本文僅為個人的處理方式，希望能對您有所幫助，歡迎各位留言指正，抱拳了
1、text.xml示例：
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#ccc"> <EditText android:id="@+id/input" android:layout_width="@dimen/dimen_270" android:layout_height="wrap_content" android:maxLines="1" android:hint="請輸入內容" android:textSize="@dimen/dimen_16" android:textColor="@color/color_fff" android:layout_marginTop="@dimen/dimen_10" /> <ImageView android:id="@+id/del" android:layout_width="@dimen/dimen_14" android:layout_height="@dimen/dimen_14" android:visibility="gone" android:layout_marginTop="@dimen/dimen_28" android:src="@mipmap/bonus_envelope_cancel_icon_normal" android:layout_toRightOf="@id/input"/> </RelativeLayout>
2.textActivity.java示例：
public class textActivity extends Activity implements View.OnClickListener { private EditText input; private ImageView inputDel; //實例化一鍵清除輸入內容 @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.text); initView(); initListener(); } //對變量進行初始化 private void initView(){ inputDel = findViewById(R.id.del); input = findViewById(R.id.input); } //設置監聽器 private void initListener(){ input.addTextChangedListener(textWatcher); inputDel.setOnClickListener(this); } private TextWatcher textWatcher = 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) { } @Override public void afterTextChanged(Editable s) { if (input.getEditableText().length() >= 1){ inputDel.setVisibility(View.VISIBLE); } else{ inputDel.setVisibility(View.GONE); } } }; //點擊事件（清空） @Override public void onClick(View v) { switch (v.getId()){ case R.id.del: input.setText(""); break; } } }
3、在AndroidManifest.xml中進行注冊：
<activity android:name=".textActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>
4、效果圖如下：
動圖展示：