item_home_image = findViewById(R.id.item_home_image);
item_home_image.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (checkPermission()) {
final Intent intent = getIntent();
String url = intent.getStringExtra("imageUrl");
Picasso.with(PicassoDisplayImageAdapter.this).load(url).into(new Target() {
@RequiresApi(api = Build.VERSION_CODES.N)
@Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
WallpaperManager wallpaperManager = WallpaperManager.getInstance(PicassoDisplayImageAdapter.this);
try {
wallpaperManager.setBitmap(bitmap);
} catch (IOException ex) {
ex.printStackTrace();
}
Toasty.normal(PicassoDisplayImageAdapter.this, "تم تغيير الخلفية بنجاح", Toast.LENGTH_SHORT).show();
}
@Override
public void onBitmapFailed(final Drawable errorDrawable) {
Toasty.error(PicassoDisplayImageAdapter.this, "فشل تحميل الصورة", Toast.LENGTH_SHORT).show();
}
@Override
public void onPrepareLoad(final Drawable placeHolderDrawable) {
Toasty.normal(PicassoDisplayImageAdapter.this, "جاري التحميل", Toast.LENGTH_SHORT).show();
}
});
}
}
});

DisplayMetrics metrics = new DisplayMetrics(); 
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int height = metrics.heightPixels; 
int width = metrics.widthPixels;
Bitmap newBitmap = Bitmap.createScaledBitmap(bitmap, width, height, true); 
try {
wallpaperManager.setBitmap(newBitmap);
} catch (IOException e) {
e.printStackTrace();
}
</details>
# 答案2
**得分**: 1
```java
// 以下为翻译好的内容：
// 使用`wallpaperManager`设置的位图可能与**显示大小**不同，因此在传递给`wallpaperManager`之前需要对该位图进行缩放。
// 尝试以下操作：
item_home_image = findViewById(R.id.item_home_image);
item_home_image.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (checkPermission()) {
final Intent intent = getIntent();
String url = intent.getStringExtra("imageUrl");
Picasso.with(PicassoDisplayImageAdapter.this).load(url).into(new Target() {
@RequiresApi(api = Build.VERSION_CODES.N)
@Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
WallpaperManager wallpaperManager = WallpaperManager.getInstance(PicassoDisplayImageAdapter.this);
try {
int height = getResources().getDisplayMetrics().heightPixels; 
int width = getResources().getDisplayMetrics().widthPixels;
bitmap = Bitmap.createScaledBitmap(bitmap, width, height, true); 
wallpaperManager.setBitmap(bitmap);
} catch (IOException ex) {
ex.printStackTrace();
}
Toasty.normal(PicassoDisplayImageAdapter.this, "تم تغيير الخلفية بنجاح", Toast.LENGTH_SHORT).show();
}
@Override
public void onBitmapFailed(final Drawable errorDrawable) {
Toasty.error(PicassoDisplayImageAdapter.this, "فشل تحميل الصورة", Toast.LENGTH_SHORT).show();
}
@Override
public void onPrepareLoad(final Drawable placeHolderDrawable) {
Toasty.normal(PicassoDisplayImageAdapter.this, "جاري التحميل", Toast.LENGTH_SHORT).show();
}
});
}
}
});