Android-使用onclick调用style.xml

Question

I have this code

<style name="large">
    <item name="android:textSize">20dp</item>
</style>

My layout

<Button
    android:id="@+id/button_s"
    android:text="@string/button_small" />

<Button
    android:id="@+id/button_l"
    android:text="@string/button_large" />

<TextView
    android:id="@+id/textView1"
    android:text="Hello World" />

I want when i click button large, it call style large . Please help me!

Answer 1

Try this,

Button button = (Button)findViewById(R.id.button_l);
final TextView textViewTitle = (TextView) findViewById(R.id.textView1);

button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        if (Build.VERSION.SDK_INT < 23) {
            textViewTitle.setTextAppearance(ActivityName.this, R.style.large);
        } else {
            textViewTitle.setTextAppearance(R.style.large);
        }
    }
});