如何以编程方式填充AndroidManifest元数据值？

Question

I understand the AndroidManifest.xml is prepared at compile time and not runtime , is there any other way to populate metadata in the manifest without relying on hard coded strings? Maybe populating it somehow at compile time?

I currently have the following on my AndroidManifest.xml

<application
    android:allowBackup="true"
    android:icon="@drawable/dt_icon"
    android:label="@string/app_name"
    android:theme="@style/AppTheme">

    <meta-data
        android:name="DataPath"
        android:value=""
     /> ...

I don't want to hard code the value and instead populate it somehow with the results from:

Environment.getExternalStorageDirectory()

Another application will later retrieve the value of DataPath by utilizing the ApplicationInfo 's metaData property.

Answer 1

I believe i read somewhere that its possible to assign the value at compile time but still not hard coding it

The best you can do is to assign a value from gradle via manifest placeholders .

Example:

android {
    defaultConfig {
        manifestPlaceholders = [hostName:"www.example.com"]
    }
    ...
}

<intent-filter ... >
    <data android:scheme="http" android:host="${hostName}" ... />
    ...
</intent-filter>