fatorx

Checar esses  passos
http://stackoverflow.com/questions/25968542/please-check-the-confirmation-dialog-on-your-device

fatorx

<EditText
android:layout_width="match_parent"
android:layout_height="180dp"
android:textColor="#000000"
android:hint="Text Hint Info..."
android:textColorHint="#CCCCCC"
android:textSize="20dp"
android:elegantTextHeight="true"
android:id="@+id/edDescription"
android:background="#FFF"

fatorx

Em uma activity ou fragment, verificar o life cycle para evitar executar código a cada acesso. 

Por exemplo: 
  - Acessar uma lista de itens
  - Acessar um dos itens da lista
  - Voltar para lista 

Dependendo do método executado (em relação a Activity e ao Fragment), a cada acesso a tela pode 
ser atualizada ou também uma nova consulta ao webservice é executada.

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>

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

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

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

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

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

System.out.println( val );

fatorx

Sempre setar o Layout Manager 

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

não esquecer nunca.