always on amoled

Android

Greenify save battery life

http://gs5.wonderhowto.com/how-to/automatically-hibernate-apps-for-better-battery-life-no-root-required-0157251/

Notepad

http://www.technipages.com/add-reminder-notes-to-android-home-screen

Android course

https://www.coursera.org/specialization/mobilecloudcomputing2/36?utm_medium=courseDescripTop

use visual studio for android development

http://stackoverflow.com/questions/1371939/how-can-i-use-ms-visual-studio-for-android-development

Android ImageView

http://www.mkyong.com/android/android-imageview-example/

Android Hello World step by step

#7 Hello World Android Example Explained Part 3: 

Android Color definitions

http://developer.android.com/reference/android/graphics/Color.html#BLACK

Android RelativLayout - below

Android Add viewserver

download ViewServer.java from below

https://github.com/romainguy/viewserver

click on Raw and copy whole thing

add java to project, fix the package

add internet permission to project

add  ViewServer in activity

In sample project get the 3 code section below

Android add internet permission to project

FragmentManager and Backstack

#18 Android FragmentManager and Backstack Part 1

https://www.youtube.com/watch?v=ZbKKxYUOH-c


call popBackStack()

call popBackStack("A") go directly to A

call popBackStack ("screen 2", POP_BACK_STACK_INCLUSIVE) remove screen 2 also

OnBackStackChangedListener

getBackStackEntryCount()

getBackStackEntryAt(int index)

BackStackEntry getName() to retrieve the name when addToBackStack (with name) was called.

#19 Android FragmentManager and Backstack Part 2

https://www.youtube.com/watch?v=PqpppvGiCAk

Use textview in activity_main

a ListView in the first Fragment and I want to move to a new Fragment when I clicked on an item

http://stackoverflow.com/questions/17971144/how-to-move-to-new-fragment-at-on-onitemclicklistener

http://wptrafficanalyzer.in/blog/itemclick-handler-for-listfragment-in-android/

Create Android list fragment step by step according to slidenerd video

http://developer.android.com/reference/android/app/ListFragment.html

other examples

http://wptrafficanalyzer.in/blog/android-lazy-loading-images-and-text-in-listview-from-http-json-data/

I think slidenerd video is the best, and there are other references below:

http://www.vogella.com/tutorials/AndroidListView/article.html

Watch  video => here (below is step by step of the video, if you watch video it is too quick, you need screen shots to use afterwards)

Create a project

add string-array as the data

create Java 

package com.gregchu.f1.app.dummy;

/**

 * Created by greg on 6/4/2014.

 */

public class MyListFragment extends ListFragment{{

}

create layout

add listview to layout just created above

add a text view (skipped picture)

then change the listview XML to android:id/list

<?xml version="1.0" encoding="utf-8"?>

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

    <ListView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@android:id/list" />
</LinearLayout>

Change text view

 <TextView
        android:id="@android:id/empty"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center" />

Add onActivity created

public class MyListFragment extends ListFragment{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.my_list_fragment, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }
}

Create Adaptor to use data from string-array

public class MyListFragment extends ListFragment{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.my_list_fragment, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
       
      ArrayAdapter adapter=  ArrayAdapter.createFromResource(getActivity(),R.array.chu,android.R.layout.simple_list_item_1);
    }
}

Add setListAdapter

public class MyListFragment extends ListFragment{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.my_list_fragment, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

      ArrayAdapter adapter=  ArrayAdapter.createFromResource(getActivity(),R.array.chu,android.R.layout.simple_list_item_1);
        setListAdapter(adapter);
    }
}

Add item click listener

/**
 * Created by greg on 6/4/2014.
 */
public class MyListFragment extends ListFragment implements AdapterView.OnItemClickListener{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.my_list_fragment, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

      ArrayAdapter adapter=  ArrayAdapter.createFromResource(getActivity(),R.array.chu,android.R.layout.simple_list_item_1);
        setListAdapter(adapter);
        getListView().setOnItemClickListener(this);
    }

    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long id) {
        Toast.makeText(getActivity(),"Item "+i,Toast.LENGTH_SHORT).show();
    }
}

You can run on your device now. 

It took me more than 2 hours to create this step by step instruction according the video.