How To Send Arraylist To Service In Android

How to pass an arrayList to some other action using intents in Android?

This case demonstrates how do I pass an arrayList to another activeness using intends in android.

Stride 1− Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Footstep two − Add together the following code to res/layout/activity_main.xml.

<?xml version="ane.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:id="@+id/relativeLayout"    tools:context=".MainActivity">    <Push       android:id="@+id/push button"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:text="Laissez passer array to 2nd Activeness"       android:layout_centerInParent="true" /> </RelativeLayout>

Step 3 − Add together the following code to src/MainActivity.java

import android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.bone.Bundle; import android.view.View; import android.widget.Button; import java.util.ArrayList; public class MainActivity extends AppCompatActivity{    Button button;    ArrayList<String> numbers = new ArrayList<>();    @Override    public void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       button = findViewById(R.id.push);       push.setOnClickListener(new View.OnClickListener() {          @Override          public void onClick(View five) {             numbers.add("ONE");             numbers.add("TWO");             numbers.add("3");             numbers.add("Four");             numbers.add together("Five");             Intent intent = new Intent(MainActivity.this, SecondActivity.form);             intent.putExtra("central", numbers);             startActivity(intent);          }       });    } }

Step 4– Create a new Activity(SecondActivity) and add the following code in SecondActivity.java

import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.TextView; import java.util.ArrayList; public class SecondActivity extends AppCompatActivity {    TextView textView;    @Override    protected void onCreate(Package savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_second);       textView = findViewById(R.id.textView);       ArrayList<Cord> numbersList = (ArrayList<Cord>) getIntent().getSerializableExtra("key");       textView.setText(String.valueOf(numbersList));    } }

Step v– Add the following lawmaking in the activity_second.xml

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".SecondActivity">    <TextView       android:id="@+id/textView"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_centerInParent="truthful"       android:text=""       android:textSize="24sp"       android:textStyle="bold"/> </RelativeLayout>

Step 6- Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample">    <awarding       android:allowBackup="truthful"       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=".SecondActivity"></activity>       <activity android:name=".MainActivity">          <intent-filter>             <action android:name="android.intent.action.MAIN" />             <category android:proper name="android.intent.category.LAUNCHER" />          </intent-filter>       </activity>    </awarding> </manifest>

Let's try to run your application. I presume you accept connected your bodily Android Mobile device with your computer. To run the app from android studio, open up one of your projection's activeness files and click Run icon from the toolbar. Select your mobile device every bit an selection and so cheque your mobile device which will display your default screen –

Click hither to download the project code.

Published on 29-Aug-2019 xi:54:53

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