save file in external storage

1. 設定權限 in AndroidManifest.xml


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.passionbean.fitmi"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="17" />
 
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

    <application
        android:allowBackup="true"

2.  建立file


File albumDir = new File(
   Environment.getExternalStoragePublicDirectory(
       Environment.DIRECTORY_PICTURES
   ),
   "FitMi"
);


if(albumDir.exists() == false)
{
albumDir.mkdir();

}

File imageFile = new File(albumDir.getPath(), "test.jpg");