修改测试问题

main/src/main/java/com/yunbao/main/activity/SearchActivity.java

@@ -3,7 +3,9 @@ package com.yunbao.main.activity;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
+import android.text.Editable;
 import android.text.TextUtils;
+import android.text.TextWatcher;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.inputmethod.EditorInfo;
@@ -72,7 +74,26 @@ public class SearchActivity extends AbsActivity {
                 mEditText.setText("");
             }
         });
+        findViewById(R.id.btn_delete).setVisibility(View.GONE);
         mEditText.setOnEditorActionListener(onEditorActionListener);
+        mEditText.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+                if (!s.toString().trim().isEmpty()) {
+                    findViewById(R.id.btn_delete).setVisibility(View.VISIBLE);
+                }
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+
+            }
+        });
         //退出检索页面保存搜索记录
         findViewById(R.id.btn_back).setOnClickListener(new View.OnClickListener() {
             @Override