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                        /Android攝像頭基礎(chǔ)

uri 那部分在安卓7以后有權(quán)限風(fēng)險(xiǎn)，不能通過(guò)。用fileprovider 后，相機(jī)2拍照后顯示圖片報(bào)錯(cuò)找不到文件或文件夾W/System.err: java.io.FileNotFoundException: /storage/emulated/0/temp.jpg: open failed: ENOENT (No such file or directory)

????public?void?startCamera2(View?view){
????????Intent?intent=new?Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//????????Uri?photoUri?=?Uri.fromFile(new?File(mFilePath));//顯示的路徑有權(quán)限風(fēng)險(xiǎn)
????????photoUri?=?FileProvider.getUriForFile(
????????????????this,
????????????????getPackageName()?+?".provider",
????????????????new?File(mFilePath));
????????intent.putExtra(MediaStore.EXTRA_OUTPUT,photoUri);?//更改照片存儲(chǔ)路徑到photoUri
????????startActivityForResult(intent,REQ_2);???//打開(kāi)相機(jī)拍照，返回相機(jī)結(jié)果（照片）并回到原界面
????}
????//onActivityResult部分代碼
????else?if(requestCode?==?REQ_2){
????????????????FileInputStream?fis?=?null;
????????????????try?{
????????????????????fis?=?new?FileInputStream(new?File(mFilePath));
????????????????????Bitmap?bitmap?=?BitmapFactory.decodeStream(fis);??//涉及寫(xiě)入內(nèi)存卡權(quán)限，在manifest里面配置

//????????????????????Bitmap?bitmap?=?BitmapFactory.decodeStream(getContentResolver().openInputStream(photoUri));
????????????????????mImageView.setImageBitmap(bitmap);???????????//從內(nèi)存讀取原圖