UiThread DEMO

  1 import java.util.concurrent.ExecutorService;  2 import java.util.concurrent.Executors;  3 import android.app.Activity;  4 import android.app.Dialog;  5 import android.app.ProgressDialog;  6 import android.content.Context;  7 import android.os.Handler;  8 import android.os.Looper;  9 import android.os.Message;  10  11 public class UiThread {  12 private static Context mainContext;  13 private static Handler mainHandler;  14 private static ExecutorService pool;  15 // 最大执行线程数量  16 private static final int MAXTHREADCOUNT = 5;  17  18 private Object obj; // 运行时需要的obj  19 private String flag = ""; // 防止null  20 private long runDelayMillis; // 运行前延迟  21 private long callbackDelayMills; // 回调前延时  22 private Dialog dialog;  23 private UIThreadEvent event;  24 private UIpublisher publisher;  25 private Object back;  26 private Context context;  27  28 public interface UIThreadEvent {  29 public Object runInThread(String flag, Object obj, Publisher publisher);  30  31 public void runInUi(String flag, Object obj, boolean ispublish,  32 float progress);  33  }  34  35 public interface Publisher {  36 public void publishProgress(float progress);  37  38 public void publishObject(Object object);  39  }  40  41 public class PublishData {  42  Object obj;  43 float progress;  44  UiThread uithread;  45  }  46  47 public static UiThread init(Context content) {  48 return new UiThread((Activity) content);  49  }  50  51 public class UIpublisher implements Publisher {  52 public UiThread uithread;  53  54 public UIpublisher(UiThread uithread) {  55 this.uithread = uithread;  56  }  57  58  @Override  59 public void publishProgress(float progress) {  60 PublishData data = new PublishData();  61 data.uithread = uithread;  62 data.progress = progress;  63 data.obj = null;  64  65 Message msg = Message.obtain();  66 msg.obj = data;  67  mainHandler.sendMessage(msg);  68  }  69  70  @Override  71 public void publishObject(Object object) {  72 PublishData data = new PublishData();  73 data.uithread = uithread;  74 data.progress = -1;  75 data.obj = object;  76  77 Message msg = Message.obtain();  78 msg.obj = data;  79  mainHandler.sendMessage(msg);  80  }  81  82  }  83  84 public UiThread(Activity activity) {  85 this.context = activity;  86 if (mainHandler == null || mainContext != context) {  87 mainContext = context;  88  89 if (Looper.myLooper() != Looper.getMainLooper()) {  90 throw new InternalError("uiThread cannot init from thread!");  91  }  92  93 mainHandler = new Handler() {  94  @Override  95 public void handleMessage(Message msg) {  96 if (msg == null)  97 return;  98  99 Object obj = msg.obj; 100 if (obj instanceof UiThread) { 101 UiThread data = (UiThread) obj; 102 // 如果是activity,finish后就不回调mainthread 103 if (context instanceof Activity) { 104 if (((Activity) data.context).isFinishing()) { 105 return; 106  } 107  } 108 109 if (data.dialog != null) { 110 // 关闭加载窗 111  data.dialog.dismiss(); 112  } 113 data.event.runInUi(data.flag, data.back, false, -1); 114 115 // 清理 116 data.dialog = null; 117 data.event = null; 118 data.publisher = null; 119 data = null; 120 } else if (obj instanceof PublishData) { 121 PublishData data = (PublishData) obj; 122 123 if (data.uithread.dialog instanceof ProgressDialog) { 124 // 如果设置显示了ProgressDialog,自动更新dialog的进度 125 if (data.uithread.dialog.isShowing() 126 && data.progress > 0 && data.progress < 100) { 127  ((ProgressDialog) data.uithread.dialog) 128 .setMessage(data.progress + "%"); 129  } 130  } 131 132  data.uithread.event.runInUi(data.uithread.flag, 133 data.obj, true, data.progress); 134 135 // 清理 136 data.uithread = null; 137 data.obj = null; 138 data = null; 139  } 140 msg.obj = null; 141  } 142  }; 143  } 144 if (pool == null) { 145 pool = Executors.newFixedThreadPool(MAXTHREADCOUNT); // 固定线程池 146  } 147  } 148 149 public UiThread setFlag(String flag) { 150 this.flag = flag; 151 return this; 152  } 153 154 public UiThread setObject(Object obj) { 155 this.obj = obj; 156 return this; 157  } 158 159 public UiThread showDialog(Dialog dialog) { 160 if (this.dialog != null) { 161 if (this.dialog.isShowing()) { 162 this.dialog.dismiss(); 163  } 164  } 165 166 this.dialog = dialog; 167 return this; 168  } 169 170 public UiThread showDialog(String tip, boolean canCancel) { 171 if (dialog != null) { 172 if (dialog.isShowing()) { 173  dialog.dismiss(); 174  } 175  } 176 177 if (tip == null) { 178 dialog = ProgressDialog.show(context, null, "加载中", true, canCancel, 179 null); 180 } else { 181 dialog = ProgressDialog.show(context, null, tip, true, canCancel, 182 null); 183  } 184 return this; 185  } 186 187 public UiThread setRunDelay(long delayMillis) { 188 this.runDelayMillis = delayMillis; 189 return this; 190  } 191 192 public UiThread setCallBackDelay(long delayMillis) { 193 this.callbackDelayMills = delayMillis; 194 return this; 195  } 196 197 public void start(UIThreadEvent event) { 198 this.event = event; 199 publisher = new UIpublisher(this); 200 201 if (dialog != null) { 202  dialog.show(); 203  } 204 205 pool.execute(new Runnable() { 206  @Override 207 public void run() { 208 try { 209  Thread.sleep(runDelayMillis); 210 } catch (Exception e) { 211  e.printStackTrace(); 212  } 213 UiThread.this.back = UiThread.this.event.runInThread(flag, obj, 214  publisher); 215 Message msg = Message.obtain(); 216 msg.obj = UiThread.this; 217  mainHandler.sendMessageDelayed(msg, callbackDelayMills); 218  } 219  }); 220  } 221 }

 

 1 import java.io.File;  2 import java.io.FileOutputStream;  3 import java.io.IOException;  4 import java.io.InputStream;  5 import java.net.HttpURLConnection;  6 import java.net.MalformedURLException;  7 import java.net.URL;  8  9 import org.apache.http.HttpEntity;  10 import org.apache.http.HttpResponse;  11 import org.apache.http.client.HttpClient;  12 import org.apache.http.client.methods.HttpGet;  13 import org.apache.http.impl.client.DefaultHttpClient;  14 import org.apache.http.util.EntityUtils;  15  16 import android.app.Activity;  17 import android.graphics.Bitmap;  18 import android.graphics.BitmapFactory;  19 import android.os.Bundle;  20 import android.os.Environment;  21 import android.os.Message;  22 import android.view.View;  23 import android.view.View.OnClickListener;  24 import android.widget.ImageView;  25 import android.widget.TextView;  26  27 import com.yunxun.tool.UiThread;  28 import com.yunxun.tool.UiThread.Publisher;  29 import com.yunxun.tool.UiThread.UIThreadEvent;  30  31 public class MainActivity extends Activity implements OnClickListener,  32  UIThreadEvent {  33  TextView tv;  34  ImageView img;  35  36  @Override  37 protected void onCreate(Bundle savedInstanceState) {  38 super.onCreate(savedInstanceState);  39  setContentView(R.layout.activity_main);  40 tv = (TextView) findViewById(R.id.tv);  41 img = (ImageView) findViewById(R.id.img);  42 findViewById(R.id.btn_get).setOnClickListener(this);  43 findViewById(R.id.btn_image).setOnClickListener(this);  44 findViewById(R.id.btn_nor).setOnClickListener(this);  45 findViewById(R.id.btn_down).setOnClickListener(this);  46  }  47  48  @Override  49 public void onClick(View view) {  50 switch (view.getId()) {  51 case R.id.btn_nor: // 普通操作  52 // 延迟3秒回调setCallBackDelay(3000) 执行线程延迟4秒setRunDelay(4000)  53 UiThread.init(this).setCallBackDelay(3000)  54 .showDialog("加载中...", true).setFlag("nor").start(this);  55 break;  56 case R.id.btn_get: // get操作  57 UiThread.init(this).setFlag("get").showDialog("加载中...", false)  58 .start(this);  59 break;  60 case R.id.btn_image: // 图片请求  61 UiThread.init(this).setFlag("img").start(this);  62 break;  63 case R.id.btn_down: // 下载文件  64 UiThread.init(this).setFlag("down").start(this);  65 break;  66 default:  67 break;  68  }  69  }  70  71 private static String doget() {  72 String url = "http://ptool.aliapp.com/getip";  73 HttpGet get = new HttpGet(url);  74 HttpClient client = new DefaultHttpClient();  75 try {  76 HttpResponse response = client.execute(get); // 执行get方法  77 String resultString = EntityUtils.toString(response.getEntity());  78 return resultString;  79 } catch (Exception e) {  80  }  81 return null;  82  }  83  84 private static Bitmap returnBitMap() {  85 String url = "http://ptool.aliapp.com/QRCodeEncoder?content=im-"  86 + (int) (Math.random() * 100);  87  88 URL myFileUrl = null;  89 Bitmap bitmap = null;  90  HttpURLConnection conn;  91 try {  92 myFileUrl = new URL(url);  93 } catch (MalformedURLException e) {  94  e.printStackTrace();  95  }  96  97 try {  98 conn = (HttpURLConnection) myFileUrl.openConnection();  99 conn.setDoInput(true); 100  conn.connect(); 101 InputStream is = conn.getInputStream(); 102 bitmap = BitmapFactory.decodeStream(is); 103  is.close(); 104 105 } catch (IOException e) { 106  e.printStackTrace(); 107  } 108 109 return bitmap; 110  } 111 112 public void loadFile(String url, String locPath, String filename, 113  Publisher publisher) { 114 HttpClient client = new DefaultHttpClient(); 115 HttpGet get = new HttpGet(url); 116  HttpResponse response; 117 try { 118 response = client.execute(get); 119 120 HttpEntity entity = response.getEntity(); 121 float length = entity.getContentLength(); 122 123 InputStream is = entity.getContent(); 124 FileOutputStream fileOutputStream = null; 125 if (is != null) { 126 127 String sdcard = Environment.getExternalStorageDirectory() 128 .getAbsolutePath() + "/" + locPath; 129 130 File dir = new File(sdcard); 131 if (!dir.exists()) { // 不存在则创建 132  dir.mkdirs(); 133  } 134 135 File file = new File(sdcard + "/" + filename); 136 if (file.exists()) { 137  file.delete(); 138 } else { 139  file.createNewFile(); 140  } 141 fileOutputStream = new FileOutputStream(file); 142 byte[] buf = new byte[1024]; 143 int ch = -1; 144 float count = 0; 145 while ((ch = is.read(buf)) != -1) { 146 fileOutputStream.write(buf, 0, ch); 147 count += ch; 148 float progress = count * 100f / length; 149 150 // 发布进度 151  publisher.publishProgress(progress); 152  } 153  } 154 155 // 发布成功 156  publisher.publishProgress(100f); 157 158  fileOutputStream.flush(); 159 if (fileOutputStream != null) { 160  fileOutputStream.close(); 161  } 162 } catch (Exception e) { 163  e.printStackTrace(); 164 165 // 发布下载失败 166 publisher.publishProgress(-1); 167  } 168  } 169 170  @Override 171 public Object runInThread(String flag, Object obj, 172  UiThread.Publisher publisher) { 173 if (flag.equals("nor")) { 174 for (int i = 0; i < 10; i++) { 175 try { 176 Thread.sleep(1000); 177 } catch (Exception e) { 178  } 179 // 可以在线程中发布一个进度,runInUi时 ispublish=true,progress=发布的进度(0-100) 180 publisher.publishProgress(i * 10); 181  } 182 // 还可以发布一个object,runInUi时 ispublish=true,progress=-1 183 publisher.publishObject(new Bundle()); 184 185 return new Message(); 186 } else if (flag.equals("get")) { 187 return doget(); 188 } else if (flag.equals("img")) { 189 return returnBitMap(); 190 } else if (flag.equals("down")) { 191 // 给个publisher对象让它发布进度 192  loadFile( 193 "http://dlsw.baidu.com/sw-search-sp/soft/3a/12350/QQ6.1.1406080907.exe", 194 "Dowbload", "QQsetup.exe", publisher); 195 return "我是object!"; 196  } 197 return null; 198  } 199 200  @Override 201 public void runInUi(String flag, Object obj, boolean ispublish, 202 float progress) { 203 if (flag.equals("nor")) { 204 if (ispublish) { 205 if (progress == -1) {// 发布的是object 206 tv.setText("进度:" + progress); 207 } else {// 发布的是进度 208 tv.setText("发布的obj:" + obj); 209  } 210 } else { 211 tv.setText("返回数据:" + obj); 212  } 213 } else if (flag.equals("get")) { 214 tv.setText("请求结果:" + obj); 215 } else if (flag.equals("img")) { 216 Bitmap bm = (Bitmap) obj; 217 if (bm != null) { 218  img.setImageBitmap(bm); 219 } else { 220 tv.setText("加载图片失败!"); 221  } 222 } else if (flag.equals("down")) { 223 if (ispublish) { 224 tv.setText("进度:" + progress); 225 } else { 226 tv.setText("结果:" + obj); 227  } 228  } 229  } 230 231 }