1 --Android 7.0，8.0手机相机权限没有直接崩溃，*切记动态检查权限
public void request(){ if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED){ ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, 1); return; } }--权限申请结果查看
@Override public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults){ switch (requestCode){ case 1: if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){ getPicFromCamera(); }else{ Toast.makeText(this, "没有相机权限！\n请接收权限申请或前往设置添加权限！", Toast.LENGTH_SHORT).show(); } break; default: } }**** 7.0，8.0 打开相机
---1清单文件配置provide 与activity同级
<?xml version="1.0" encoding="utf-8"?> <paths> <external-path name="rc_external_path" path="."/> </paths><provider android:name="android.support.v4.content.FileProvider" android:authorities="com.zjxnkj.countrysidecommunity.FileProvider" android:exported="false" android:grantUriPermissions="true" tools:replace="android:authorities"> <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/rc_file_path" tools:replace="android:resource" /> </provider>
--2 代码区别
private File createImageFile() throws IOException { // Create an image file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.ENGLISH).format(new Date()); String imageFileName = "JPEG_" + timeStamp + ".jpg"; File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); if (!storageDir.exists()) { if (!storageDir.mkdir()) { Log.e("TAG", "Throwing Errors...."); throw new IOException(); } } File image = new File(storageDir, imageFileName); return image; } /** * 从相机获取图片 */ private void getPicFromCamera() { if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED){ ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, 1); return; } //跳转到调用系统相机 Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); //用于保存调用相机拍照后所生成的文件// new File(Environment.getExternalStorageDirectory().getPath(), System.currentTimeMillis() + ".jpg"); try { tempFile =createImageFile(); } catch (IOException e) { e.printStackTrace(); } // Ensure that there's a camera activity to handle the intent if (intent.resolveActivity(getPackageManager()) != null) { Uri photoFile; if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { String authority = "com.zjxnkj.countrysidecommunity.FileProvider"; photoFile = FileProvider.getUriForFile(getApplicationContext(), authority, tempFile); } else { photoFile = Uri.fromFile(tempFile); } // Continue only if the File was successfully created if (photoFile != null) { intent.putExtra(MediaStore.EXTRA_OUTPUT, photoFile); } } PackageManager packageManager = getPackageManager(); if (packageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA)) { startActivityForResult(intent, CAMERA_REQUEST_CODE); }else { ToastUtils.showToast(getApplicationContext(),"请打开相机权限"); } }2 Android8.0需要申请安装应用权限 读取sd卡和安装应用
public void request(){ if (Build.VERSION.SDK_INT >= 26) { boolean b = getPackageManager().canRequestPackageInstalls(); if (b) { String[] perms = {android.Manifest.permission.WRITE_EXTERNAL_STORAGE, android .Manifest.permission.READ_EXTERNAL_STORAGE}; // String[] perms = {android.Manifest.permission.CAMERA, android.Manifest.permission.ACCESS_FINE_LOCATION}; requestPermissions(perms,"请求访问SD卡"); // mMainPresenter.installApk(); } else { //请求安装未知应用来源的权限 String[] perms = {android.Manifest.permission.WRITE_EXTERNAL_STORAGE, android .Manifest.permission.READ_EXTERNAL_STORAGE,android.Manifest.permission.REQUEST_INSTALL_PACKAGES}; // String[] perms = {android.Manifest.permission.CAMERA, android.Manifest.permission.ACCESS_FINE_LOCATION}; requestPermissions(perms,"请求访问SD卡,安装应用"); } } else { String[] perms = {android.Manifest.permission.WRITE_EXTERNAL_STORAGE, android .Manifest.permission.READ_EXTERNAL_STORAGE}; // String[] perms = {android.Manifest.permission.CAMERA, android.Manifest.permission.ACCESS_FINE_LOCATION}; requestPermissions(perms,"请求访问SD卡"); } }---结果重写 onPermissionsGranted
@Override public void onPermissionsGranted(int requestCode, List<String> perms) { updateManager.installApk(); } @Override public void onPermissionsDenied(int requestCode, List<String> perms) { if (perms.size() > 0 && Manifest.permission.REQUEST_INSTALL_PACKAGES.equals(perms.get(0))) { // 引导用户手动开启安装权限 ToastUtils.showToast(getApplicationContext(), "申请安装应用权限失败，\n请选择村知书打开安装权限", Toast.LENGTH_LONG); Intent intent = new Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES); startActivityForResult(intent, GET_UNKNOWN_APP_SOURCES); } else { requestPermissions(); } }
