Create themes in the Android app

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Create themes in the Android app

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#1 by (2 votes)

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People, it is possible to customize the color of the action bar on Android, because I am developing an application and I wanted the users to choose the color of the application that they like. Does anyone know if it is possible to do this with appcompat.

android sqlite actionbar

asked by anonymous 11.10.2016 / 16:17

1 answer

I can not fix this error java.lang.NullPointerException Create a get / set for the cpf string, which verifies that it has 11 digits, being they numbers?

score 2 · Accepted Answer

If you use Toolbar , yes. it is in the appcompat-v7 library and you should choose the NoActionBar theme for the app:

    <style name="AppBaseTheme" parent="@style/Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    </style>

Insert a Toolbar into your xml layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="@dimen/toolbar_height"
    android:background="@color/colorPrimary"
    app:titleTextColor="@android:color/white">
</LinearLayout>

Now in Activity, identify the Toolbar:

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

Remembering that Activity must be AppCompatActivity or ActionBarActivity type:

public class MeuActivity extends ActionBarActivity

Now your Toolbar is a View like any other. You can change the background color using:

int corVerde = Color.parseColor("#50a600");
toolbar.setBackgroundColor(corVerde);