Question

I am following the tutorial here along with somebody’s help request here…

I am very new to Java/Android programming, and I’m not exactly sure how to ‘launch’ this section of code. In my AndroidManifest.xml I have it set as the first activity, assuming this would launch right when I started it:

    <activity
        android:name=".UploadImage"
        android:label="@string/title_activity_starting_point" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

Unfortunately it doesn’t work this way, because whenever I launch the app it automatically ‘stops unexpectedly.’ Any other Java class that I put right here launches fine, so I assumed it was something in the code. I’m just not sure where it needs to be for me to get the code ‘running’, as every time I compile it the program crashes on my phone.

LogCat says it is unable to resolve this line of code:

String image_str = Base64.encodeBase64String(byte_arr);
// old code was String image_str = Base64.encodeBytes(byte_arr), 
// but this didn't compile for me and a comment on another website 
// said that encodeBase64String could replace it...apparently not?

Answer 1

Apparently the Base64 file I had entered got modified from the original one; the ‘encodeBase64String’ doesn’t exist, and using:

int flag = 0;
String image_str = Base64.encodeToString(byte_arr, flag);

Fixed the problem.