好的,我找到了一个解决方案。首先,我们需要一个处理图像保存意图的活动,这个活动可以启动服务或其他东西。我是这样做的:
public class ShareActivity extends Activity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle extras = getIntent().getExtras();
String url = extras.getString("url");
String name = extras.getString("name");
String description = extras.getString("description");
SaveImageService.downloadFile(url, name, description);
finish();
}
}
在SaveImageService
中有一个静态方法,用于处理将图像保存到SD卡中。其次,我们需要在清单文件中添加一些文本:
<activity
android:name=".model.services.ShareActivity"
android:icon="@drawable/download_icon"
android:label="Save">
<intent-filter
android:label="Save"
android:icon="@drawable/download_icon">
<action android:name="com.my_app.random_text.SAVE_IMAGE" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="image/*"/>
</intent-filter>
</activity>
这里的意图过滤器具有自定义操作(这很重要),此自定义操作仅是某些字符串,而不是应用程序包或其它什么(我仅仅使用了应用程序包名称因为我喜欢它)。
接下来,我们需要将此活动添加到共享菜单列表:
这将从ImageView获取位图Uri以在其他应用程序中共享。
static public Uri getLocalBitmapUri(ImageView imageView) {
Drawable drawable = imageView.getDrawable();
Bitmap bmp = null;
if (drawable instanceof BitmapDrawable) {
bmp = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
} else {
return null;
}
Uri bmpUri = null;
try {
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS), "share_image_" + System.currentTimeMillis() + ".png");
file.getParentFile().mkdirs();
FileOutputStream out = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.JPEG, 80, out);
out.close();
bmpUri = Uri.fromFile(file);
} catch (IOException e) {
e.printStackTrace();
}
return bmpUri;
}
这将收集所有可以共享图像以及我们的保存图像意图的应用程序
public void shareExcludingApp(Context ctx, PhotoView snapImage) {
Uri bmpUri = ShareTool.getLocalBitmapUri(snapImage);
if (bmpUri == null) return;
List<Intent> targetedShareIntents = new ArrayList<>();
List<ResolveInfo> resInfo = ctx.getPackageManager().queryIntentActivities(createShareIntent(bmpUri), 0);
if (!resInfo.isEmpty()) {
for (ResolveInfo info : resInfo) {
Intent targetedShare = createShareIntent(bmpUri);
if (!info.activityInfo.packageName.equals(getContext().getPackageName())
&& !info.activityInfo.packageName.contains("com.android")) {
targetedShare.setPackage(info.activityInfo.packageName);
targetedShare.setClassName(
info.activityInfo.packageName,
info.activityInfo.name);
targetedShareIntents.add(targetedShare);
}
}
}
Intent targetedShare = new Intent("com.my_app.random_text.SAVE_IMAGE");
targetedShare.putExtra(Intent.EXTRA_STREAM, bmpUri);
targetedShare.setType("image/*");
targetedShare.setPackage(getContext().getPackageName());
targetedShare.putExtra("url", iSnapViewPresenter.getSnapUrlForSave());
targetedShare.putExtra("name", iSnapViewPresenter.getSnapNameForSave());
targetedShare.putExtra("description", iSnapViewPresenter.getSnapDescriptionForSave());
targetedShareIntents.add(targetedShare);
Intent chooserIntent = Intent.createChooser(targetedShareIntents.remove(0),
"Share Image");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS,
targetedShareIntents.toArray(new Parcelable[targetedShareIntents.size()]));
ctx.startActivity(chooserIntent);
}