//String classToHook = new String();
//String methodToHook = new String();

public class Tutorial implements IXposedHookLoadPackage {
	public void handleLoadPackage(LoadPackageParam lpparam) throws Throwable {	
		if (!lpparam.packageName.equals([PACKAGE TO HOOK]))
	        return;
	XposedBridge.log("WE ARE IN [PACKAGE TO HOOK] !");

findAndHookMethod([CLASS TO HOOK], lpparam.classLoader, [METHOD TO HOOK], new XC_MethodHook() {
	// This will be executed before the method.
	protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
	XposedBridge.log("[DEBUG] Before [METHOD TO HOOK] method.");
	}
	// This will be executed after the method.
	protected void afterHookedMethod(MethodHookParam param) throws Throwable {
	XposedBridge.log("[DEBUG] After [METHOD TO HOOK] method.");
	// Get return parameters of the function.
	XposedBridge.log("[DEBUG] Return parameters of [METHOD TO HOOK]: "+param.getResult());
	}
});