android-为手机设置全局代理

有这么一个需求，需要给手机设置全局代理。百度到的结果都是设置后，如果需要清除代理的话，需要重启手机，这里使用的方式是不需要重启的方式后

 实现方式如下：

设置代理:

String[] strings = {"settings put global http_proxy " + ip + ":" + port};
                    ShellUtils.CommandResult commandResult2 = ShellUtils.execCmd(strings, false, true);

直接使用adb shell命令设置，需要权限

<uses-permission android:name="android.permission.ACCESS_CONTENT_PROVIDERS_EXTERNALLY" />

    <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />

使用该权限时，需要给应用系统签名

清除代理：

String[] strings = {"settings put global http_proxy :0"};
ShellUtils.CommandResult commandResult2 = ShellUtils.execCmd(strings, false, true);

附上shellutiils代码

package com.sh.util.downloadlib.util;

import android.text.TextUtils;
import android.util.Log;

import java.io.BufferedReader;
import java.io.Closeable;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;

/**
 * <pre>
 *     author: carden
 * </pre>
 */
public final class ShellUtils {

    private ShellUtils() {
        throw new UnsupportedOperationException("u can't instantiate me...");
    }

    /**
     * 是否是在root下执行命令
     *
     * @param command 命令
     * @param isRoot  是否需要root权限执行
     * @return CommandResult
     */
    public static CommandResult execCmd(String command, boolean isRoot) {
        return execCmd(new String[]{command}, isRoot, true);
    }

    /**
     * 是否是在root下执行命令
     *
     * @param commands 多条命令链表
     * @param isRoot   是否需要root权限执行
     * @return CommandResult
     */
    public static CommandResult execCmd(List<String> commands, boolean isRoot) {
        return execCmd(commands == null ? null : commands.toArray(new String[]{}), isRoot, true);
    }

    /**
     * 是否是在root下执行命令
     *
     * @param commands 多条命令数组
     * @param isRoot   是否需要root权限执行
     * @return CommandResult
     */
    public static CommandResult execCmd(String[] commands, boolean isRoot) {
        return execCmd(commands, isRoot, true);
    }

    /**
     * 是否是在root下执行命令
     *
     * @param command         命令
     * @param isRoot          是否需要root权限执行
     * @param isNeedResultMsg 是否需要结果消息
     * @return CommandResult
     */
    public static CommandResult execCmd(String command, boolean isRoot, boolean isNeedResultMsg) {
        return execCmd(new String[]{command}, isRoot, isNeedResultMsg);
    }

    /**
     * 是否是在root下执行命令
     *
     * @param commands        命令链表
     * @param isRoot          是否需要root权限执行
     * @param isNeedResultMsg 是否需要结果消息
     * @return CommandResult
     */
    public static CommandResult execCmd(List<String> commands, boolean isRoot, boolean isNeedResultMsg) {
        return execCmd(commands == null ? null : commands.toArray(new String[]{}), isRoot, isNeedResultMsg);
    }

    /**
     * 是否是在root下执行命令
     *
     * @param commands        命令数组
     * @param isRoot          是否需要root权限执行
     * @param isNeedResultMsg 是否需要结果消息
     * @return CommandResult
     */
    public static CommandResult execCmd(String[] commands, boolean isRoot, boolean isNeedResultMsg) {
        int result = -1;
        if (commands == null || commands.length == 0) {
            return new CommandResult(result, null, null);
        }

        Process process = null;
        BufferedReader successResult = null;
        BufferedReader errorResult = null;
        StringBuilder successMsg = null;
        StringBuilder errorMsg = null;
        DataOutputStream os = null;
        try {
            process = Runtime.getRuntime().exec(isRoot ? "su" : "sh");
            os = new DataOutputStream(process.getOutputStream());
            for (String command : commands) {
                if (command == null) continue;
                os.write(command.getBytes());
                os.writeBytes("\n");
                os.flush();
            }
            os.writeBytes("exit\n");
            os.flush();
            result = process.waitFor();
            if (isNeedResultMsg) {
                successMsg = new StringBuilder();
                errorMsg = new StringBuilder();
                successResult = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8"));
                errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8"));
                String s;
                while ((s = successResult.readLine()) != null) {
                    successMsg.append(s);
                }
                while ((s = errorResult.readLine()) != null) {
                    errorMsg.append(s);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            Log.e("***",e.getMessage());
        } finally {
          closeIO(os, successResult, errorResult);
            if (process != null) {
                process.destroy();
            }
        }
        return new CommandResult(
                result,
                successMsg == null ? null : successMsg.toString(),
                errorMsg == null ? null : errorMsg.toString()
        );
    }
    public static void closeIO(Closeable... closeables) {
        if (closeables == null) return;
        for (Closeable closeable : closeables) {
            if (closeable != null) {
                try {
                    closeable.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    /**
     * 返回的命令结果
     */
    public static class CommandResult {
        /**
         * 结果码
         **/
        public int    result;
        /**
         * 成功信息
         **/
        public String successMsg;
        /**
         * 错误信息
         **/
        public String errorMsg;

        public CommandResult(int result, String successMsg, String errorMsg) {
            this.result = result;
            this.successMsg = successMsg;
            this.errorMsg = errorMsg;
        }

        @Override
        public String toString() {
            return "CommandResult{" +
                    "result=" + result +
                    ", successMsg='" + successMsg + '\'' +
                    ", errorMsg='" + errorMsg + '\'' +
                    '}';
        }
    }

    public static String[] getHideShell(String shells) {

        String[] c_shells = null;
        if (!TextUtils.isEmpty(shells)) {
            return null;
        }
        if (!shells.contains("#")) {
            c_shells = new String[1];
            for (int i = 0; i < c_shells.length; i++) {
                c_shells[i] = shells;
            }
            return c_shells;
        } else {
            String strs[] = shells.split("#");
            c_shells = new String[strs.length];
            for (int i = 0; i < strs.length; i++) {
                c_shells[i] =strs[i];
            }
            return c_shells;
        }

    }
}

 

thanks