismiss(); } } @Override public void downloadProgress(Progress progress) { super.downloadProgress(progress); int percentProgress = (int) (progress.fraction * 100); if (fullScreen) { numberProgressBar.setProgress(percentProgress); } else { downloadProgress.setProgress(percentProgress); } } @Override public void onFinish() { super.onFinish(); if (fullScreen) { coverMainImageView.setVisibility(View.INVISIBLE); numberProgressBar.setVisibility(View.INVISIBLE); } else { downloadProgress.dismiss(); } Intent intent = new Intent(Intent.ACTION_VIEW); File file = new File(filePath + "/" + fileName); Uri uri; intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { uri = FileProvider.getUriForFile(MainActivity.this, BuildConfig.APPLICATION_ID + ".MyFileProvider", file); intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); } else { uri = Uri.fromFile(file); } intent.setDataAndType(uri, "application/vnd.android.package-archive"); startActivity(intent); } }); } MyFileProvider.java //空实现 public class MyFileProvider extends FileProvider { }清单文件中
<provider android:name=".provider.MyFileProvider" android:authorities="com.theninepro.cn.thenineproject.MyFileProvider" android:exported="false" android:grantUriPermissions="true"> <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/file_paths" /> </provider>:file_paths.xml
<?xml version="1.0" encoding="utf-8"?> <paths> <external-path name="mydownload" path="/download"/> </paths>
