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我目前有幾張從MySQL數據庫服務器拉出並顯示在我的應用中的圖像（尺寸全部爲100x100，非常小）。一切工作，並按我的意願行事。但是，我注意到，當我將圖像分享給WhatsApp，Messenger或其他社交媒體應用程序（我的應用程序中有按鈕共享圖像）時，圖像被炸燬，好像它們太小而無法共享，所以社交媒體應用程序調整它們的大小 - 這使得圖像像素化，因爲原始尺寸是100x100。在共享之前調整圖像大小（插入畫布）
爲了避免圖像被調整大小，我有一個想法，但不知道它的可能性或如何去做。在共享期間可以將原始圖像放置在尺寸爲300x300的白色畫布上嗎？這樣圖像將是300x300，但有一個白色的背景，並希望分享適當，而不被調整。
CardPreviewActivity
public class CardPreviewActivity extends AppCompatActivity {
BottomSheetLayout bottomSheetLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.preview_activity);
final SuperHero superHero = App.self.previewRequestedSuperHeroObject;
// SET IMAGE
ImageLoader imageLoader = CustomVolleyRequest.getInstance(this).getImageLoader();
NetworkImageView heroPreviewImg = (NetworkImageView) findViewById(R.id.imageViewHero);
heroPreviewImg.setImageUrl(superHero.getImageUrl(), imageLoader);
// SET NAME
TextView heroName = (TextView) findViewById(R.id.preview_super_hero_name);
heroName.setText("Name: " + superHero.getName());
// SET DIRECTLINK
TextView heroDirectLink = (TextView) findViewById(R.id.preview_super_hero_directlink);
heroDirectLink.setText("Direct link: " + superHero.getDirectLink());
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setTitle(superHero.getName()); // set the top title
bottomSheetLayout = (BottomSheetLayout) findViewById(R.id.bottomsheet);
//SET SAVE SHARE BUTTON TEXT
TextView heroName2 = (TextView) findViewById(R.id.btn_custom_view);
heroName2.setText("Share " + superHero.getName());
}
<code>
public void onClick(View view) {
switch (view.getId()) {
case R.id.btn_custom_view:
bottomSheetLayout.showWithSheetView(getLayoutInflater().inflate(R.layout.bottomsheet, bottomSheetLayout, false));
break;
// case R.id.btn_save_face:
// break;
case R.id.btn_share_face:
ImageView imageView = (ImageView) findViewById(R.id.imageViewHero);
Drawable mDrawable = imageView.getDrawable();
Bitmap mBitmap = ((BitmapDrawable)mDrawable).getBitmap();
String path = MediaStore.Images.Media.insertImage(getContentResolver(),
mBitmap, "face", null);
Uri uri = Uri.parse(path);
final SuperHero superHero = App.self.previewRequestedSuperHeroObject;
String url = superHero.getImageUrl();
String name = superHero.getName();
final Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
shareIntent.setType("image/*");
IntentPickerSheetView intentPickerSheetView = new IntentPickerSheetView(CardPreviewActivity.this, shareIntent, ("Share " + superHero.getName()), new IntentPickerSheetView.OnIntentPickedListener() {
@Override
public void onIntentPicked(IntentPickerSheetView.ActivityInfo activityInfo) {
bottomSheetLayout.dismissSheet();
startActivity(activityInfo.getConcreteIntent(shareIntent));
}
});
bottomSheetLayout.showWithSheetView(intentPickerSheetView);
break;
case R.id.btn_copy_direct_link:
final SuperHero superHero2 = App.self.previewRequestedSuperHeroObject;
ClipboardManager clipboard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
ClipData clip = ClipData.newPlainText("face direct link", superHero2.getDirectLink());
clipboard.setPrimaryClip(clip);
// Toast.makeText(getApplicationContext(), ("Copied " + superHero2.getName() + " URL to the clipboard"), Toast.LENGTH_SHORT).show();
bottomSheetLayout.dismissSheet();
Snackbar.make(view, "Copied " + superHero2.getName() + "'s URL to the clipboard", Snackbar.LENGTH_LONG)
.setAction("Action", null)
.show();
break;
case R.id.btn_copy_direct_link_with_tags:
final SuperHero superHero3 = App.self.previewRequestedSuperHeroObject;
ClipboardManager clipboard2 = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
ClipData clip2 = ClipData.newPlainText("face direct link with image tags", ("[img]" + superHero3.getDirectLink() + "[/img]"));
clipboard2.setPrimaryClip(clip2);
// Toast.makeText(getApplicationContext(), ("Copied " + superHero3.getName() + " URL to the clipboard with IMG tags"), Toast.LENGTH_SHORT).show();
bottomSheetLayout.dismissSheet();
Snackbar.make(view, "Copied " + superHero3.getName() + "'s URL to the clipboard with IMG tags", Snackbar.LENGTH_LONG)
.setAction("Action", null)
.show();
break;
}
}
//Add back button to go back
@Override
public void onBackPressed() {
super.onBackPressed();
overridePendingTransition(R.anim.activity_back_in, R.anim.activity_back_out);
}
public boolean onSupportNavigateUp() {
finish();
overridePendingTransition(R.anim.activity_back_in, R.anim.activity_back_out);
return true;
}
}