Log工具类

import android.util.Log;

public class Logger {

    private static final boolean IS_PRINT_LOG = true;

    private static final String TAG = "Logger";

    private static String logFormat(String args) {
        StackTraceElement stackTrace = Thread.currentThread().getStackTrace()[4];

        return "(" +
                stackTrace.getFileName() +
                ":" +
                stackTrace.getLineNumber() +
                ")" +
                "#" +
                stackTrace.getMethodName() +
                ":" +
                args;
    }

    public static void v(String tag, String messages) {
        if (IS_PRINT_LOG) {
            Log.v(tag, logFormat(messages));
        }
    }

    public static void v(String messages) {
        if (IS_PRINT_LOG) {
            Log.v(TAG, logFormat(messages));
        }
    }

    public static void d(String tag, String messages) {
        if (IS_PRINT_LOG) {
            Log.d(tag, logFormat(messages));
        }
    }

    public static void d( String messages) {
        if (IS_PRINT_LOG) {
            Log.d(TAG, logFormat(messages));
        }
    }

    public static void i(String tag, String messages) {
        if (IS_PRINT_LOG) {
            Log.i(tag, logFormat(messages));
        }
    }

    public static void i( String messages) {
        if (IS_PRINT_LOG) {
            Log.i(TAG, logFormat(messages));
        }
    }

    public static void e(String tag, String messages) {
        if (IS_PRINT_LOG) {
            Log.e(tag, logFormat(messages));
        }
    }

    public static void e(String messages) {
        if (IS_PRINT_LOG) {
            Log.e(TAG, logFormat(messages));
        }
    }

    public static void w(String tag, String messages) {
        if (IS_PRINT_LOG) {
            Log.w(tag, logFormat(messages));
        }
    }

    public static void w(String messages) {
        if (IS_PRINT_LOG) {
            Log.w(TAG, logFormat(messages));
        }
    }

    public static void log(String str) {
        if (IS_PRINT_LOG) {
            System.out.print(str + "\n");
        }
    }
}