Android实现搜索历史(1)，android开发框架qmui

/**

• xxx改为你想保存的sp文件名称

*/

public static SPUtils getInstance(Context context) {

mContext &＃61; context;

if (sp &＃61;&＃61; null) {

sp &＃61; context.getApplicationContext().getSharedPreferences(FILE_NAME, Context.MODE_PRIVATE);

}

return instance;

}

/**

• 保存数据

*/

public void put(String key, Object value) {

if (value instanceof Integer) {

sp.edit().putInt(key, (Integer) value).apply();

} else if (value instanceof String) {

sp.edit().putString(key, (String) value).apply();

} else if (value instanceof Boolean) {

sp.edit().putBoolean(key, (Boolean) value).apply();

} else if (value instanceof Float) {

sp.edit().putFloat(key, (Float) value).apply();

} else if (value instanceof Long) {

sp.edit().putLong(key, (Long) value).apply();

}

}

/**

• 2. 读取数据

*/

public int getInt(String key, int defValue) {

return sp.getInt(key, defValue);

}

public String getString(String key, String defValue) {

return sp.getString(key, defValue);

}

public boolean getBoolean(String key, boolean defValue) {

return sp.getBoolean(key, defValue);

}

/**

• 读取数据

• &＃64;param key

• &＃64;param defValue

• &＃64;return

*/

public T get(String key, T defValue) {

T t &＃61; null;

if (defValue instanceof String || defValue &＃61;&＃61; null) {

String value &＃61; sp.getString(key, (String) defValue);

t &＃61; (T) value;

} else if (defValue instanceof Integer) {

Integer value &＃61; sp.getInt(key, (Integer) defValue);

t &＃61; (T) value;

} else if (defValue instanceof Boolean) {

Boolean value &＃61; sp.getBoolean(key, (Boolean) defValue);

t &＃61; (T) value;

} else if (defValue instanceof Float) {

Float value &＃61; sp.getFloat(key, (Float) defValue);

t &＃61; (T) value;

}

return t;

}

/**

• 保存搜索记录

• &＃64;param keyword

*/

public void save(String keyword) {

// 获取搜索框信息

SharedPreferences mysp &＃61; mContext.getSharedPreferences(“search_history”, 0);

String old_text &＃61; mysp.getString(“history”, “”);

// 利用StringBuilder.append新增内容&＃xff0c;逗号便于读取内容时用逗号拆分开

StringBuilder builder &＃61; new StringBuilder(old_text);

builder.append(keyword &＃43; “,”);

// 判断搜索内容是否已经存在于历史文件&＃xff0c;已存在则不重复添加

if (!old_text.contains(keyword &＃43; “,”)) {

SharedPreferences.Editor myeditor &＃61; mysp.edit();

myeditor.putString(“history”, builder.toString());

myeditor.commit();

}

}

public String[] getHistoryList() {

// 获取搜索记录文件内容

SharedPreferences sp &＃61; mContext.getSharedPreferences(“search_history”, 0);

String history &＃61; sp.getString(“history”, “”);

// 用逗号分割内容返回数组

String[] history_arr &＃61; history.split(",");

// 保留前50条数据

if (history_arr.length > 50) {

String[] newArrays &＃61; new String[50];

System.arraycopy(history_arr, 0, newArrays, 0, 50);

}

return history_arr;

}

/**

• 清除搜索记录

*/

public void cleanHistory() {

SharedPreferences sp &＃61; mContext.getSharedPreferences(“search_history”, 0);

SharedPreferences.Editor editor &＃61; sp.edit();

editor.clear();

editor.commit();

}

}

4.Activity主要功能实现

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

import kemizhibo.rhkj.com.ijkpalaydemo.search.KeyBoardUtils;

import kemizhibo.rhkj.com.ijkpalaydemo.search.RegularUtils;

import kemizhibo.rhkj.com.ijkpalaydemo.search.SPUtils;

public class Main2Activity extends AppCompatActivity {

ZFlowLayout historyFl;

EditText autoSearch;

Button button_search;

&＃64;Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main2);

historyFl &＃61; findViewById(R.id.history_fl);

autoSearch&＃61;findViewById(R.id.autoSearch);

button_search&＃61;findViewById(R.id.button_search);

initHistory();

button_search.setOnClickListener(new View.OnClickListener() {

&＃64;Override

public void onClick(View v) {

if (KeyBoardUtils.isSoftShowing(Main2Activity.this)) {

KeyBoardUtils.hintKeyboard(Main2Activity.this);

}

String searchKey &＃61; autoSearch.getText().toString();

if (!isNullorEmpty(searchKey)) {

if (RegularUtils.hasEmoji(autoSearch.getText().toString())) {

//含有非法字符串

} else {

//搜索

String keyWord &＃61; autoSearch.getText().toString();

if (!isNullorEmpty(keyWord)) {

SPUtils.getInstance(Main2Activity.this).save(autoSearch.getText().toString());

}

initHistory();

}

} else {

//搜索为空

}

}

});

}

private boolean isNullorEmpty(String str) {

return str &＃61;&＃61; null || “”.equals(str);

}

/**

• 初始化 历史记录列表

*/

private void initHistory() {

final String[] data &＃61; SPUtils.getInstance(Main2Activity.this).getHistoryList();

ViewGroup.MarginLayoutParams layoutParams &＃61; new ViewGroup.MarginLayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);

layoutParams.setMargins(10, 10, 10, 10);

historyFl.removeAllViews();

for (int i &＃61; 0; i

if (isNullorEmpty(data[i])) {

return;

}

//有数据往下走

final int j &＃61; i;

//添加分类块

View paramItemView &＃61; getLayoutInflater().inflate(R.layout.adapter_search_keyword, null);

TextView keyWordTv &＃61; paramItemView.findViewById(R.id.tv_content);

keyWordTv.setText(data[j]);

historyFl.addView(paramItemView, layoutParams);

keyWordTv.setOnClickListener(new View.OnClickListener() {

&＃64;Override

public void onClick(View v) {

if (KeyBoardUtils.isSoftShowing(Main2Activity.this)) {

KeyBoardUtils.hintKeyboard(Main2Activity.this);

}

autoSearch.setText(data[j]);

autoSearch.setSelection(data[j].length());//光标在最后

if (!isNullorEmpty(data[j])) {

SPUtils.getInstance(Main2Activity.this).save(autoSearch.getText().toString());

}

//点击事件

}

});

// initautoSearch();

}

}

}

5.布局文件activity_main2.xml

android:orientation&＃61;“vertical”

xmlns:android&＃61;“http://schemas.android.com/apk/res/android”

xmlns:tools&＃61;“h
ttp://schemas.android.com/tools”

android:layout_width&＃61;“match_parent”

android:layout_height&＃61;“match_parent”

tools:context&＃61;“kemizhibo.rhkj.com.ijkpalaydemo.Main2Activity”>

android:id&＃61;"&＃64;&＃43;id/button_search"

android:layout_width&＃61;“wrap_content”

android:layout_height&＃61;“wrap_content”

android:text&＃61;“搜索”

/>

android:layout_width&＃61;“match_parent”

android:layout_height&＃61;“40dp”

android:id&＃61;"&＃64;&＃43;id/autoSearch"

/>

android:id&＃61;"&＃64;&＃43;id/history_fl"

android:layout_width&＃61;“match_parent”

android:layout_height&＃61;“wrap_content”

android:layout_below&＃61;"&＃64;&＃43;id/title"

android:orientation&＃61;“vertical” />

adapter_search_keyword.xml

android:id&＃61;"&＃64;&＃43;id/tv_content"

android:layout_width&＃61;“wrap_content”

android:layout_height&＃61;“wrap_content”

android:layout_marginLeft&＃61;“15dp”

android:layout_marginTop&＃61;“12dp”

android:background&＃61;"#00f"

android:paddingBottom&＃61;“8dp”

android:paddingLeft&＃61;“12dp”

android:paddingRight&＃61;“12dp”

android:includeFontPadding&＃61;“false”

android:paddingTop&＃61;“8dp”

android:textColor&＃61;"#fff"

/>

ZFlowLayout.java

import android.content.Context;

import android.util.AttributeSet;

import android.view.View;

import android.view.ViewGroup;

import java.util.ArrayList;

import java.util.List;

/*****************************

• &＃64;Copyright© 2014-2018

• &＃64;Author&＃xff1a;dengyalan

• &＃64;Date&＃xff1a;2018/1/16

• &＃64;Description&＃xff1a;自定义搜索标签布局

• &＃64;Version:v1.0.0

*****************************/

public class ZFlowLayout extends ViewGroup {

/**

• 存储所有子View

*/

private List mAllChildViews &＃61; new ArrayList<>();

/**

• 每一行的高度

*/

private List mLineHeight &＃61; new ArrayList<>();

public ZFlowLayout(Context context) {

this(context, null);

}

public ZFlowLayout(Context context, AttributeSet attrs) {

this(context, attrs, 0);

}

public ZFlowLayout(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

}

&＃64;Override

protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

//父控件传进来的宽度和高度以及对应的测量模式

int sizeWidth &＃61; MeasureSpec.getSize(widthMeasureSpec);

int modeWidth &＃61; MeasureSpec.getMode(widthMeasureSpec);

int sizeHeight &＃61; MeasureSpec.getSize(heightMeasureSpec);

int modeHeight &＃61; MeasureSpec.getMode(heightMeasureSpec);

//如果当前ViewGroup的宽高为wrap_content的情况

//自己测量的宽度

int width &＃61; 0;

//自己测量的高度

int height &＃61; 0;

//记录每一行的宽度和高度

int lineWidth &＃61; 0;

int lineHeight &＃61; 0;

//获取子view的个数

int childCount &＃61; getChildCount();

for (int i &＃61; 0; i

View child &＃61; getChildAt(i);

//测量子View的宽和高

measureChild(child, widthMeasureSpec, heightMeasureSpec);

//得到LayoutParams

MarginLayoutParams lp &＃61; (MarginLayoutParams) child.getLayoutParams();

//子View占据的宽度

int childWidth &＃61; child.getMeasuredWidth() &＃43; lp.leftMargin &＃43; lp.rightMargin;

//子View占据的高度

int childHeight &＃61; child.getMeasuredHeight() &＃43; lp.topMargin &＃43; lp.bottomMargin;

//换行时候

if (lineWidth &＃43; childWidth > sizeWidth) {

//对比得到最大的宽度
ntent的情况

//自己测量的宽度

int width &＃61; 0;

//自己测量的高度

int height &＃61; 0;

//记录每一行的宽度和高度

int lineWidth &＃61; 0;

int lineHeight &＃61; 0;

//获取子view的个数

int childCount &＃61; getChildCount();

for (int i &＃61; 0; i

View child &＃61; getChildAt(i);

//测量子View的宽和高

measureChild(child, widthMeasureSpec, heightMeasureSpec);

//得到LayoutParams

MarginLayoutParams lp &＃61; (MarginLayoutParams) child.getLayoutParams();

//子View占据的宽度

int childWidth &＃61; child.getMeasuredWidth() &＃43; lp.leftMargin &＃43; lp.rightMargin;

//子View占据的高度

int childHeight &＃61; child.getMeasuredHeight() &＃43; lp.topMargin &＃43; lp.bottomMargin;

//换行时候

if (lineWidth &＃43; childWidth > sizeWidth) {

//对比得到最大的宽度