Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, we recommend utilizing android-latest-release instead of aosp-main. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.

HandleViewDebug

public final class HandleViewDebug
extends ChunkHandler

java.lang.Object
↳	com.android.tradefed.device.server.jdwp.JdwpInterceptor
	↳	com.android.tradefed.device.server.jdwp.chunkhandler.ChunkHandler
		↳	com.android.tradefed.device.server.jdwp.chunkhandler.HandleViewDebug

Summary

Public methods
`static void`	`captureLayers(ClientImpl client, String viewRoot, DebugViewDumpHandler handler)`
`static void`	`captureView(Client client, String viewRoot, String view, DebugViewDumpHandler handler)`
`void`	`clientDisconnected(ClientImpl client)` Client has gone away.
`void`	`clientReady(ClientImpl client)` Client is ready.
`static void`	`dumpDisplayList(Client client, String viewRoot, String view)`
`static void`	`dumpTheme(ClientImpl client, String viewRoot, DebugViewDumpHandler handler)`
`static void`	`dumpViewHierarchy(Client client, String viewRoot, boolean skipChildren, boolean includeProperties, boolean useV2, DebugViewDumpHandler handler)`
`void`	`handleChunk(ClientImpl client, int type, ByteBuffer data, boolean isReply, int msgId)` Handle an incoming chunk.
`static void`	`invalidateView(ClientImpl client, String viewRoot, String view)`
`static void`	`invokeMethod(ClientImpl client, String viewRoot, String view, String method, Object... args)`
`static void`	`listViewRoots(Client client, DebugViewDumpHandler replyHandler)`
`static void`	`profileView(ClientImpl client, String viewRoot, String view, DebugViewDumpHandler handler)`
`static void`	`register(MonitorThread mt)`
`static void`	`requestLayout(ClientImpl client, String viewRoot, String view)`
`static void`	`sendStartGlTracing(ClientImpl client)`
`static void`	`sendStopGlTracing(ClientImpl client)`
`static void`	`setLayoutParameter(ClientImpl client, String viewRoot, String view, String parameter, int value)`

Public methods

captureLayers

public static void captureLayers (ClientImpl client, 
                String viewRoot, 
                DebugViewDumpHandler handler)

Parameters
`client`	`ClientImpl`
`viewRoot`	`String`
`handler`	`DebugViewDumpHandler`

captureView

public static void captureView (Client client, 
                String viewRoot, 
                String view, 
                DebugViewDumpHandler handler)

Parameters
`client`	`Client`
`viewRoot`	`String`
`view`	`String`
`handler`	`DebugViewDumpHandler`

clientDisconnected

public void clientDisconnected (ClientImpl client)

Client has gone away. Can be used to clean up any resources associated with this client connection.

Parameters
`client`	`ClientImpl`

clientReady

public void clientReady (ClientImpl client)

Client is ready. The monitor thread calls this method on all handlers when the client is determined to be DDM-aware (usually after receiving a HELO response.)

The handler can use this opportunity to initialize client-side activity. Because there's a fair chance we'll want to send a message to the client, this method can throw an IOException.

Parameters
`client`	`ClientImpl`

dumpDisplayList

public static void dumpDisplayList (Client client, 
                String viewRoot, 
                String view)

Parameters
`client`	`Client`
`viewRoot`	`String`
`view`	`String`

dumpTheme

public static void dumpTheme (ClientImpl client, 
                String viewRoot, 
                DebugViewDumpHandler handler)

Parameters
`client`	`ClientImpl`
`viewRoot`	`String`
`handler`	`DebugViewDumpHandler`

dumpViewHierarchy

public static void dumpViewHierarchy (Client client, 
                String viewRoot, 
                boolean skipChildren, 
                boolean includeProperties, 
                boolean useV2, 
                DebugViewDumpHandler handler)

Parameters
`client`	`Client`
`viewRoot`	`String`
`skipChildren`	`boolean`
`includeProperties`	`boolean`
`useV2`	`boolean`
`handler`	`DebugViewDumpHandler`

handleChunk

public void handleChunk (ClientImpl client, 
                int type, 
                ByteBuffer data, 
                boolean isReply, 
                int msgId)

Handle an incoming chunk. The data, of chunk type "type", begins at the start of "data" and continues to data.limit().

If "isReply" is set, then "msgId" will be the ID of the request we sent to the client. Otherwise, it's the ID generated by the client for this event. Note that it's possible to receive chunks in reply packets for which we are not registered.

The handler may not modify the contents of "data".

Parameters
`client`	`ClientImpl`
`type`	`int`
`data`	`ByteBuffer`
`isReply`	`boolean`
`msgId`	`int`

invalidateView

public static void invalidateView (ClientImpl client, 
                String viewRoot, 
                String view)

Parameters
`client`	`ClientImpl`
`viewRoot`	`String`
`view`	`String`

invokeMethod

public static void invokeMethod (ClientImpl client, 
                String viewRoot, 
                String view, 
                String method, 
                Object... args)

Parameters
`client`	`ClientImpl`
`viewRoot`	`String`
`view`	`String`
`method`	`String`
`args`	`Object`

listViewRoots

public static void listViewRoots (Client client, 
                DebugViewDumpHandler replyHandler)

Parameters
`client`	`Client`
`replyHandler`	`DebugViewDumpHandler`

profileView

public static void profileView (ClientImpl client, 
                String viewRoot, 
                String view, 
                DebugViewDumpHandler handler)

Parameters
`client`	`ClientImpl`
`viewRoot`	`String`
`view`	`String`
`handler`	`DebugViewDumpHandler`

register

public static void register (MonitorThread mt)

Parameters
`mt`	`MonitorThread`

requestLayout

public static void requestLayout (ClientImpl client, 
                String viewRoot, 
                String view)

Parameters
`client`	`ClientImpl`
`viewRoot`	`String`
`view`	`String`

sendStartGlTracing

public static void sendStartGlTracing (ClientImpl client)

Parameters
`client`	`ClientImpl`

sendStopGlTracing

public static void sendStopGlTracing (ClientImpl client)

Parameters
`client`	`ClientImpl`

setLayoutParameter

public static void setLayoutParameter (ClientImpl client, 
                String viewRoot, 
                String view, 
                String parameter, 
                int value)

Parameters
`client`	`ClientImpl`
`viewRoot`	`String`
`view`	`String`
`parameter`	`String`
`value`	`int`