varunon9

Full Source Code: https://github.com/varunon9/DynamicWallpaper/tree/always_running_service

Steps-

1. Create a Foreground Service (MyService.java)
2. Create a Manifest registered Broadcast Receiver (MyReceiver.java) which will start your Foreground Service
3. In onDestroy lifecycle of MyService, send a broadcast intent to MyReceiver
4. Launch the MyService on app start from MainActivity (see step 8)
5. With above 4 steps, MyService will always get re-started when killed as long as onDestroy of Service gets called
6. onDestroy method of Service is not always guaranteed to be called and hence it might not get started again

colesnicov

/**
 * @Licence WTFPL
 */

#include "ftoa.h"

int ftoa(float f, char *p, uint8_t precision)
{

	typedef union

PasanBhanu

/*
This method can be used to download an image from the internet using a url in Android. This use Android Download Manager to
download the file and added it to the Gallery. Downloaded image will be saved to "Pictures"
Folder in your internal storage
*/

private void downloadImageNew(String filename, String downloadUrlOfImage){
    try{
        DownloadManager dm = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
        Uri downloadUri = Uri.parse(downloadUrlOfImage);

abdurrahmanekr

FrantisekGazo

package eu.f3rog.ui.custom;

import android.content.Context;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.annotation.Nullable;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;

/**

lopspower

All Android Directory Path

1) System directories

⚠️ We can't write to these folers

Method	Result

liu7yong

WifiConfiguration wifiConfig = new WifiConfiguration();
wifiConfig.SSID = String.format("\"%s\"", ssid);
wifiConfig.preSharedKey = String.format("\"%s\"", key);

WifiManager wifiManager = (WifiManager)getSystemService(WIFI_SERVICE);
//remember id
int netId = wifiManager.addNetwork(wifiConfig);
wifiManager.disconnect();
wifiManager.enableNetwork(netId, true);
wifiManager.reconnect();

grantland

RecyclerView item onClick

RecyclerView does not have an OnItemClickListener like it's predecessor, ListView. However, detecting item clicks is pretty simple.

Set an OnClickListener in your ViewHolder creation:

private class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder>  {

    public static class ViewHolder extends RecyclerView.ViewHolder

vinigracindo

package utils;

import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

codeswimmer

public Bitmap rotateBitmap(Bitmap original, float degrees) {
    int width = original.getWidth();
    int height = original.getHeight();

    Matrix matrix = new Matrix();
    matrix.preRotate(degrees);

    Bitmap rotatedBitmap = Bitmap.createBitmap(original, 0, 0, width, height, matrix, true);
    Canvas canvas = new Canvas(rotatedBitmap);
    canvas.drawBitmap(original, 5.0f, 0.0f, null);