Android Toast 封装，避免Toast消息覆盖，替换系统Toast最好用的封装

Android Toast 封装，避免Toast消息覆盖，无阻塞，等强大功能

 

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import android.content.Context;  import android.os.Handler;  import android.os.Looper;  import android.widget.Toast;      /**  * Toast工具类  * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>  * @version 2012-5-21 下午9:21:01  */  public class ToastUtils {      private static Handler handler = new Handler(Looper.getMainLooper());      private static Toast toast = null;      private static Object synObj = new Object();          /**      * Toast发送消息，默认Toast.LENGTH_SHORT      * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>      * @version 2012-5-22 上午11:13:10      * @param act      * @param msg      */      public static void showMessage(final Context act, final String msg) {          showMessage(act, msg, Toast.LENGTH_SHORT);      }              /**      * Toast发送消息，默认Toast.LENGTH_LONG      * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>      * @version 2012-5-22 上午11:13:10      * @param act      * @param msg      */      public static void showMessageLong(final Context act, final String msg) {          showMessage(act, msg, Toast.LENGTH_LONG);      }          /**      * Toast发送消息，默认Toast.LENGTH_SHORT      * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>      * @version 2012-5-22 上午11:13:35      * @param act      * @param msg      */      public static void showMessage(final Context act, final int msg) {          showMessage(act, msg, Toast.LENGTH_SHORT);      }              /**      * Toast发送消息，默认Toast.LENGTH_LONG      * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>      * @version 2012-5-22 上午11:13:35      * @param act      * @param msg      */      public static void showMessageLong(final Context act, final int msg) {          showMessage(act, msg, Toast.LENGTH_LONG);      }          /**      * Toast发送消息      * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>      * @version 2012-5-22 上午11:14:09      * @param act      * @param msg      * @param len      */      public static void showMessage(final Context act, final int msg,              final int len) {          new Thread(new Runnable() {              public void run() {                  handler.post(new Runnable() {                          @Override                      public void run() {                          synchronized (synObj) {                              if (toast != null) {                                  toast.cancel();                                  toast.setText(msg);                                  toast.setDuration(len);                              } else {                                  toast = Toast.makeText(act, msg, len);                              }                              toast.show();                          }                      }                  });              }          }).start();      }              /**      * Toast发送消息      * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>      * @version 2012-5-22 上午11:14:27      * @param act      * @param msg      * @param len      */      public static void showMessage(final Context act, final String msg,              final int len) {          new Thread(new Runnable() {              public void run() {                  handler.post(new Runnable() {                          @Override                      public void run() {                          synchronized (synObj) {                              if (toast != null) {                                  toast.cancel();                                  toast.setText(msg);                                  toast.setDuration(len);                              } else {                                  toast = Toast.makeText(act, msg, len);                              }                              toast.show();                          }                      }                  });              }          }).start();      }          /**      * 关闭当前Toast      * @author WikerYong   Email:<a href="#">yw_312@foxmail.com</a>      * @version 2012-5-22 上午11:14:45      */      public static void cancelCurrentToast() {          if (toast != null) {              toast.cancel();          }      }  }