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如何在Android中使用EditText實現批量搜索關鍵詞？相信很多沒有經驗的人對此束手無策，為此本文總結了問題出現的原因和解決方法，通過這篇文章希望你能解決這個問題。
當用戶在EditText中輸入內容，點擊搜索按鈕的時候，輸入的內容能夠高亮，然后添加到輸入的容器中。刪除的時候，能夠將容器中的關鍵詞逐一刪除。附上代碼：
SearchEditText.java
package com.jackie.searchresultedittext;
import android.content.Context;
import android.graphics.Color;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
/**
* Created by Jackie on 2017/2/21.
* 用于搜索的EditText
*/
public class SearchEditText extends RelativeLayout {
private Context mContext;
private LayoutInflater mInflater;
private View mView;
private LinearLayout mContainer;
private EditText mEditText = null;
public SearchEditText(Context context) {
this(context, null);
}
public SearchEditText(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SearchEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
private OnSearchChangeListener mSearchChangeListener;
public interface OnSearchChangeListener {
void searchChange(String s);
void removeView(int position);
}
public void setOnSearchChangeListener(OnSearchChangeListener searchChangeListener) {
mSearchChangeListener = searchChangeListener;
}
private void init(Context context) {
mContext = context;
mInflater = LayoutInflater.from(mContext);
mView = mInflater.inflate(R.layout.search_edittext_layout, null);
LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
params.leftMargin = 15;
params.rightMargin = 15;
addView(mView, params);
mContainer = (LinearLayout) mView.findViewById(R.id.layout);
mEditText = (EditText) mView.findViewById(R.id.edittext);
mEditText.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_DEL) {
if (isNotFastClick()) {
if (mEditText.getText().toString().length() > 0) {
String str = mEditText.getText().toString();
str = str.substring(0, str.length() - 1);
mEditText.setText(str);
mEditText.setSelection(str.length());
} else {
if (mContainer.getChildCount() > 0) {
if (mSearchChangeListener != null) {
mSearchChangeListener.removeView(mContainer.getChildCount() - 1);
}
mContainer.removeViewAt(mContainer.getChildCount() - 1);
}
}
}
}
return true;
}
});
mEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_SEARCH) {
if (mEditText.getText().toString().trim().equals("")) {
return true;
}
TextView textView = new TextView(mContext);
textView.setText(mEditText.getText().toString().trim());
textView.setTextSize(14);
textView.setTextColor(Color.parseColor("#dfe0e0"));
textView.setPadding(10, 0, 10, 0);
textView.setBackgroundResource(R.drawable.shape_edittext_round_bg);
textView.setGravity(Gravity.CENTER);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
params.leftMargin = 10;
textView.setLayoutParams(params);
if (mSearchChangeListener != null) {
mSearchChangeListener.searchChange(mEditText.getText().toString().trim());
}
mEditText.setText("");
mContainer.addView(textView);
}
return true;
}
});
}
public EditText getEditText() {
return mEditText;
}
public LinearLayout getContainer() {
return mContainer;
}
long lastClickTime = 0;
public boolean isNotFastClick() {
long time = System.currentTimeMillis();
if (time - lastClickTime >= 300) {
lastClickTime = time;
return true;
} else {
return false;
}
}
} search_edittext_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<HorizontalScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none"
android:fillViewport="true"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="33dp"
android:orientation="horizontal">
<LinearLayout
android:id="@+id/layout"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal"
android:gravity="center_vertical"
android:layout_gravity="center_vertical" />
<EditText
android:gravity="center_vertical"
android:layout_gravity="center_vertical"
android:id="@+id/edittext"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@null"
android:textSize="16dp"
android:textColor="#dfe0e0"
android:layout_weight="1"
android:minWidth="50dp"
android:imeOptions="actionSearch"
android:singleLine="true"
android:layout_marginLeft="10dp"/>
</LinearLayout>
</HorizontalScrollView> shape_edittext_round_bg.xml
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <solid android:color="#666666" /> <corners android:radius="10dp"/> </shape>
看完上述內容，你們掌握如何在Android中使用EditText實現批量搜索關鍵詞的方法了嗎？如果還想學到更多技能或想了解更多相關內容，歡迎關注億速云行業資訊頻道，感謝各位的閱讀！
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