How to load image from Picasso library and set it as wallpaper

Question

I received a picture from the Internet with the Picasso Library. Then I set it up on the wallpaper. But after running on my mobile, I approached the Force close. Please help me if you make a mistake in coding or please offer if suggested for work.

  Bitmap result= null;
    try {
        result = Picasso.with(getApplicationContext())
                .load("http://wallpaperswide.com/download/the_amazing_spider_man_2012_film-wallpaper-1600x900.jpg")
                .get();
    } catch (IOException e) {
        e.printStackTrace();
    }

    WallpaperManager wallpaperManager = WallpaperManager.getInstance(getApplicationContext());
    try {
        wallpaperManager.setBitmap(result);
    } catch (IOException ex) {
        ex.printStackTrace();
    }

Try using MainActivity.this instead of getApplicationContext() — Darush, Aug 06 '17 at 04:50
try this: https://stackoverflow.com/questions/29777354/how-do-i-set-background-image-with-picasso-in-code — Darush, Aug 06 '17 at 05:30

Darush · Accepted Answer · 2017-08-06T08:47:37.830

1

Suppose that you are inside MainActivity:

package com.example.myapplication;

import android.app.WallpaperManager;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Toast;

import com.squareup.picasso.Picasso;
import com.squareup.picasso.Target;

import java.io.IOException;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Picasso.with(this).load("http://wallpaperswide.com/download/the_amazing_spider_man_2012_film-wallpaper-1600x900.jpg").into(new Target(){

            @Override
            public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                WallpaperManager wallpaperManager = WallpaperManager.getInstance(MainActivity.this);
                try {
                    wallpaperManager.setBitmap(bitmap);
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
                Log.d("TAG", "onBitmapLoaded: ");
                Toast.makeText(MainActivity.this, "Wallpaper Changed", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onBitmapFailed(final Drawable errorDrawable) {
                Log.d("TAG", "FAILED");
                Toast.makeText(MainActivity.this, "Loading image failed", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onPrepareLoad(final Drawable placeHolderDrawable) {
                Log.d("TAG", "Prepare Load");
                Toast.makeText(MainActivity.this, "Downloading image", Toast.LENGTH_SHORT).show();
            }
        });

    }

}

Make sure:

you use this import import com.squareup.picasso.Target; instead of import java.lang.annotation.Target;
you give INTERNET permission and SET_WALLPAPER permission in your AndroidManifest.xml. <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.SET_WALLPAPER" />

Lastly: wait for the image to download then check your device home screen and voila!!!

edited Aug 06 '17 at 08:47

answered Aug 06 '17 at 05:32

Darush

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@nima1382na I am checking it right now. I will update my answer soon. – Darush Aug 06 '17 at 05:48
Thank you my friend – programdan Aug 06 '17 at 05:51
@nima1382na change import java.lang.annotation.Target; to import com.squareup.picasso.Target; – Darush Aug 06 '17 at 06:00
this will make the error : Error: method does not override or implement a method from a supertype – programdan Aug 06 '17 at 06:36
@nima1382na add import com.squareup.picasso.Target; at the top of your class just below package declaration. Look at the answer again and see what you have missed. I have tested it on my own phone and works perfectly. Let me know if you checked everything. – Darush Aug 06 '17 at 06:38
@nima1382na also make sure your internet is working. – Darush Aug 06 '17 at 06:40
thanks . but it did not wor . can you send me your source ? please – programdan Aug 06 '17 at 08:46
Please let me know if u find any issues – Darush Aug 06 '17 at 10:03
Thankful . Where did you send your source? :( – programdan Aug 06 '17 at 10:10
Can you sen me your source ? :( – programdan Aug 06 '17 at 10:53
@nima1382na here it is: https://github.com/DarushDev/picasso-wallpaper-test – Darush Aug 06 '17 at 11:00
Woooow Thank you so much so much. It was a long time to follow this tutorial. And thank you – programdan Aug 06 '17 at 11:34
@nima1382na Your most welcome. If that solved your problem you can mark the answer as accepted. :D...All the best.. – Darush Aug 06 '17 at 11:36
Photos are downloaded too late. Is this a normal problem? My internet speed is also good. – programdan Aug 06 '17 at 11:59
I think so.. .same thing with my internet connection...it takes about 30 seconds in my phone to download the photo and set it as wallpaper. – Darush Aug 06 '17 at 12:32
Oh . 30 seconds is too much to download a picture! Another way to download a photo faster?! – programdan Aug 06 '17 at 12:40
Checked on high speed Internet and took 7 seconds to load...so it depends on the internet connection and the server load...so u probably can't do anything about it... – Darush Aug 06 '17 at 14:27

How to load image from Picasso library and set it as wallpaper

1 Answers1