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Josh Halvorson - Android Congress #1

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99d97d7
Implemented the MVVM architecture
Nov 9, 2018
831d4a6
Implemented the MVVM architecture
Nov 9, 2018
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3 changes: 3 additions & 0 deletions app/build.gradle
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Expand Up @@ -25,4 +25,7 @@ dependencies {
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'android.arch.lifecycle:extensions:1.1.1'
implementation 'android.arch.lifecycle:viewmodel:1.1.1'
implementation project(':congressdataapiaccess-debug')
}
5 changes: 4 additions & 1 deletion app/src/main/AndroidManifest.xml
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@@ -1,8 +1,10 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.lambdaschool.congressdetails">

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:usesCleartextTraffic="true"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
Expand All @@ -16,6 +18,7 @@
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".CongresspersonDetailsActivity"></activity>
</application>

</manifest>
26 changes: 26 additions & 0 deletions app/src/main/java/com/lambdaschool/congressdetails/CongressPersonOverviewViewmodel.java
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package com.lambdaschool.congressdetails;

import android.arch.lifecycle.LiveData;
import android.arch.lifecycle.MutableLiveData;
import android.arch.lifecycle.ViewModel;
import android.util.Log;

import com.lambdaschool.congressdataapiaccess.CongresspersonOverview;

import java.util.ArrayList;

public class CongressPersonOverviewViewmodel extends ViewModel {
private MutableLiveData<ArrayList<CongresspersonOverview>> congressList;

public LiveData<ArrayList<CongresspersonOverview>> getCongressList(){
if(congressList == null){
Log.i("LOADLIST", "list is loaded");
loadList();
}
return congressList;
}

private void loadList(){
congressList = CongresspersonOverviewRepo.getOverviewList();
}
}
48 changes: 48 additions & 0 deletions app/src/main/java/com/lambdaschool/congressdetails/CongresspersonDetailsActivity.java
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package com.lambdaschool.congressdetails;

import android.arch.lifecycle.LiveData;
import android.arch.lifecycle.Observer;
import android.arch.lifecycle.ViewModelProviders;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import com.lambdaschool.congressdataapiaccess.CongressDao;
import com.lambdaschool.congressdataapiaccess.CongresspersonDetails;

public class CongresspersonDetailsActivity extends AppCompatActivity {

TextView name, party, state, totalVotes;
CongresspersonDetailsViewModel viewModel;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_congressperson_details);
name = findViewById(R.id.name);
party = findViewById(R.id.party);
state = findViewById(R.id.state);
totalVotes = findViewById(R.id.votes);

String id = getIntent().getStringExtra("PersonId");
final String stateString = getIntent().getStringExtra("PersonState");
final String totalVotesNumber = getIntent().getStringExtra("PersonVotes");

if(id != null && stateString != null && totalVotesNumber != null){
viewModel = ViewModelProviders.of(this).get(CongresspersonDetailsViewModel.class);
LiveData<CongresspersonDetails> liveDetails = viewModel.getDetails(id);
liveDetails.observe(this, new Observer<CongresspersonDetails>() {
@Override
public void onChanged(@Nullable CongresspersonDetails congresspersonDetails) {
if(congresspersonDetails != null){
name.setText(congresspersonDetails.getFirstName() + " " + congresspersonDetails.getLastName());
party.setText(congresspersonDetails.getCurrentParty());
state.setText(stateString);
totalVotes.setText(totalVotesNumber);
}
}
});
}
}
}
17 changes: 17 additions & 0 deletions app/src/main/java/com/lambdaschool/congressdetails/CongresspersonDetailsRepo.java
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package com.lambdaschool.congressdetails;

import android.arch.lifecycle.MutableLiveData;

import com.lambdaschool.congressdataapiaccess.CongressDao;
import com.lambdaschool.congressdataapiaccess.CongresspersonDetails;

import java.util.ArrayList;

public class CongresspersonDetailsRepo {
public static MutableLiveData<CongresspersonDetails> getDetails(String id){
final MutableLiveData<CongresspersonDetails> liveDataList = new MutableLiveData<>();
CongresspersonDetails profile = CongressDao.getMemberDetails(id);
liveDataList.setValue(profile);
return liveDataList;
}
}
24 changes: 24 additions & 0 deletions app/src/main/java/com/lambdaschool/congressdetails/CongresspersonDetailsViewModel.java
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package com.lambdaschool.congressdetails;

import android.arch.lifecycle.LiveData;
import android.arch.lifecycle.MutableLiveData;
import android.arch.lifecycle.ViewModel;

import com.lambdaschool.congressdataapiaccess.CongressDao;
import com.lambdaschool.congressdataapiaccess.CongresspersonDetails;

public class CongresspersonDetailsViewModel extends ViewModel {

private MutableLiveData<CongresspersonDetails> liveDetails;

public LiveData<CongresspersonDetails> getDetails(String id){
if(liveDetails == null){
loadData(id);
}
return liveDetails;
}

public void loadData(String id) {
liveDetails = CongresspersonDetailsRepo.getDetails(id);
}
}
20 changes: 20 additions & 0 deletions app/src/main/java/com/lambdaschool/congressdetails/CongresspersonOverviewRepo.java
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package com.lambdaschool.congressdetails;

import android.arch.lifecycle.MutableLiveData;
import android.util.Log;

import com.lambdaschool.congressdataapiaccess.CongressDao;
import com.lambdaschool.congressdataapiaccess.CongresspersonOverview;

import java.util.ArrayList;

public class CongresspersonOverviewRepo {

public static MutableLiveData<ArrayList<CongresspersonOverview>> getOverviewList(){
final MutableLiveData<ArrayList<CongresspersonOverview>> liveDataList = new MutableLiveData<>();
ArrayList<CongresspersonOverview> rawData = CongressDao.getAllMembers();
liveDataList.setValue(rawData);
return liveDataList;
}

}
60 changes: 60 additions & 0 deletions app/src/main/java/com/lambdaschool/congressdetails/ListActivity.java
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@@ -1,13 +1,73 @@
package com.lambdaschool.congressdetails;

import android.arch.lifecycle.Observer;
import android.arch.lifecycle.ViewModelProviders;
import android.content.Context;
import android.content.Intent;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.lambdaschool.congressdataapiaccess.CongresspersonDetails;
import com.lambdaschool.congressdataapiaccess.CongresspersonOverview;

import java.util.ArrayList;

public class ListActivity extends AppCompatActivity {

LinearLayout parentLayout;
CongressPersonOverviewViewmodel viewModel;
Context context;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
context = this;
parentLayout = findViewById(R.id.parent_layout);
viewModel = ViewModelProviders.of(this).get(CongressPersonOverviewViewmodel.class);
viewModel.getCongressList().observe(this, new Observer<ArrayList<CongresspersonOverview>>() {
@Override
public void onChanged(@Nullable ArrayList<CongresspersonOverview> congresspersonOverviews) {
if (congresspersonOverviews != null) {
for (final CongresspersonOverview c : congresspersonOverviews) {
runOnUiThread(new Runnable() {
@Override
public void run() {
parentLayout.addView(getDefaultTextView(c));
}
});

}
}
}
});
}

TextView getDefaultTextView(final CongresspersonOverview congress) {
TextView view = new TextView(context);
final String fName = congress.getFirstName();
final String lName = congress.getLastName();
final String state = congress.getState();
final String party = congress.getParty();
String displayText = String.format("%s, %s - %s (%s)", lName, fName, party, state);
view.setText(displayText);
view.setTextSize(28);
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String id = congress.getId();
String votes = Integer.toString(congress.getTotalVotes());
Intent intent = new Intent(context, CongresspersonDetailsActivity.class);
intent.putExtra("PersonId", id);
intent.putExtra("PersonState", state);
intent.putExtra("PersonVotes", votes);
startActivity(intent);
}
});
return view;
}
}
50 changes: 50 additions & 0 deletions app/src/main/res/layout/activity_congressperson_details.xml
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<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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=".CongresspersonDetailsActivity">

<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="@+id/state"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />

<TextView
android:id="@+id/state"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
app:layout_constraintEnd_toStartOf="@+id/party"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/name"
app:layout_constraintTop_toTopOf="@+id/name" />

<TextView
android:id="@+id/party"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="@+id/state"
app:layout_constraintTop_toTopOf="@+id/state" />

<TextView
android:id="@+id/votes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/state" />
</android.support.constraint.ConstraintLayout>
19 changes: 11 additions & 8 deletions app/src/main/res/layout/activity_list.xml
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Expand Up @@ -6,13 +6,16 @@
android:layout_height="match_parent"
tools:context=".ListActivity">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">

<LinearLayout
android:id="@+id/parent_layout"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>

</ScrollView>

</android.support.constraint.ConstraintLayout>