在java类中使用getInstance（）

我试图使用第三方java类代码，但我得到了这个错误 无法解析方法“getInstance（）” 和 无法解析符号“注入\输入\事件\模式\等待\完成”

有人知道如何解决这个问题吗

错误图像：

/*
*版权所有（C）2007安卓开源项目
*
*根据Apache许可证2.0版（以下简称“许可证”）获得许可；
*除非遵守许可证，否则不得使用此文件。
*您可以通过以下方式获得许可证副本：
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
*除非适用法律要求或书面同意，软件
*根据许可证进行的分发是按“原样”进行分发的，
*无任何明示或暗示的保证或条件。
*请参阅许可证以了解管理权限和权限的特定语言
*许可证下的限制。
*/
导入android.hardware.input.InputManager；
导入android.os.SystemClock；
导入android.util.Log；
导入android.view.InputDevice；
导入android.view.KeyCharacterMap；
导入android.view.KeyEvent；
导入android.view.MotionEvent；
导入java.util.HashMap；
导入java.util.Map；
/**
*命令，该命令通过密钥代码或
*所需的字符输出。
*/
公共类输入{
私有静态最终字符串TAG=“Input”；
私有静态最终字符串无效_ARGUMENTS=“错误：命令的参数无效：”；
私有静态最终映射源=新HashMap（）{{
put（“键盘”，InputDevice.SOURCE\u键盘）；
put（“dpad”，InputDevice.SOURCE\u dpad）；
put（“游戏板”，InputDevice.SOURCE\u游戏板）；
put（“触摸屏”，输入设备。源\触摸屏）；
put（“鼠标”，InputDevice.SOURCE\u鼠标）；
输入（“触针”，输入设备。源（触针）；
put（“轨迹球”，InputDevice.SOURCE\u轨迹球）；
put（“触摸板”，InputDevice.SOURCE\u触摸板）；
put（“触摸导航”，输入设备。源触摸导航）；
put（“操纵杆”，输入设备。源\操纵杆）；
}};
/**
*命令行入口点。
*
*@param指定命令行参数
*/
公共静态void main（字符串[]args）{
（新输入（））.run（args）；
}
私有无效运行（字符串[]args）{
如果（参数长度<1）{
showUsage（）；
返回；
}
int指数=0；
String命令=args[index]；
int inputSource=InputDevice.SOURCE\u未知；
if（SOURCES.containsKey（命令））{
inputSource=SOURCES.get（命令）；
索引++；
command=args[index]；
}
最终整数长度=args.length-索引；
试一试{
if（command.equals（“文本”））{
如果（长度==2）{
inputSource=getSource（inputSource，InputDevice.SOURCE\U键盘）；
sendText（inputSource，args[index+1]）；
返回；
}
}else if（command.equals（“keyevent”））{
如果（长度>=2）{
最终布尔值longpress=“--longpress.”等于（args[index+1]）；
最终整数开始=longpress？索引+2：索引+1；
inputSource=getSource（inputSource，InputDevice.SOURCE\U键盘）；
如果（长度>开始）{
对于（int i=开始；i<长度；i++）{
int keyCode=KeyEvent.keyCodeFromString（args[i]）；
if（keyCode==KeyEvent.keyCode_未知）{
keyCode=KeyEvent.keyCodeFromString（“keyCode_”+args[i]）；
}
sendKeyEvent（inputSource、keyCode、longpress）；
}
返回；
}
}
}else if（command.equals（“tap”））{
如果（长度==3）{
inputSource=getSource（inputSource，InputDevice.SOURCE\U触摸屏）；
sendTap（inputSource，Float.parseFloat（args[index+1]），
parseFloat（args[index+2]）；
返回；
}
}else if（command.equals（“滑动”））{
int持续时间=-1；
inputSource=getSource（inputSource，InputDevice.SOURCE\U触摸屏）；
开关（长度）{
案例6：
duration=Integer.parseInt（args[index+5]）；
案例5：
sendSwipe（输入源，
Float.parseFloat（args[index+1]），Float.parseFloat（args[index+2]），
Float.parseFloat（args[index+3]），Float.parseFloat（args[index+4]），
持续时间）；
返回；
}
}else if（command.equals（“press”））{
inputSource=getSource（inputSource，InputDevice.SOURCE\u轨迹球）；
如果（长度==1）{
sendTap（输入源，0.0f，0.0f）；
返回；
}
}else if（命令等于（“滚动”））{
inputSource=getSource（inputSource，InputDevice.SOURCE\u轨迹球）；
如果（长度==3）{
sendMove（inputSource，Float.parseFloat（args[index+1]），
parseFloat（args[index+2]）；
返回；
}
}否则{
System.err.println（“错误：未知命令：“+命令”）；
showUsage（）；
返回；
}
}捕获（NumberFormatException ex）{
}
System.err.println（无效的参数+命令）；
showUsage（）；
}
/**
*将字符串文本的字符转换为键事件并发送到
*装置。
*
*@param text是要输入到设备的字符串。
*/
/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.hardware.input.InputManager;
import android.os.SystemClock;
import android.util.Log;
import android.view.InputDevice;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.MotionEvent;

import java.util.HashMap;
import java.util.Map;

/**
 * Command that sends key events to the device, either by their keycode, or by
 * desired character output.
 */

public class Input {
    private static final String TAG = "Input";
    private static final String INVALID_ARGUMENTS = "Error: Invalid arguments for command: ";

    private static final Map<String, Integer> SOURCES = new HashMap<String, Integer>() {{
        put("keyboard", InputDevice.SOURCE_KEYBOARD);
        put("dpad", InputDevice.SOURCE_DPAD);
        put("gamepad", InputDevice.SOURCE_GAMEPAD);
        put("touchscreen", InputDevice.SOURCE_TOUCHSCREEN);
        put("mouse", InputDevice.SOURCE_MOUSE);
        put("stylus", InputDevice.SOURCE_STYLUS);
        put("trackball", InputDevice.SOURCE_TRACKBALL);
        put("touchpad", InputDevice.SOURCE_TOUCHPAD);
        put("touchnavigation", InputDevice.SOURCE_TOUCH_NAVIGATION);
        put("joystick", InputDevice.SOURCE_JOYSTICK);
    }};


    /**
     * Command-line entry point.
     *
     * @param args The command-line arguments
     */
    public static void main(String[] args) {
        (new Input()).run(args);
    }

    private void run(String[] args) {
        if (args.length < 1) {
            showUsage();
            return;
        }

        int index = 0;
        String command = args[index];
        int inputSource = InputDevice.SOURCE_UNKNOWN;
        if (SOURCES.containsKey(command)) {
            inputSource = SOURCES.get(command);
            index++;
            command = args[index];
        }
        final int length = args.length - index;

        try {
            if (command.equals("text")) {
                if (length == 2) {
                    inputSource = getSource(inputSource, InputDevice.SOURCE_KEYBOARD);
                    sendText(inputSource, args[index+1]);
                    return;
                }
            } else if (command.equals("keyevent")) {
                if (length >= 2) {
                    final boolean longpress = "--longpress".equals(args[index + 1]);
                    final int start = longpress ? index + 2 : index + 1;
                    inputSource = getSource(inputSource, InputDevice.SOURCE_KEYBOARD);
                    if (length > start) {
                        for (int i = start; i < length; i++) {
                            int keyCode = KeyEvent.keyCodeFromString(args[i]);
                            if (keyCode == KeyEvent.KEYCODE_UNKNOWN) {
                                keyCode = KeyEvent.keyCodeFromString("KEYCODE_" + args[i]);
                            }
                            sendKeyEvent(inputSource, keyCode, longpress);
                        }
                        return;
                    }
                }
            } else if (command.equals("tap")) {
                if (length == 3) {
                    inputSource = getSource(inputSource, InputDevice.SOURCE_TOUCHSCREEN);
                    sendTap(inputSource, Float.parseFloat(args[index+1]),
                            Float.parseFloat(args[index+2]));
                    return;
                }
            } else if (command.equals("swipe")) {
                int duration = -1;
                inputSource = getSource(inputSource, InputDevice.SOURCE_TOUCHSCREEN);
                switch (length) {
                    case 6:
                        duration = Integer.parseInt(args[index+5]);
                    case 5:
                        sendSwipe(inputSource,
                                Float.parseFloat(args[index+1]), Float.parseFloat(args[index+2]),
                                Float.parseFloat(args[index+3]), Float.parseFloat(args[index+4]),
                                duration);
                        return;
                }
            } else if (command.equals("press")) {
                inputSource = getSource(inputSource, InputDevice.SOURCE_TRACKBALL);
                if (length == 1) {
                    sendTap(inputSource, 0.0f, 0.0f);
                    return;
                }
            } else if (command.equals("roll")) {
            inputSource = getSource(inputSource, InputDevice.SOURCE_TRACKBALL);
                if (length == 3) {
                    sendMove(inputSource, Float.parseFloat(args[index+1]),
                            Float.parseFloat(args[index+2]));
                    return;
                }
            } else {
                System.err.println("Error: Unknown command: " + command);
                showUsage();
                return;
            }
        } catch (NumberFormatException ex) {
        }
        System.err.println(INVALID_ARGUMENTS + command);
        showUsage();
    }

    /**
     * Convert the characters of string text into key event's and send to
     * device.
     *
     * @param text is a string of characters you want to input to the device.
     */
    private void sendText(int source, String text) {

        StringBuffer buff = new StringBuffer(text);

        boolean escapeFlag = false;
        for (int i=0; i<buff.length(); i++) {
            if (escapeFlag) {
                escapeFlag = false;
                if (buff.charAt(i) == 's') {
                    buff.setCharAt(i, ' ');
                    buff.deleteCharAt(--i);
                }
            }
            if (buff.charAt(i) == '%') {
                escapeFlag = true;
            }
        }

        char[] chars = buff.toString().toCharArray();

        KeyCharacterMap kcm = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
        KeyEvent[] events = kcm.getEvents(chars);
        for(int i = 0; i < events.length; i++) {
            KeyEvent e = events[i];
            if (source != e.getSource()) {
                e.setSource(source);
            }
            injectKeyEvent(e);
        }
    }

    private void sendKeyEvent(int inputSource, int keyCode, boolean longpress) {
        long now = SystemClock.uptimeMillis();
        injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keyCode, 0, 0,
                KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, inputSource));
        if (longpress) {
            injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keyCode, 1, 0,
                    KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_LONG_PRESS,
                    inputSource));
        }
        injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_UP, keyCode, 0, 0,
                KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, inputSource));
    }

    private void sendTap(int inputSource, float x, float y) {
        long now = SystemClock.uptimeMillis();
        injectMotionEvent(inputSource, MotionEvent.ACTION_DOWN, now, x, y, 1.0f);
        injectMotionEvent(inputSource, MotionEvent.ACTION_UP, now, x, y, 0.0f);
    }

    private void sendSwipe(int inputSource, float x1, float y1, float x2, float y2, int duration) {
        if (duration < 0) {
            duration = 300;
        }
        long now = SystemClock.uptimeMillis();
        injectMotionEvent(inputSource, MotionEvent.ACTION_DOWN, now, x1, y1, 1.0f);
        long startTime = now;
        long endTime = startTime + duration;
        while (now < endTime) {
            long elapsedTime = now - startTime;
            float alpha = (float) elapsedTime / duration;
            injectMotionEvent(inputSource, MotionEvent.ACTION_MOVE, now, lerp(x1, x2, alpha),
                    lerp(y1, y2, alpha), 1.0f);
            now = SystemClock.uptimeMillis();
        }
        injectMotionEvent(inputSource, MotionEvent.ACTION_UP, now, x2, y2, 0.0f);
    }

    /**
     * Sends a simple zero-pressure move event.
     *
     * @param inputSource the InputDevice.SOURCE_* sending the input event
     * @param dx change in x coordinate due to move
     * @param dy change in y coordinate due to move
     */
    private void sendMove(int inputSource, float dx, float dy) {
        long now = SystemClock.uptimeMillis();
        injectMotionEvent(inputSource, MotionEvent.ACTION_MOVE, now, dx, dy, 0.0f);
    }

    private void injectKeyEvent(KeyEvent event) {
        Log.i(TAG, "injectKeyEvent: " + event);
        InputManager.getInstance().injectInputEvent(event,
                InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
    }

    private int getInputDeviceId(int inputSource) {
        final int DEFAULT_DEVICE_ID = 0;
        int[] devIds = InputDevice.getDeviceIds();
        for (int devId : devIds) {
            InputDevice inputDev = InputDevice.getDevice(devId);
            if (inputDev.supportsSource(inputSource)) {
                return devId;
            }
        }
        return DEFAULT_DEVICE_ID;
    }

    /**
     * Builds a MotionEvent and injects it into the event stream.
     *
     * @param inputSource the InputDevice.SOURCE_* sending the input event
     * @param action the MotionEvent.ACTION_* for the event
     * @param when the value of SystemClock.uptimeMillis() at which the event happened
     * @param x x coordinate of event
     * @param y y coordinate of event
     * @param pressure pressure of event
     */
    private void injectMotionEvent(int inputSource, int action, long when, float x, float y, float pressure) {
        final float DEFAULT_SIZE = 1.0f;
        final int DEFAULT_META_STATE = 0;
        final float DEFAULT_PRECISION_X = 1.0f;
        final float DEFAULT_PRECISION_Y = 1.0f;
        final int DEFAULT_EDGE_FLAGS = 0;
        MotionEvent event = MotionEvent.obtain(when, when, action, x, y, pressure, DEFAULT_SIZE,
                DEFAULT_META_STATE, DEFAULT_PRECISION_X, DEFAULT_PRECISION_Y,
                getInputDeviceId(inputSource), DEFAULT_EDGE_FLAGS);
        event.setSource(inputSource);
        Log.i(TAG, "injectMotionEvent: " + event);
        InputManager.getInstance().injectInputEvent(event,
                InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
    }

    private static final float lerp(float a, float b, float alpha) {
        return (b - a) * alpha + a;
    }

    private static final int getSource(int inputSource, int defaultSource) {
        return inputSource == InputDevice.SOURCE_UNKNOWN ? defaultSource : inputSource;
    }

    private void showUsage() {
        System.err.println("Usage: input [<source>] <command> [<arg>...]");
        System.err.println();
        System.err.println("The sources are: ");
        for (String src : SOURCES.keySet()) {
            System.err.println("      " + src);
        }
        System.err.println();
        System.err.println("The commands and default sources are:");
        System.err.println("      text <string> (Default: touchscreen)");
        System.err.println("      keyevent [--longpress] <key code number or name> ..."
                + " (Default: keyboard)");
        System.err.println("      tap <x> <y> (Default: touchscreen)");
        System.err.println("      swipe <x1> <y1> <x2> <y2> [duration(ms)]"
                + " (Default: touchscreen)");
        System.err.println("      press (Default: trackball)");
        System.err.println("      roll <dx> <dy> (Default: trackball)");
    }
}