android屏幕共享及远程控制,android屏幕共享及远程控制原理

今天用了下Vysor，可以实现屏幕共享和远程控制，并且不需要root，而且可以兼容所有版本Android，功能很是强大，反编译了，下面是根据Vysor源码精简的功能。

import android.graphics.Bitmap;

import android.graphics.Point;

import android.hardware.input.InputManager;

import android.os.Build;

import android.os.Handler;

import android.os.SystemClock;

import android.support.v4.view.InputDeviceCompat;

import android.view.InputEvent;

import android.view.KeyEvent;

import android.view.MotionEvent;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

/**

* Created by wanjian on 2017/4/4.

public class Main {

private static InputManager im;

private static Method injectInputEventMethod;

private static long downTime;

public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException, FileNotFoundException {

if ("screenshot".equals(args[0])) {

screenShot();

return;

}

initEvent();

if ("home".equals(args[0])) {

System.out.println("home");

pressHome();

return;

}

if ("touch".equals(args[0])) {

System.out.println("slide");

slideScreen();

return;

}

if ("back".equals(args[0])) {

System.out.println("back");

back();

return;

}

private static void screenShot() throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException, FileNotFoundException {

System.out.println("started screenshot");

Point size = new Point();

size.x = 1080;

size.y = 1920;

String surfaceClassName;

if (Build.VERSION.SDK_INT <= 17) {

surfaceClassName = "android.view.Surface";

} else {

surfaceClassName = "android.view.SurfaceControl";

}

Bitmap b = (Bitmap) Class.forName(surfaceClassName).getDeclaredMethod("screenshot", new Class[]{Integer.TYPE, Integer.TYPE}).invoke(null, new Object[]{Integer.valueOf(size.x), Integer.valueOf(size.y)});

System.out.println(b);

File file = new File("/sdcard/myscreenshot");

if (!file.exists()) {

file.mkdirs();

}

b.compress(Bitmap.CompressFormat.JPEG, 60, new FileOutputStream(new File(file, System.currentTimeMillis() + ".jpg")));

System.out.println("finished " + file.getAbsolutePath());

}

private static void back() throws InvocationTargetException, IllegalAccessException {

sendKeyEvent(im, injectInputEventMethod, InputDeviceCompat.SOURCE_KEYBOARD, 4, false);

}

private static void slideScreen() throws InvocationTargetException, IllegalAccessException {

final float clientX = 900;

final float clientY = 200;

touchDown(clientX, clientY);

final Handler handler = new Handler();

handler.postDelayed(new Runnable() {

int i = 0;

float mClientX = clientX;

@Override

public void run() {

if (i++ > 300) {

try {

touchUp(mClientX, clientY);

} catch (Exception e) {

e.printStackTrace();

}

return;

}

mClientX -= 3;

try {

touchMove(mClientX, clientY);

} catch (Exception e) {

e.printStackTrace();

}

handler.postDelayed(this, 10);

}

}, 10);

}

private static void touchUp(float clientX, float clientY) throws InvocationTargetException, IllegalAccessException {

injectMotionEvent(im, injectInputEventMethod, InputDeviceCompat.SOURCE_TOUCHSCREEN, 1, downTime, SystemClock.uptimeMillis() - downTime, clientX, clientY, 1.0f);

}

private static void touchMove(float clientX, float clientY) throws InvocationTargetException, IllegalAccessException {

injectMotionEvent(im, injectInputEventMethod, InputDeviceCompat.SOURCE_TOUCHSCREEN, 2, downTime, SystemClock.uptimeMillis() - downTime, clientX, clientY, 1.0f);

}

private static void touchDown(float clientX, float clientY) throws InvocationTargetException, IllegalAccessException {

downTime = SystemClock.uptimeMillis();

injectMotionEvent(im, injectInputEventMethod, InputDeviceCompat.SOURCE_TOUCHSCREEN, 0, downTime, downTime, clientX, clientY, 1.0f);

}

private static void pressHome() throws InvocationTargetException, IllegalAccessException {

//home键

sendKeyEvent(im, injectInputEventMethod, InputDeviceCompat.SOURCE_KEYBOARD, 3, false);

}

private static void initEvent() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {

im = (InputManager) InputManager.class.getDeclaredMethod("getInstance", new Class[0]).invoke(null, new Object[0]);

MotionEvent.class.getDeclaredMethod("obtain", new Class[0]).setAccessible(true);

injectInputEventMethod = InputManager.class.getMethod("injectInputEvent", new Class[]{InputEvent.class, Integer.TYPE});

}

private static void injectMotionEvent(InputManager im, Method injectInputEventMethod, int inputSource, int action, long downTime, long eventTime, float x, float y, float pressure) throws InvocationTargetException, IllegalAccessException {

MotionEvent event = MotionEvent.obtain(downTime, eventTime, action, x, y, pressure, 1.0f, 0, 1.0f, 1.0f, 0, 0);

event.setSource(inputSource);

injectInputEventMethod.invoke(im, new Object[]{event, Integer.valueOf(0)});

}

private static void injectKeyEvent(InputManager im, Method injectInputEventMethod, KeyEvent event) throws InvocationTargetException, IllegalAccessException {

injectInputEventMethod.invoke(im, new Object[]{event, Integer.valueOf(0)});

}

private static void sendKeyEvent(InputManager im, Method injectInputEventMethod, int inputSource, int keyCode, boolean shift) throws InvocationTargetException, IllegalAccessException {

long now = SystemClock.uptimeMillis();

int meta = shift ? 1 : 0;

injectKeyEvent(im, injectInputEventMethod, new KeyEvent(now, now, 0, keyCode, 0, meta, -1, 0, 0, inputSource));

injectKeyEvent(im, injectInputEventMethod, new KeyEvent(now, now, 1, keyCode, 0, meta, -1, 0, 0, inputSource));

}

首先把这端代码编译成class文件，然后转成dex文件

dx --dex --output=Main.dex Main.class

把转换好的dex文件发送到手机上

adb push Main.dex /sdcard/Main.dex

进入shell

adb shell

执行命令

export CLASSPATH=/sdcard/Main.dex

执行截屏命令，执行后会放到/sdcard/myscreenshot文件夹下，vysor就是通过不停的截屏实现的屏幕共享

exec app_process /sdcard Main screenshot

执行按下home按键

exec app_process /sdcard Main home

执行按下返回按键

exec app_process /sdcard Main back

执行触屏事件

exec app_process /sdcard Main touch

完整命令如下：

MGJwanjian:sss wanjian$ dx --dex --output=Main.dex Main.class

MGJwanjian:sss wanjian$ adb push Main.dex /sdcard/Main.dex

[100%] /sdcard/Main.dex

MGJwanjian:sss wanjian$ adb shell