This simple example shows how to pass an ArrayList from one activity to another in Android.
This is the first activity on which we are sending the arrayList.
package com.coderzheaven.passarraylist; import java.util.ArrayList; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final ArrayList<String> arr = new ArrayList<String>(); arr.add("Hello"); arr.add("CoderzHeaven"); findViewById(R.id.button1).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MainActivity.this, Second.class); intent.putExtra("array_list", arr); startActivity(intent); } }); } }
Now this is the second activity in which we are receiving the passed arrayList.
package com.coderzheaven.passarraylist; import java.util.ArrayList; import android.app.Activity; import android.os.Bundle; public class Second extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.second_activity); Bundle b = getIntent().getExtras(); if(b!=null){ ArrayList<String> arr = (ArrayList<String>)b.getStringArrayList("array_list"); System.out.println(arr); } } }
This is the AndroidManifest file.
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.coderzheaven.passarraylist" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/title_activity_main" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".Second"></activity> </application> </manifest>
Please check the LogCat for the Output.
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