i am new to android development. I am use the following code to set the wallpaper to every home screen. In this code first it ll ask the user to enter the home screen availability numbers.
The user giving the input that they are having 3 home screen means it will ask them to select three wallpapers from sdcard and i am get that three images and change it to device default screen size and combine that bitmap images and set it as a home screen wall paper.
public void onCreate(Bundle savedInstanceState) {
Display display = getWindowManager().getDefaultDisplay();
dwidth = display.getWidth();
dheight = display.getHeight();
super.onCreate(savedInstanceState);
setContentView(R.layout.main1);
Log.i("WALLPAPER", "" + dwidth);
Log.i("WALLPAPER", "" + dheight);
width1 = dwidth;
height1 = dheight;
scno = (EditText) findViewById(R.id.screenno);
image = (ImageView) findViewById(R.id.imageview1);
wallpaper=(Button) findViewById(R.id.setwallpaper);
selectimage = (Button) findViewById(R.id.selectimg);
selectimage.setVisibility(View.VISIBLE);
selectimage.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(scno.getText().toString().length()<=0){
Toast.makeText(getApplicationContext(),"Enter The number Of Screen",Toast.LENGTH_LONG).show();
}
else{
nmscreen = scno.getText().toString();
noofscreen = Integer.parseInt(nmscreen);
Log.i("WALLPAPERDEMO", "" + noofscreen);
Intent intent1=new Intent();
intent1.setType("image/*");
intent1.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent1, "Complete action using"), PICK_FROM_FILE);
}
}
});
wallpaper.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(scno.getText().toString().length()<=0){
Toast.makeText(getApplicationContext(),"Enter The Number Of Screen",Toast.LENGTH_LONG).show();
}
else{
WallpaperManager mywallpapermanager=WallpaperManager.getInstance(getApplicationContext());
try{
mywallpapermanager.setBitmap(change);
selectimage.setEnabled(true);
}catch (IOException e) {
// TODO: handle exception
e.printStackTrace();
}
image.setImageBitmap(null);
scno.setText("");
}
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK)return;
Log.d("WALLPAPERDEMO", "Count: " + count);
switch (requestCode) {
case PICK_FROM_FILE:
mImageCaptureUri = data.getData();
Log.i("WALLPAPERDEMO","Calling doCrop() "+mImageCaptureUri.toString());
doCrop();
break;
case CROP_FROM_CAMERA:
Bundle extras = data.getExtras();
if (extras != null) {
photo = extras.getParcelable("data");
Log.d("WALLPAPERDEMO",""+photo.getWidth());
Log.d("WALLPAPERDEMO",""+photo.getWidth());
bitmapArray.add(photo);
count++;
Log.d("WALLPAPERDEMO","Count"+count);
if(count<noofscreen){
Log.d("WALLPAPERDEMO","Outside Switch"+count);
Intent intent1=new Intent();
intent1.setType("image/*");
intent1.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent1, "Complete action using"), PICK_FROM_FILE);
}else{
firstimage = new Bitmap[count];
for (i = 0; i <count; i++) {
firstimage[i] = bitmapArray.get(i);
}
setImage(firstimage);
selectimage.setEnabled(false);
}
File f = new File(mImageCaptureUri.getPath());
if (f.exists()) f.delete();
break;
}
}
}
private void setImage(Bitmap[] firstimage) {
change = Bitmap.createScaledBitmap(firstimage[0], width1, height1, true);
for(int i=1;i<firstimage.length;i++){
Log.d("WALLPAPERDEMO", "" + firstimage[i].getWidth());
Log.d("WALLPAPERDEMO", "change " + change.getWidth());
change1 = Bitmap.createScaledBitmap(firstimage[i], width1, height1, true);
Log.d("WALLPAPERDEMO", "change1 " + change1.getWidth());
change = combineImages(change, change1);
Log.d("WALLPAPERDEMO", ""+change.getWidth());
}
image.setImageBitmap(change);
}
public Bitmap combineImages(Bitmap change1, Bitmap change) {
Bitmap cs = null;
int width, height = 0;
if (change1.getWidth() > change.getWidth()) {
width = change1.getWidth() + change.getWidth();
height = change1.getHeight();
} else {
width = change.getWidth() + change1.getWidth();
height = change.getHeight();
}
cs = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas comboImage = new Canvas(cs);
comboImage.drawBitmap(change, 0f, 0f, null);
comboImage.drawBitmap(change1, change.getWidth(), 0f, null);
return cs;
}
I am run this application and check it with the real device for some of the devices its working perfectly. But in some devices the screen size is not fitted. what is the problem in my code. I am getting the default screen size of the device and for combining images i am change the selected bitmap images into default screen size then only combine the image and set it as a wallpaper.
Please help me to set a wallpaper to every home screen. Thanks in advance.
xlarge screens are at least 960dp x 720dp
large screens are at least 640dp x 480dp
normal screens are at least 470dp x 320dp
small screens are at least 426dp x 320dp
Save your resource in this folder.