android 将图像设置为联系人图标/壁纸

发布于 2024-12-02 22:41:16 字数 1333 浏览 0 评论 0原文

我已经编写了自己的 ImageViewer,现在我想要像 Android 原生 ImageViewer 一样具有设置为功能。我现在这是可能的,因为 Facebook 已经有了它。我附上了屏幕截图以使自己更清楚。 在此处输入图像描述

PS 我想对出现的问题提供更详细的解释。在菜单中选择“联系人图标”后,会出现我的联系人列表。当我选择一个联系人时,应用程序强制关闭。如果我选择“主屏幕/锁屏壁纸”,它会打开我手机的图库。 这是我的代码片段:

                Bitmap icon = mBitmap;
                Intent setAs = new Intent(Intent.ACTION_ATTACH_DATA);
                setAs.setType("image/jpg");
                ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                icon.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
                File f = new File(Environment.getExternalStorageDirectory() + File.separator + "/my_tmp_file.jpg");
                try {
                    f.createNewFile();
                    FileOutputStream fo = new FileOutputStream(f);
                    fo.write(bytes.toByteArray());
                } catch (IOException e) {                       
                    e.printStackTrace();
                }
                setAs.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///sdcard/my_tmp_file.jpg"));
                startActivity(Intent.createChooser(setAs, "Set Image As"));

我还将后续权限添加到我的清单中,并且我能够将图像写入手机的 SD 卡。

LogCat 输出

I have written my own ImageViewer and now I want to have Set as functionality like in Android native ImageViewer. I now it is possible since Facebook has it. I've attached a screenshot to make myself more clear. enter image description here

P.S. I want to give a more detailed explanation of what goes wrong. After I choose "Contact icon" in the menu the list of my contacts appears. When I choose a contact the application force closes. If I choose "Home/Lock screen wallpaper" it opens my phone's gallery.
Here is my code snippet:

                Bitmap icon = mBitmap;
                Intent setAs = new Intent(Intent.ACTION_ATTACH_DATA);
                setAs.setType("image/jpg");
                ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                icon.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
                File f = new File(Environment.getExternalStorageDirectory() + File.separator + "/my_tmp_file.jpg");
                try {
                    f.createNewFile();
                    FileOutputStream fo = new FileOutputStream(f);
                    fo.write(bytes.toByteArray());
                } catch (IOException e) {                       
                    e.printStackTrace();
                }
                setAs.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///sdcard/my_tmp_file.jpg"));
                startActivity(Intent.createChooser(setAs, "Set Image As"));

I have also added the consequent permissions to my manifest and I am able to write my image to the sd card of the phone.

LogCat Output

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评论(5

寄与心 2024-12-09 22:41:16

来自 Google 图库应用源代码

// Called when "Set as" is clicked.
private static boolean onSetAsClicked(MenuInvoker onInvoke,
                                      final Activity activity) {
    onInvoke.run(new MenuCallback() {
        public void run(Uri u, IImage image) {
            if (u == null || image == null) {
                return;
            }

            Intent intent = Util.createSetAsIntent(image);
            activity.startActivity(Intent.createChooser(intent,
                    activity.getText(R.string.setImage)));
        }
    });
    return true;
}

来自 Utils.java

// Returns an intent which is used for "set as" menu items.
public static Intent createSetAsIntent(IImage image) {
    Uri u = image.fullSizeImageUri();
    Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
    intent.setDataAndType(u, image.getMimeType());
    intent.putExtra("mimeType", image.getMimeType());
    return intent;
}

From the Google Gallery app source code:

// Called when "Set as" is clicked.
private static boolean onSetAsClicked(MenuInvoker onInvoke,
                                      final Activity activity) {
    onInvoke.run(new MenuCallback() {
        public void run(Uri u, IImage image) {
            if (u == null || image == null) {
                return;
            }

            Intent intent = Util.createSetAsIntent(image);
            activity.startActivity(Intent.createChooser(intent,
                    activity.getText(R.string.setImage)));
        }
    });
    return true;
}

From Utils.java

// Returns an intent which is used for "set as" menu items.
public static Intent createSetAsIntent(IImage image) {
    Uri u = image.fullSizeImageUri();
    Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
    intent.setDataAndType(u, image.getMimeType());
    intent.putExtra("mimeType", image.getMimeType());
    return intent;
}
月亮邮递员 2024-12-09 22:41:16

查看联系人应用程序代码。有一个 AttachImage 活动启动用于附加图像。图标照片的尺寸应为 96x96 像素。 action...CROP 对您传递的图像进行人脸检测和裁剪。

链接:AttachImage.java

应将图像缩放并裁剪为 96x96,并将其 URI 传递给 AttachImage 中使用的 insertPhoto 方法活动。

要更改壁纸,您可以参考此问题的答案。

更新

启动裁剪活动的代码:

Intent intent = new Intent("com.android.camera.action.CROP", myIntent.getData());
if (myIntent.getStringExtra("mimeType") != null) {
   intent.setDataAndType(myIntent.getData(), myIntent.getStringExtra("mimeType"));
}
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 96);
intent.putExtra("outputY", 96);
intent.putExtra("return-data", true);
startActivityForResult(intent, REQUEST_CROP_PHOTO);

Take a look at the contacts app code. There is an AttachImage activity that launches for attaching an image. The icon photo should be 96x96 px dimension. The action...CROP does face detection and cropping on the image you pass.

Link : AttachImage.java

You should scale and crop the image to 96x96 and pass its URI to the insertPhoto method used in AttachImage activity.

For changing wallpaper you can refer this question's answer.

Update

Code for launching cropping activity:

Intent intent = new Intent("com.android.camera.action.CROP", myIntent.getData());
if (myIntent.getStringExtra("mimeType") != null) {
   intent.setDataAndType(myIntent.getData(), myIntent.getStringExtra("mimeType"));
}
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 96);
intent.putExtra("outputY", 96);
intent.putExtra("return-data", true);
startActivityForResult(intent, REQUEST_CROP_PHOTO);
爱本泡沫多脆弱 2024-12-09 22:41:16

您可以简单地使用 WallpaperManager 来设置壁纸。

WallpaperManager.getInstance(this).setBitmap(mBitmap);

You can simply use WallpaperManager to set the wallpaper.

WallpaperManager.getInstance(this).setBitmap(mBitmap);
软糯酥胸 2024-12-09 22:41:16

使用此代码

File externalFile=new File("filePath");
Uri sendUri = Uri.fromFile(externalFile);
    Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
            intent.setDataAndType(sendUri, "image/jpg");
            intent.putExtra("mimeType", "image/jpg");
            startActivityForResult(Intent.createChooser(intent, "Set As"), 200);

use this code

File externalFile=new File("filePath");
Uri sendUri = Uri.fromFile(externalFile);
    Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
            intent.setDataAndType(sendUri, "image/jpg");
            intent.putExtra("mimeType", "image/jpg");
            startActivityForResult(Intent.createChooser(intent, "Set As"), 200);
锦欢 2024-12-09 22:41:16

对于将图像设置为(联系人、壁纸等)

        Intent setAs = new Intent(Intent.ACTION_ATTACH_DATA);
        setAs.setType("image/jpg");
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
        File f = new File(Environment.getExternalStorageDirectory()
                + File.separator + "/my_tmp_file.jpg");
        try {
            f.createNewFile();
            FileOutputStream fo = new FileOutputStream(f);
            fo.write(bytes.toByteArray());
        } catch (IOException e) {
            e.printStackTrace();
        }

        setAs.setDataAndType(Uri.parse("file:///sdcard/my_tmp_file.jpg"),
                "image/jpg");
        setAs.putExtra("mimeType", "image/jpg");
        startActivity(Intent.createChooser(setAs, "Set Image As"));

这将解决您的问题并将图像设置为(联系人、壁纸等..)

For Set image as (Contact,wallpaper,etc.)

        Intent setAs = new Intent(Intent.ACTION_ATTACH_DATA);
        setAs.setType("image/jpg");
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
        File f = new File(Environment.getExternalStorageDirectory()
                + File.separator + "/my_tmp_file.jpg");
        try {
            f.createNewFile();
            FileOutputStream fo = new FileOutputStream(f);
            fo.write(bytes.toByteArray());
        } catch (IOException e) {
            e.printStackTrace();
        }

        setAs.setDataAndType(Uri.parse("file:///sdcard/my_tmp_file.jpg"),
                "image/jpg");
        setAs.putExtra("mimeType", "image/jpg");
        startActivity(Intent.createChooser(setAs, "Set Image As"));

This will solve your problem and set the image as (Contact,Wallpaper,etc..)

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