Tag: android

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="iterator.ir.a042.MainActivity">

    <ExpandableListView
        android:id="@+id/expandableListViewProvinces"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true" />
</RelativeLayout>

HeaderInfo.java

public class HeaderInfo {

    public String getProvoniceName() {
        return provoniceName;
    }

    public void setProvoniceName(String provoniceName) {
        this.provoniceName = provoniceName;
    }

    private String provoniceName;

    public int getPopulation() {
        return population;
    }

    private int population;

    public ArrayList<DetailInfo> getCities() {
        return cities;
    }

    public void setCities(ArrayList<DetailInfo> cities) {
        this.cities = cities;

        int pop=0;

        for (DetailInfo info:cities)
        {
            pop+=info.getPopulation();
        }

        this.population=pop;
    }

    private ArrayList<DetailInfo> cities=new ArrayList<>();

}

DetailInfo.java

public class DetailInfo {

    private String cityName;

    public String getCityName() {
        return cityName;
    }

    public void setCityName(String cityName) {
        this.cityName = cityName;
    }

    public int getPopulation() {
        return population;
    }

    public void setPopulation(int population) {
        this.population = population;
    }

    private int population;
}

CustomAdapter.java

public class CustomAdapter extends BaseExpandableListAdapter {

    private Context context;
    private ArrayList<HeaderInfo> cInfo;

    public CustomAdapter(Context context,ArrayList<HeaderInfo> cInfo)
    {
        this.context=context;
        this.cInfo=cInfo;
    }

    @Override
    public int getGroupCount() {
        return cInfo.size();
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return cInfo.get(groupPosition).getCities().size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return cInfo.get(groupPosition);
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) {
        return cInfo.get(groupPosition).getCities().get(childPosition);
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public boolean hasStableIds() {
        return true;
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {

        View view=convertView;

        if (view==null)
        {
            LayoutInflater layoutInflater=LayoutInflater.from(context);
            view=layoutInflater.inflate(R.layout.header_layout,parent,false);
        }

        HeaderInfo current=this.cInfo.get(groupPosition);

        if (current!=null)
        {
            TextView textViewProvinceName= (TextView) view.findViewById(R.id.textViewProvinceName);
            TextView textViewProvincePopulation= (TextView) view.findViewById(R.id.textViewProvincePopulation);

            textViewProvinceName.setText(current.getProvoniceName());
            textViewProvincePopulation.setText(String.valueOf(current.getPopulation()));
        }

        return view;
    }

    @Override
    public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
        View view=convertView;

        if (view==null)
        {
            LayoutInflater layoutInflater=LayoutInflater.from(context);
            view=layoutInflater.inflate(R.layout.detail_layout,parent,false);
        }

        DetailInfo current=this.cInfo.get(groupPosition).getCities().get(childPosition);

        if (current!=null)
        {
            TextView textViewCityName= (TextView) view.findViewById(R.id.textViewCityName);
            TextView textViewCityPopulation= (TextView) view.findViewById(R.id.textViewCityPopulation);

            textViewCityName.setText(current.getCityName());
            textViewCityPopulation.setText(String.valueOf(current.getPopulation()));
        }

        return view;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }
}

MainActivity.java

public class MainActivity extends AppCompatActivity {

    ExpandableListView expandableListViewProvinces;
    ArrayList<HeaderInfo> provonices;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        GenerateData();

        expandableListViewProvinces= (ExpandableListView) findViewById(R.id.expandableListViewProvinces);
        CustomAdapter adapter=new CustomAdapter(this,provonices);
        expandableListViewProvinces.setAdapter(adapter);
    }

    private void GenerateData()
    {
        provonices=new ArrayList<>();


        DetailInfo detailInfo1=new DetailInfo();
        detailInfo1.setCityName("Rasht");
        detailInfo1.setPopulation(1000000);


        DetailInfo detailInfo2=new DetailInfo();
        detailInfo2.setCityName("Lahijan");
        detailInfo2.setPopulation(700000);

        DetailInfo detailInfo3=new DetailInfo();
        detailInfo3.setCityName("Anzali");
        detailInfo3.setPopulation(800000);

        DetailInfo detailInfo4=new DetailInfo();
        detailInfo4.setCityName("Fouman");
        detailInfo4.setPopulation(200000);

        ArrayList<DetailInfo> cities1=new ArrayList<>();
        cities1.add(detailInfo1);
        cities1.add(detailInfo2);
        cities1.add(detailInfo3);
        cities1.add(detailInfo4);

        HeaderInfo headerInfo1=new HeaderInfo();
        headerInfo1.setProvoniceName("Guilan");
        headerInfo1.setCities(cities1);

        DetailInfo detailInfo5=new DetailInfo();
        detailInfo5.setCityName("Tehran");
        detailInfo5.setPopulation(10000000);


        DetailInfo detailInfo6=new DetailInfo();
        detailInfo6.setCityName("Hashtgerd");
        detailInfo6.setPopulation(700000);


        ArrayList<DetailInfo> cities2=new ArrayList<>();
        cities2.add(detailInfo5);
        cities2.add(detailInfo6);


        HeaderInfo headerInfo2=new HeaderInfo();
        headerInfo2.setProvoniceName("Tehran");
        headerInfo2.setCities(cities2);


        DetailInfo detailInfo7=new DetailInfo();
        detailInfo7.setCityName("Qazvin");
        detailInfo7.setPopulation(1000000);


        ArrayList<DetailInfo> cities3=new ArrayList<>();
        cities3.add(detailInfo7);

        HeaderInfo headerInfo3=new HeaderInfo();
        headerInfo3.setProvoniceName("Qazvin");
        headerInfo3.setCities(cities3);

        provonices.add(headerInfo1);
        provonices.add(headerInfo2);
        provonices.add(headerInfo3);
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/042

/res/drawable/gradient_color.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient
        android:angle="0"
        android:startColor="#000000"
        android:endColor="#FFFFFF"/>
</shape>

/res/values/styles.xml

<resources>
    <style name="custom_theme" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="android:actionBarStyle">@style/custom_color</item>
        <!-- Support library compatibility -->
        <item name="actionBarStyle">@style/custom_color</item>
    </style>

    <style name="custom_color" parent="Widget.AppCompat.Light.ActionBar.Solid.Inverse">
        <item name="android:background">@drawable/gradient_color</item>
        <!-- Support library compatibility -->
        <item name="background">@drawable/gradient_color</item>
    </style>
</resources>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="iterator.ir.a041">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/custom_theme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

References
https://github.com/mhdr/AndroidSamples/tree/master/041

/res/values/styles.xml

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>


    <style name="Style_One">
        <item name="android:layout_width">match_parent</item>
        <item name="android:layout_height">wrap_content</item>
    </style>

    <style name="Style_One.Style_Two">
        <item name="android:textColor">@android:color/holo_orange_light</item>
    </style>
</resources>

MainActivity.java

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="iterator.ir.a040.MainActivity">


    <TextView
        android:id="@+id/textView"
        style="@style/Style_One"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="55dp"
        android:gravity="center"
        android:text="Style One"
        android:textAppearance="@style/TextAppearance.AppCompat.Large" />

    <TextView
        android:id="@+id/textView2"
        style="@style/Style_One.Style_Two"
        android:layout_alignEnd="@+id/textView"
        android:layout_alignRight="@+id/textView"
        android:layout_below="@+id/textView"
        android:layout_marginTop="40dp"
        android:gravity="center"
        android:text="Style Two"
        android:textAppearance="@style/TextAppearance.AppCompat.Large" />
</RelativeLayout>

References
https://github.com/mhdr/AndroidSamples/tree/master/040

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="iterator.ir.a039">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".ChildOneActivity" android:parentActivityName=".MainActivity"/>
        <activity android:name=".ChildTwoActivity" android:parentActivityName=".MainActivity"/>
    </application>

</manifest>

ChildOneActivity.java

public class ChildOneActivity extends AppCompatActivity {

    Button buttonOpenChildTwo;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_child_one);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        buttonOpenChildTwo= (Button) findViewById(R.id.buttonOpenChildTwo);
        buttonOpenChildTwo.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=new Intent(getBaseContext(),ChildTwoActivity.class);
                startActivity(intent);
            }
        });
    }
}

ChildTwoActivity.java

public class ChildTwoActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_child_two);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/039

/res/menu/main_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:id="@+id/itemShare"
        android:icon="@drawable/ic_share_white_24dp"
        android:title="@string/share"
        app:showAsAction="always" />
    <item
        android:id="@+id/itemSearch"
        android:icon="@drawable/ic_share_white_24dp"
        android:title="@string/search" />
</menu>

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ActionBar actionBar=getSupportActionBar();

        actionBar.setLogo(R.drawable.ic_android_white_24dp);
        actionBar.setDisplayUseLogoEnabled(true);
        actionBar.setDisplayShowHomeEnabled(true);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.main_menu,menu);

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        switch (item.getItemId())
        {
            case R.id.itemSearch:
                Toast.makeText(getBaseContext(),"Search",Toast.LENGTH_LONG).show();
                break;
            case R.id.itemShare:
                Toast.makeText(getBaseContext(),"Share",Toast.LENGTH_LONG).show();
                break;
        }

        return super.onOptionsItemSelected(item);
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/038

MainActivity.java

package iterator.ir.appc;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    Button buttonShow;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        buttonShow= (Button) findViewById(R.id.buttonShow);

        buttonShow.setOnClickListener(buttonShow_OnClickListener);
    }

    View.OnClickListener buttonShow_OnClickListener=new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent=new Intent("ir.iterator.AppA.MessageActivity");

            Intent chooser=Intent.createChooser(intent,"APP Selector");

            startActivity(chooser);
        }
    };
}

References
https://github.com/mhdr/AndroidSamples/tree/master/037

AppA MainActivity.java

package iterator.ir.appa;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    Button buttonShow;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        buttonShow= (Button) findViewById(R.id.buttonShow);

        buttonShow.setOnClickListener(buttonShow_OnClickListener);
    }

    View.OnClickListener buttonShow_OnClickListener=new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent=new Intent(getBaseContext(),MessageActivity.class);
            startActivity(intent);
        }
    };
}

AppA AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="iterator.ir.appa">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".MessageActivity">
            <intent-filter>
                <action android:name="ir.iterator.AppA.MessageActivity" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
    </application>

AppB MainActivity.java

package iterator.ir.appb;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    Button buttonShow;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        buttonShow= (Button) findViewById(R.id.buttonShow);
        buttonShow.setOnClickListener(buttonShow_OnClickListener);

    }

    View.OnClickListener buttonShow_OnClickListener=new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent=new Intent("ir.iterator.AppA.MessageActivity");
            startActivity(intent);
        }
    };
}

References
https://github.com/mhdr/AndroidSamples/tree/master/036

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="iterator.ir.a033.MainActivity"
    android:orientation="vertical">

    <fragment
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:name="iterator.ir.a033.FirstFragment"
        android:id="@+id/fragment1"
        tools:layout="@layout/fragment_first" />

    <View
        android:layout_width="match_parent"
        android:layout_height="20dp" />

    <fragment
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:name="iterator.ir.a033.SecondFragment"
        android:id="@+id/fragment2"
        tools:layout="@layout/fragment_second" />

</LinearLayout>

References
https://github.com/mhdr/AndroidSamples/tree/master/033

FirstFragment.java

public class FirstFragment extends Fragment {

    Button buttonSend;
    EditText editTextName;

    private OnFragment1InteractionListener mListener;

    public FirstFragment() {

    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view= inflater.inflate(R.layout.fragment_first, container, false);

        buttonSend= (Button) view.findViewById(R.id.buttonSend);
        editTextName= (EditText) view.findViewById(R.id.editTextName);

        buttonSend.setOnClickListener(onClickListener);

        return view;
    }

    View.OnClickListener onClickListener=new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String name=editTextName.getText().toString();
            onButtonPressed(name);
        }
    };

    public void onButtonPressed(String name) {
        if (mListener != null) {
            mListener.onFragment1ButtonClicked(name);
        }
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnFragment1InteractionListener) {
            mListener = (OnFragment1InteractionListener) context;
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnFragment1InteractionListener");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }

    public interface OnFragment1InteractionListener {
        void onFragment1ButtonClicked(String name);
    }
}

SecondFragment.java

public class SecondFragment extends Fragment {

    TextView textViewMessage;

    public SecondFragment() {

    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View  view= inflater.inflate(R.layout.fragment_second, container, false);

        textViewMessage= (TextView) view.findViewById(R.id.textViewMessage);

        return view;
    }

    public void setTextViewMessage(String name)
    {
        textViewMessage.setText("Hello " + name);
    }
}

MainActivity.java

public class MainActivity extends AppCompatActivity implements FirstFragment.OnFragment1InteractionListener{

    RelativeLayout container1;
    RelativeLayout container2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        container1= (RelativeLayout) findViewById(R.id.relativeLayoutContainer1);
        container2= (RelativeLayout) findViewById(R.id.relativeLayoutContainer2);

        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();


        FirstFragment firstFragment=new FirstFragment();
        SecondFragment secondFragment=new SecondFragment();

        transaction.add(R.id.relativeLayoutContainer1,firstFragment);
        transaction.add(R.id.relativeLayoutContainer2,secondFragment);

        transaction.commit();
    }

    @Override
    public void onFragment1ButtonClicked(String name) {
        SecondFragment fragment= (SecondFragment) getSupportFragmentManager().findFragmentById(R.id.relativeLayoutContainer2);
        fragment.setTextViewMessage(name);
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/032

ChangeColorFragment.java

public class ChangeColorFragment extends Fragment {

    private OnChangeColorFragmentInteractionListener mListener;
    RadioGroup radioGroupColors;

    public ChangeColorFragment() {
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view= inflater.inflate(R.layout.fragment_change_color, container, false);

        radioGroupColors= (RadioGroup) view.findViewById(R.id.radioGroupColors);

        radioGroupColors.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                onColorChanged(checkedId);
            }
        });

        return view;
    }

    public void onColorChanged(int id) {
        if (mListener != null) {
            mListener.onChangeColorFragmentInteraction(id);
        }
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnChangeColorFragmentInteractionListener) {
            mListener = (OnChangeColorFragmentInteractionListener) context;
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnChangeColorFragmentInteractionListener");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }

    public interface OnChangeColorFragmentInteractionListener {
        void onChangeColorFragmentInteraction(int id);
    }
}

MainActivity.java

public class MainActivity extends AppCompatActivity implements ChangeColorFragment.OnChangeColorFragmentInteractionListener{

    RelativeLayout layout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        layout= (RelativeLayout) findViewById(R.id.activity_main);

        FragmentTransaction transaction= getSupportFragmentManager().beginTransaction();

        ChangeColorFragment changeColorFragment=new ChangeColorFragment();
        transaction.add(R.id.relativeLayoutFragmentContainer,changeColorFragment);

        transaction.commit();
    }

    @Override
    public void onChangeColorFragmentInteraction(int id) {
        switch (id)
        {
            case R.id.radioButtonRed:
                layout.setBackgroundColor(getResources().getColor(R.color.red));
                break;
            case R.id.radioButtonBlue:
                layout.setBackgroundColor(getResources().getColor(R.color.blue));
                break;
        }
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/031