fatorx

Se o elemento não for exibido, mesmo no preview do Android Studio, 
verificar se não está dentro de um ScrollView

fatorx

View view = getWindow().getDecorView().findViewById(android.R.id.content);

/**
 * Em alguns casos, é interessante ter acesso a view. Eu seto componentes fora da Activity, em outra classe, 
 * para me organizar melhor, e isso foi de grande ajuda (motivo da solução: usar o Butter Knife fora da activity) 
 * /

fatorx

/*
Em alguns casos, no do lib de carregamento de imagens Fresco (http://frescolib.org/), é necessário
utilizar uri's. Para carregar um recurso local como um URI, segue trecho de código.
*/
Uri path = Uri.parse("android.resource://com.yourdomain.yourapp/" + R.drawable.ic_notif_single_tick);

/*
 Onde com.yourdomain.yourapp é o pacote de seu aplicativo. 
 */

fatorx

Sempre setar o Layout Manager 

recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext()));

não esquecer nunca.

fatorx

int seconds =  88200;    
int secHour = 3600; 
float val = ( (float) seconds  / (float) secHour);  

System.out.println( val );

fatorx

http://stackoverflow.com/questions/3875184/cant-create-handler-inside-thread-that-has-not-called-looper-prepare
http://stackoverflow.com/questions/5009816/cant-create-handler-inside-thread-which-has-not-called-looper-prepare

fatorx

final Handler handler = new Handler(){
                    @Override
                    public void handleMessage(Message msg) {
                        switch(msg.what){
                            case 0:
                                nextActivity();
                                progress.dismiss();
                        }
                        super.handleMessage(msg);
                    }

fatorx

http://badlogicgames.com/forum/viewtopic.php?t=19301&p=81023

So I appear to have solved this now...Even though the application was uninstalled from the device for all users, uninstalled via the ADB and did not appear on the list of packages from the ADB, it was still present on the device. On the device, under "Settings -> Apps -> All", at the very bottom was an entry for my application. It was tagged as "Not installed for all users", after selecting it and opening the top-right menu, I could select "Uninstall for all users". For some reason, this fixes the issue.


--------------------------------

Quando ocorrer o erro de não ser possível reinstalar o aplicativo via APK.

fatorx

<LinearLayout
            android:layout_width="270dp"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:gravity="center_vertical"
            android:background="#993366">

            <TextView
                android:id="@+id/tvTitleActivity"
                android:layout_gravity="center"

fatorx

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

    <include layout="@layout/toolbar_main" />

</LinearLayout>