使用 ACTION_SET_WALLPAPER 设置墙纸

Question

我目前正在使用墙纸管理器设置墙纸，并向其传递一个位图，这可行，但该图像是静态的，因此它不会随屏幕移动，也没有给我裁剪图像的选项。我想在调用它的那一刻使用 ACTION_SET_WALLPAPER，它用于保存图像，但是当它尝试设置图像以裁剪它时，它给我敬酒 "failed to load image" 并返回到我的申请，

我的尝试

 Bitmap bitmap = ((BitmapDrawable) WallpaperView.getDrawable()).getBitmap();

                    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(Environment.getExternalStorageDirectory()+ File.separator +  
      "/my_tmp_file.png"),"image/jpg");
                    setAs.putExtra("mimeType", "image/jpg");
                    startActivity(Intent.createChooser(setAs, "Set Image 
                    As"));

我的代码仍然倾注于此，我的代码保存了图像，然后询问用户想要将图像设置为什么，但随后仍然崩溃，toast 无法加载图像，如果我转到文件管理器，我可以 select 我刚刚保存的图像并将其设置为墙纸没问题有人可以告诉我为什么这不起作用吗？

堆栈跟踪...

java.lang.IllegalArgumentException: URI is not absolute: /storage/emulated/0//my_tmp_file.png
        at java.net.URI.toURL(URI.java:1376)
        at com.lge.gallery.data.UriImage$JobState.openOrDownloadInner(UriImage.java:147)
        at com.lge.gallery.data.UriImage$JobState.openFileOrDownloadTempFile(UriImage.java:105)
        at com.lge.gallery.data.UriImage$JobState.prepareInputFile(UriImage.java:198)
        at com.lge.gallery.data.UriImage$BitmapJob.getBitmap(UriImage.java:256)
        at com.lge.gallery.data.UriImage$BitmapJob.run(UriImage.java:249)
        at com.lge.gallery.data.UriImage$BitmapJob.run(UriImage.java:240)
        at com.android.gallery3d.app.CropImage$LoadBitmapDataTask.run(CropImage.java:1490)
        at com.android.gallery3d.app.CropImage$LoadBitmapDataTask.run(CropImage.java:1483)
        at com.lge.gallery.util.ThreadPool$Worker.run(ThreadPool.java:167)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
        at java.lang.Thread.run(Thread.java:818)
        at 
 com.lge.gallery.util.PriorityThreadFactory.run
(PriorityThreadFactory.java:43)
07-23 00:47:26.395  26470-26470/? I/StorageStateManager﹕     
rootPath=/storage/emulated/0/ available_size=5782491136 request_size=1500000
07-23 00:47:26.395  26470-26470/? I/FloatableActivity﹕ onPostResume  
 activity=com.android.gallery3d.app.CropImage
(com.android.gallery3d.app.CropImage@149b6d72)
07-23 00:47:26.450  26470-26470/? I/FloatableActivity﹕ on attached from   
window activity=com.android.gallery3d.app.CropImage
07-23 00:47:26.530  26470-27056/? I/GalleryEGLConfigChooser﹕ Config chosen:   
 R8 G8 B8 A0 D0 S8 ID12 CAVEAT12344
07-23 00:47:26.540  26470-27056/? I/GLRootView﹕ onSurfaceChanged: 1440x2200,   
gl10: com.google.android.gles_jni.GLImpl@18efc101
07-23 00:47:26.541  26470-27056/? I/GLRootView﹕ layout content pane 1440x2200
07-23 00:47:26.568    1050-1151/? I/SystemUI[Framework]﹕   
PhoneWindowManager.updateSystemUiVisibilityLw() :visibility=0x8600,   
pkg=com.android.gallery3d
07-23 00:47:26.569    1461-1461/? I/[SystemUI]NavigationThemeResource﹕ notify   
navigation bar color(0xff000000)
07-23 00:47:26.570    1050-1151/? W/PhoneWindowManagerEx﹕   
Call!!!getLGSystemUiVisibility. =0x0
07-23 00:47:26.570    1050-1151/? I/SystemUI[Framework]﹕ ==>disabledNaviBtn()   
what=0x0, token=android.os.Binder@64e735,  pkg=WindowManager.LayoutParams 
07-23 00:47:26.570    1050-1151/? I/SystemUI[Framework]﹕ disableNaviBtn:   
mDisabledNaviBtn=0x0,  mDisableRecords.size=0
07-23 00:47:26.570    1461-1461/? I/[SystemUI]NavigationThemeResource﹕   
NavigationKey Color is changed(WHITE_WITH_SHADOW -> WHITE)
BarMode=4, Theme=BLACK, LightBackground=false (NOT Transparent)

Answer 1

经过几天的搜索，我设法使用这些人的回答解决了这个问题 here

使用 ACTION_SET_WALLPAPER 设置墙纸

set wallpaper using ACTION_SET_WALLPAPER

android

bitmap

wallpaper