Android-Galeriden resim seçme ve duvar kağıdı yapma

Merhaba arkadaşlar

 Bugün kü yazımda android uygulaması olarak galeriden bir resim seçip , seçilen resmi telefon duvar kağıdı yapan  basit bir uygulamanın kodlarını paylaşacağım.

öncelikle manifest dosyasına gerekli izinleri ekleyelim.

<uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.SET_WALLPAPER"/>
    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.camera.autofocus" />


Kodlar :

package com.example.lenovo.setwallpaper;

import android.app.Activity;
import android.app.WallpaperManager;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

import java.io.IOException;

public class MainActivity extends Activity {

    private static final int IMAGE_PICK = 1;

      //declerations
    private ImageView imageView;    // show choosen image
    private Button buttonImage;     //choose image
    private Button buttonsetwallpaper;  //set wallpaper
    private String image_dir;         //image directory

   private  WallpaperManager myWallpaperManager;

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

               //declerations
        this.myWallpaperManager = WallpaperManager.getInstance(getApplicationContext());
        this.imageView = (ImageView) this.findViewById(R.id.imageView2);
        this.buttonImage = (Button) this.findViewById(R.id.button_from_phone);
        this.buttonsetwallpaper=(Button) this.findViewById(R.id.button_setwal);

        //image from gallery
        this.buttonImage.setOnClickListener(new ImagePickListener());

        //button set wallpaper
        this.buttonsetwallpaper.setOnClickListener(new OnClickListener() {

            public void onClick(View v)
            {
                try {
                    myWallpaperManager.setBitmap(BitmapFactory.decodeFile(image_dir));
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }


            }
        });

    }

//image from gallery
    class ImagePickListener implements OnClickListener
    {

        public void onClick(View v)
        {
            Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            intent.setType("image/*");
            startActivityForResult(Intent.createChooser(intent, "choose a image"), IMAGE_PICK);
        }
    }




    protected void onActivityResult(int requestCode, int resultCode, Intent data)
    {

        if (resultCode == Activity.RESULT_OK) {
            switch (requestCode) {
                case IMAGE_PICK:
                    this.imageFromGallery(resultCode, data);
                    break;
                default:
                    break;
            }
        }
    }


    private void imageFromGallery(int resultCode, Intent data)
    {
        Uri selectedImage = data.getData();
        String [] filePathColumn = {MediaStore.Images.Media.DATA};

        Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
        cursor.moveToFirst();

        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        String filePath = cursor.getString(columnIndex);

         this.image_dir=filePath; // image directory

        this.imageView.setImageBitmap(BitmapFactory.decodeFile(filePath));
        cursor.close();

    }



}

Ayrıca arkadaşlar bu proje ve başka proje kodlarına githubta  https://github.com/bhtyrsm 
adresinden bulabilirsiniz.

umarım faydası olur. Bir sorunuz olur ise benimle iletişime geçebilirsiniz.Kolay gelsin