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public class ToastUtils { public static Toast mToast; public static void showLongToast(Context context, String content) { if (mToast == null) { mToast = Toast.makeText(context, content, Toast.LENGTH_LONG); } else { mToast.setText(content); mToast.setDuration(Toast.LENGTH_LONG); } mToast.show(); } public static void showShortToast(Context context, String content) { if (mToast == null) { mToast = Toast.makeText(context, content, Toast.LENGTH_SHORT); } else { mToast.setText(content); mToast.setDuration(Toast.LENGTH_SHORT); } mToast.show(); } public static void cancleToast() { //用于取消Toast if (mToast != null) { mToast.cancel(); } } }