/**
*/
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;
}
/**
*/
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();
}
}
/**
*/
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;
}
/**
*/
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);
}
/**
*/
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 {
/**
*/
private List mAllChildViews &＃61; new ArrayList<>();
/**
*/
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
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