Langsung ke konten utama

Activity Life Cycle

There are 7 methods involves in activity life cycle in android, they are as shown in the following figure



step 1: create new project
step 2: add the following code in Main Activity

MainActivity.java

importandroid.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends Activity {

       String TAG = "Main Activity";

       @Override
       protected void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              setContentView(R.layout.activity_main);
              Log.d(TAG, "onCreate()");
       }

       @Override
       protected void onStart() {
              super.onStart();
              Log.d(TAG, "onStart()");
       }

       @Override
       protected void onResume() {
              super.onResume();
              Log.d(TAG, "onResume()");
       }

       @Override
       protected void onRestart() {
              super.onRestart();
              Log.d(TAG, "onRestart()");
       }

       @Override
       protected void onStop() {
              super.onStop();
              Log.d(TAG, "onStop()");
       }

       @Override
       protected void onPause() {
              super.onPause();
              Log.d(TAG, "onPause()");
       }

       @Override
       protected void onDestroy() {
              super.onDestroy();
              Log.d(TAG, "onDestroy()");
       }

}

step 3: run the application

Now you can see the following output in LogCat.




Komentar

Posting Komentar

Postingan populer dari blog ini

Download file using Okio in Android

Okio is a library that complements java.io and java.nio to make it much easier to access, store, and process your data. Simply Okio is a modern I/O API for Java.  In this post, we will see how to download image or any file using Okio. Okio is component for OkHttp Coding Part Create a new project in Android Studio. Add following dependencies to your  app-level  build.gradle  file. compile 'com.squareup.okhttp3:okhttp:3.6.0' Don't forget to add the following permission in your AndroidManifest.xml <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> Implementation Paste the following code in your Activity and Here, I have kept as MainActivity.java public void downloadImg(View view) { try { Request request = new Request.Builder() .url(imageLink) .build(); new OkHttpClient().newCall(request).enqueue(new Callback() { @Override public void onFail...
Posting Komentar
Baca selengkapnya

How Create a Accessibility Service in Android

Hello friends, In this Tutorial. In this post, I will show you how to use Accessibility Service for Android. Before that, we need to know What is Accessibility Service . Accessibility Service Here, I am taking an example for creating Virtual Service Button instead of Default Back Button. Project Structure: Create a new Project in Android Studio with the required Specifications. Codes: AndroidManifest.xml Don't forget to add the following permission in your manifest file. <uses-permission android:name="android.permission.BIND_ACCESSIBILITY_SERVICE"/> <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/> Don't forget to add the following Lines in your manifest file to create service for your application. <service android:name=".MyService" android:label="@string/app_name" android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE"> <intent-filter> <...
Posting Komentar
Baca selengkapnya

QR-Code Generator - Library

In this Post, I introduce my new Gradle Library. This Library is used to Generate QR Code Automatically for our specified input. How to Import the Library: Gradle: compile 'androidmads.library.qrgenearator:QRGenearator:1.0.0' Permission: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> How to use this Library: After importing this library, use the following lines to use this library. The following lines are used to generated the QR Code // Initializing the QR Encoder with your value to be encoded, type you required and Dimension QRGEncoder qrgEncoder = new QRGEncoder(inputValue, null, QRGContents.Type.TEXT, smallerDimension); try { // Getting QR-Code as Bitmap bitmap = qrgEncoder.encodeAsBitmap(); // Setting Bitmap to ImageView qrImage.setImageBitmap(bitmap); } catch (WriterException e) { Log.v(TAG, e.toString()); } Save QR Code as Image // Save with location, value, bitmap returned and type of Image(JPG/PNG). QRGSaver.save(s...
Posting Komentar
Baca selengkapnya