废话不多说，主要代码：

public static void intent2SetWallPaper(Context context, String path) {

Uri uriPath = getUriWithPath(path);

Intent intent;

// 针对EMUI

if (RomUtil.isHuaweiRom()) {

try {

ComponentName componentName = new ComponentName("com.android.gallery3d", "com.android.gallery3d.app.Wallpaper");

intent = new Intent(Intent.ACTION_VIEW);

intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

intent.setDataAndType(uriPath, "image/*");

intent.putExtra("mimeType", "image/*");

intent.setComponent(componentName);

context.startActivity(intent);

} catch (Exception e) {

e.printStackTrace();

try {

WallpaperManager.getInstance(context.getApplicationContext()).setBitmap(ImageUtil.getImageBitmap(path));

} catch (IOException e1) {

e1.printStackTrace();

}

}

// 针对MIUI

} else if (RomUtil.isMiuiRom()) {

try {

ComponentName componentName = new ComponentName("com.android.thememanager", "com.android.thememanager.activity.WallpaperDetailActivity");

intent = new Intent("miui.intent.action.START_WALLPAPER_DETAIL");

intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

intent.setDataAndType(uriPath, "image/*");

intent.putExtra("mimeType", "image/*");

intent.setComponent(componentName);

context.startActivity(intent);

} catch (Exception e) {

e.printStackTrace();

try {

WallpaperManager.getInstance(context.getApplicationContext()).setBitmap(ImageUtil.getImageBitmap(path));

} catch (IOException e1) {

e1.printStackTrace();

}

}

// 其他

} else {

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {

context.startActivity(WallpaperManager.getInstance(context.getApplicationContext())

.getCropAndSetWallpaperIntent(getUriWithPath(path)));

} else {

try {

WallpaperManager.getInstance(context.getApplicationContext()).setBitmap(ImageUtil.getImageBitmap(path));

} catch (IOException e1) {

e1.printStackTrace();

}

}

}

}

使用方式：

1.添加依赖：

Step 1. 在你project层级的build.gradle中，添加仓库地址:

allprojects {

repositories {

...

maven { url 'https://jitpack.io' }

}

}

Step 2. 在你主module的build.gradle中添加依赖：

dependencies {

implementation 'com.github.SherlockGougou:SetWallpaper:v1.2.0'

}

2.调用代码：

SetWallpaper.setWallpaper(MainActivity.this, // 上下文

path, // 图片绝对路径

APP_AUTHORITY);// authority(7.0 文件共享权限)