Android examples for Activity:Activity Background
convert Activity To Translucent
//package com.java2s; import android.app.Activity; import android.app.ActivityOptions; import android.os.Build; import java.lang.reflect.Method; public class Main { public static void convertActivityToTranslucent(Activity activity) { try {//from w ww. j a va2 s .com Class<?>[] classes = Activity.class.getDeclaredClasses(); Class<?> translucentConversionListenerClazz = null; for (Class clazz : classes) { if (clazz.getSimpleName().contains( "TranslucentConversionListener")) { translucentConversionListenerClazz = clazz; } } if (Build.VERSION.SDK_INT < 21) { Method method = Activity.class.getDeclaredMethod( "convertToTranslucent", translucentConversionListenerClazz); method.setAccessible(true); method.invoke(activity, new Object[] { null }); } else { Method method = Activity.class.getDeclaredMethod( "convertToTranslucent", translucentConversionListenerClazz, ActivityOptions.class); method.setAccessible(true); method.invoke(activity, new Object[] { null, null }); } } catch (Throwable t) { t.printStackTrace(); } } }