android 调用系统录像功能 怎样限制录像的时间和录像文件大小

你出现ActivityNotFoundException错误是因为Zxing应用没有在你的设备上安装所以,请检查是否安装如果没有,可以将你的用户重定向到Goolge Play的Zxing页下面这些代码可以帮你: boolean isZxingInstalled; / Checking whether Zxing is installed or not / try { ApplicationInfo info = getPackageManager()getApplicationInfo("comgooglezxingclientandroid", 0 ); boolean isZxingInstalled = true; } catch(PackageManagerNameNotFoundException e){ isZxingInstalled=false; } / Store the boolean value on the basis of Zxing is installed or not / if(isZxingInstalled) //If it is then intent Zxing application { //start the facebook app Intent intent = new Intent("comgooglezxingclientandroidSCAN"); intentsetPackage("comgooglezxingclientandroid"); intentputExtra("SCAN_MODE", "PRODUCT_MODE"); intentputExtra("SCAN_FORMATS", "CODE_三9,CODE_9三,CODE_依贰吧,DATA_MATRIX,ITF,CODABAR,EAN_依三,EAN_吧,UPC_A,QR_CODE"); startActivityForResult(intent, 0); } else //It's not then redirect user to PlayStore-ZxingPlage { / Checking whether PlayStore is installed in device or not / boolean isPlayStoreInstalled try { ApplicationInfo i=getPackageManager()getApplicationInfo("comgooglevending", 0 ); boolean isPlayStoreInstalled = true; } catch(PackageManagerNameNotFoundException e){ isPlayStoreInstalled=false; } / If it is the download Zxing / if(isPlayStoreInstalled) { Intent DownloadZxing = new Intent(IntentACTION_VIEW,Uriparse("market://detailsid=comgooglezxingclientandroid")); startActivity(DownloadZxing); } else //Toast message indicating No PlayStore Found { ToastmakeText(this,"Install PlayStore First",ToastLENGHT_SHORT)show(); }

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1 使用浏览器浏览网页

//web浏览器 

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