1. Inject assembly reference, namespace: StardewModdingAPI

2.Modify class StardewValley.Game1, modify constructor method£¬insert Instructions at beginning:
newobj	System.Void SMDroid.ModEntry::.ctor()
stsfld	StardewValley.ModHooks StardewValley.Game1::hooks

3.Modify class StardewValley.ModHooks, inject method:
	public virtual void OnGame1_Update(GameTime time);
	public virtual void OnGame1_Draw(GameTime time, RenderTarget2D toBuffer);
	public virtual LocalizedContentManager OnGame1_CreateContentManager(IServiceProvider serviceProvider, string rootDirectory) => null;

4.Modify class StardewValley.Game1, modify method  Update(GameTime gameTime), insert Instructions at beginning:
ldsfld	StardewValley.ModHooks StardewValley.Game1::hooks
ldarg.1	
callvirt	System.Void StardewValley.ModHooks::OnGame1_Update(Microsoft.Xna.Framework.GameTime)

5.Modify class StardewValley.Game1, modify method  CreateContentManager(GameTime gameTime), replace Instructions to:
ldsfld	StardewValley.ModHooks StardewValley.Game1::hooks
ldarg.1	
ldarg.2	
callvirt	StardewValley.LocalizedContentManager StardewValley.ModHooks::OnGame1_CreateContentManager(System.IServiceProvider,System.String)
ret	

6.Modify class StardewValley.Game1, modify method  Draw(GameTime gameTime, RenderTarget2D toBuffer), modify Instructions at beginning:
ldsfld	StardewValley.ModHooks StardewValley.Game1::hooks
ldarg.1	
ldnull	
callvirt	System.Void StardewValley.ModHooks::OnGame1_Draw(Microsoft.Xna.Framework.GameTime,Microsoft.Xna.Framework.Graphics.RenderTarget2D)


Optional Section

Fix back button£º

Modify class StardewValley.Game1, modify method  updateAndroidMenus(), modify Instructions at beginning:
ldsfld	StardewValley.InputState StardewValley.Game1::input
callvirt	Microsoft.Xna.Framework.Input.GamePadState StardewValley.InputState::GetGamePadState()



Json Asset Support£º

Modify class StardewValley.Object, modify method checkForAction,insert instructions at beginning:
ldsfld	StardewValley.ModHooks StardewValley.Game1::hooks
ldarg.0	
callvirt	System.Boolean StardewValley.ModHooks::OnObject_checkForAction(StardewValley.Object)
brtrue.s	-> (6) ldarg.2 
ldc.i4.0	
ret	

modify method isIndexOkForBasicShippedCategory,replace instructions:
ldarg.0	
ldc.i4	434
bne.un.s	-> (5) ldsfld StardewValley.ModHooks StardewValley.Game1::hooks
ldc.i4.0	
ret	
ldsfld	StardewValley.ModHooks StardewValley.Game1::hooks
ldarg.0	
ldloca.s	-> (0) (System.Boolean)
callvirt	System.Void StardewValley.ModHooks::OnObject_isIndexOkForBasicShippedCategory(System.Int32,System.Boolean&)
ldloc.0	
ret

modify method canBePlacedHere insert instructions at beginning:
ldsfld	StardewValley.ModHooks StardewValley.Game1::hooks
ldarg.0	
ldarg.1	
ldarg.2	
ldloca.s	-> (1) (System.Boolean)
callvirt	System.Boolean StardewValley.ModHooks::OnObject_canBePlacedHere(StardewValley.Object,StardewValley.GameLocation,Microsoft.Xna.Framework.Vector2,System.Boolean&)
brtrue.s	-> (9) ldarg.1 
ldloc.1	
ret