Programmatically Create Styles In Android Without Referring To Resources

I'm working on an app that reads in text from an XML document and then displays that text on the screen. I want to be able to create a TextAppearanceSpan object programmatically ba

Solution 1:

You can look at the source code for ColorStateList here:

GrepCode: ColorStateList

For example, the following XML selector:

<selectorxmlns:android="http://schemas.android.com/apk/res/android"><itemandroid:state_focused="true"android:color="@color/testcolor1"/><itemandroid:state_pressed="true"android:state_enabled="false"android:color="@color/testcolor2" /><itemandroid:state_enabled="false"android:color="@color/testcolor3" /><itemandroid:color="@color/testcolor5"/></selector>

is equivalent to the following code:

int[][] states = newint[4][];
int[] colors = newint[4];

states[0] = newint[] { android.R.attr.state_focused };
states[1] = newint[] { android.R.attr.state_pressed, -android.R.attr.state_enabled };
states[2] = newint[] { -android.R.attr.state_enabled };
states[3] = newint[0];

colors[0] = getResources().getColor(R.color.testcolor1);
colors[1] = getResources().getColor(R.color.testcolor2);
colors[2] = getResources().getColor(R.color.testcolor3);
colors[3] = getResources().getColor(R.color.testcolor5);

ColorStateList csl = newColorStateList(states, colors);

The documentation for what a color state and how selectors work is here.