Intent.putExtra("KEY_BOOLEAN_VALUE", true) Intent.putExtra("KEY_DOUBLE_VALUE", 40.5) To send primitive or String data from one Activity to another Activity: Intent intent = new Intent(FirstActivity.this, SecondActivity.class) boolean, byte, char, short, int, long, float and double ), string or user-defined objects, then we can send it as intent extras. For example, if the data is primitive type ( e.g. Basically, we can pass data depending on the data-types. The most common way to send data is using Intent. There are several ways to do it which is summarizing below: 1.
Activity to Activity, Activity to Fragment, Fragment to Fragment) can be various which is depending on the data-types.
In the Android projects, data-passing from here to there (e.g.
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