Android 单字阅读

  1 package com.desmand.screencapture;
  2 
  3 import android.app.Activity;
  4 import android.content.Intent;
  5 import android.os.Bundle;
  6 import android.os.Environment;
  7 import android.os.Handler;
  8 import android.os.Message;
  9 import android.util.Log;
 10 import android.view.KeyEvent;
 11 import android.view.View;
 12 import android.widget.Button;
 13 import android.widget.TextView;
 14 import android.widget.Toast;
 15 
 16 import java.io.BufferedInputStream;
 17 import java.io.BufferedReader;
 18 import java.io.File;
 19 import java.io.FileInputStream;
 20 import java.io.IOException;
 21 import java.io.InputStreamReader;
 22 import java.util.regex.Matcher;
 23 import java.util.regex.Pattern;
 24 
 25 public class MainActivity extends Activity implements View.OnClickListener, Runnable {
 26 
 27     private static String TAG = "ScreenCapture";
 28     Thread showTextThread;
 29     Button start_service_btn;
 30     private TextView show_text_tv;
 31     private String readerString;
 32     private String file_path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Panasonic/";
 33     private String fileName = file_path + "test.txt";
 34     private char testChar;
 35 
 36     private boolean isRun;
 37 
 38 
 39     @Override
 40     protected void onCreate(Bundle savedInstanceState) {
 41         super.onCreate(null);
 42 
 43         startService(new Intent(this, ScreenCaptureService.class));
 44         this.finish();
 45 
 46 //        super.onCreate(savedInstanceState);
 47         setContentView(R.layout.activity_main);
 48 
 49         start_service_btn = (Button) findViewById(R.id.start_service_btn);
 50         start_service_btn.setOnClickListener(this);
 51         show_text_tv = (TextView) findViewById(R.id.show_text_tv);
 52 
 53         showTextThread = new Thread(this);
 54 
 55         File filePath = new File(file_path);
 56         if (!filePath.exists()) {
 57             Log.i(TAG, "----------ERROR----------");
 58         }
 59     }
 60 
 61     Handler myHandler = new Handler() {
 62         public void handleMessage(Message msg) {
 63             show_text_tv.setText(String.valueOf(testChar));
 64             super.handleMessage(msg);
 65         }
 66     };
 67 
 68     @Override
 69     public void onClick(View v) {
 70         switch (v.getId()) {
 71             case R.id.start_service_btn:
 72                 if (showTextThread.isAlive()) {
 73                     isRun = false;
 74                     showTextThread.interrupt();
 75                 }
 76                 showTextThread = new Thread(this);
 77                 showTextThread.start();
 78                 isRun = true;
 79 
 80 //                startService(new Intent(this, ScreenCaptureService.class));
 81 //                this.finish();
 82                 break;
 83             default:
 84                 break;
 85         }
 86     }
 87 
 88     @Override
 89     public void run() {
 90 //        List<String> lines = new ArrayList<>();
 91 //        BufferedReader br = null;
 92 //        try {
 93 //            File file = new File(fileName);
 94 //            InputStream inputStream = new FileInputStream(file);
 95 //            Reader reader = new InputStreamReader(inputStream, "GBK");
 96 //            br = new BufferedReader(reader);
 97 //        } catch (UnsupportedEncodingException | FileNotFoundException e) {
 98 //            e.printStackTrace();
 99 //        }
100 //
101 //        try {
102 //            while ((readerString = br.readLine()) != null) {
103 //                lines.add(readerString);
104 //                myHandler.sendEmptyMessage(0);
105 //                Log.i(TAG, readerString);
106 //                Thread.sleep(200);
107 //            }
108 //            br.close();
109 //        } catch (IOException | InterruptedException e) {
110 //            e.printStackTrace();
111 //        }
112 
113 
114         File file = new File(fileName);
115         BufferedReader reader;
116         String text = "";
117         try {
118             FileInputStream fis = new FileInputStream(file);
119             BufferedInputStream in = new BufferedInputStream(fis);
120             in.mark(4);
121             byte[] first3bytes = new byte[3];
122             in.read(first3bytes);//找到文档的前三个字节并自动判断文档类型。
123             in.reset();
124             if (first3bytes[0] == (byte) 0xEF && first3bytes[1] == (byte) 0xBB && first3bytes[2] == (byte) 0xBF) {// utf-8
125                 reader = new BufferedReader(new InputStreamReader(in, "utf-8"));
126             } else if (first3bytes[0] == (byte) 0xFF && first3bytes[1] == (byte) 0xFE) {
127                 reader = new BufferedReader(new InputStreamReader(in, "unicode"));
128             } else if (first3bytes[0] == (byte) 0xFE && first3bytes[1] == (byte) 0xFF) {
129                 reader = new BufferedReader(new InputStreamReader(in, "utf-16be"));
130             } else if (first3bytes[0] == (byte) 0xFF && first3bytes[1] == (byte) 0xFF) {
131                 reader = new BufferedReader(new InputStreamReader(in, "utf-16le"));
132             } else {
133                 reader = new BufferedReader(new InputStreamReader(in, "GBK"));
134             }
135 
136             readerString = reader.readLine();
137             while (readerString != null) {
138                 if (isRun) {
139                     for (int i = 0; i < readerString.length(); i++) {// 遍历字符串每一个字符
140 
141                         // 使用正则表达式判断字符是否属于汉字编码
142                         Pattern p = Pattern.compile("[\u4e00-\u9fa5]");
143                         Matcher m = p.matcher(readerString);
144                         if (m.find()) {// 如果是汉字
145                             testChar = readerString.charAt(i);
146                             Log.i(TAG, "testChar: " + testChar);
147                             myHandler.sendEmptyMessage(0);
148                         }
149 
150                         Thread.sleep(300);
151 
152 //                    String[] splitStr = readerString.split("[\\s,.;。，；]");
153 //                    for (String str : splitStr) {
154 //                        if (!str.trim().equals("")) {
155 //                            testChar = str.trim();
156 //                            Log.i(TAG, "testChar: " + testChar);
157 //                            myHandler.sendEmptyMessage(0);
158 //                            Thread.sleep(400);
159 //                        }
160 //                    }
161 
162 //                    StringBuffer english = new StringBuffer();
163 //                    String regex = "[^\u4e00-\u9fa5。，？”“《》：！——-、]";
164 //                    Pattern pattern = Pattern.compile(regex);
165 //                    Matcher matcher = pattern.matcher(readerString);
166 //                    while (matcher.find()) {
167 //                        testChar = null;
168 //                        english.append(matcher.group(1));
169 //                        testChar = english.toString();
170 //                        Log.i(TAG, "testChar: " + testChar);
171 //                        myHandler.sendEmptyMessage(0);
172 //                    }
173 
174                     }
175                 }
176                 readerString = reader.readLine();
177             }
178             reader.close();
179         } catch (IOException | InterruptedException e) {
180             e.printStackTrace();
181         }
182     }
183 
184 
185     @Override
186     public boolean onKeyDown(int keyCode, KeyEvent event) {
187         if (keyCode == KeyEvent.KEYCODE_BACK) {
188             isRun = false;
189             this.finish();
190         }
191         return super.onKeyDown(keyCode, event);
192     }
193 
194 
195     @Override
196     protected void onDestroy() {
197         super.onDestroy();
198         isRun = false;
199         Toast.makeText(getApplicationContext(), "MainActivity onDestroy", Toast.LENGTH_SHORT).show();
200     }
201 
202 
203 }