如何使用管理面板在卡片中添加渐变设计（适用于App的后端）
我有一个Quotes应用，并且还具有管理面板。
问题是我只能使用Admin Panel添加一种颜色。我想使用Admin Panel添加渐变颜色，我该怎么做。我尝试添加可能的详细信息，但是如果您想要更多详细信息，我会提供。请帮忙！ 我很困惑！
这是我的数据库。Java
package com.ReBirth.Statusly.data;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import com.ReBirth.Statusly.model.Quotes;
import java.util.ArrayList;
import java.util.List;
public class DatabaseHandler extends SQLiteOpenHelper {
private Context context;
private SQLiteDatabase db;
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "quotes_db";
public static final String TABLE_FAVORITES = "favorites";
// Columns names TABLE_FAVORITES
private static final String ID = "id";
private static final String CategoryID = "cat_id";
private static final String CategoryName = "cat_name";
private static final String CategoryImg = "cat_img";
private static final String CategoryColor = "cat_color";
private static final String Date = "date";
private static final String Body = "body";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
this.context=context;
this.db = this.getWritableDatabase();
Log.d("DB", "Constructor");
}
@Override
public void onCreate(SQLiteDatabase db) {
Log.d("DB", "onCreate");
createTableFavorites(db);
}
@Override
public void onUpgrade(SQLiteDatabase db, int i, int i1) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_FAVORITES);
createTableFavorites(db);
}
private void createTableFavorites(SQLiteDatabase db) {
String CREATE_TABLE = "CREATE TABLE " + TABLE_FAVORITES + "("
+ ID + " INTEGER PRIMARY KEY, "
+ CategoryID + " INTEGER, "
+ CategoryName + " TEXT, "
+ CategoryImg + " TEXT, "
+ CategoryColor + " TEXT, "
+ Date + " TEXT, "
+ Body + " TEXT "
+ ")";
db.execSQL(CREATE_TABLE);
}
//////////////////////////////////////////////////////// Favorites ////////////////////////////////////////////////////////
public Quotes addOneFavorite(Quotes quotes) {
ContentValues values = new ContentValues();
values.put(ID, quotes.getId());
values.put(CategoryID, quotes.getCat_id());
values.put(CategoryName, quotes.getCat_name());
values.put(CategoryImg, quotes.getCat_img());
values.put(CategoryColor, quotes.getCat_color());
values.put(Date, quotes.getDate());
values.put(Body, quotes.getBody());
db.insert(TABLE_FAVORITES, null, values);
return quotes;
}
public void deleteFavorites(Quotes quotes) {
db.delete(TABLE_FAVORITES, ID + " = ?", new String[] { String.valueOf(quotes.getId()+"") });
}
public boolean isFavoritesExist(Integer id) {
Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_FAVORITES + " WHERE " + ID + " = ?", new String[]{id+""});
int count = cursor.getCount();
cursor.close();
return (count>0);
}
public List<Quotes> getAllFavorites() {
return getAll(TABLE_FAVORITES);
}
private List<Quotes> getAll(String table) {
List<Quotes> list;
Cursor cursor = db.rawQuery("SELECT * FROM " + table + " ORDER BY " + ID + " DESC", null);
list = getAllFormCursor(cursor);
return list;
}
private List<Quotes> getAllFormCursor(Cursor cursor) {
List<Quotes> list = new ArrayList<>();
if (cursor.moveToFirst()) {
do {
Quotes r = new Quotes();
r.setId(cursor.getInt(cursor.getColumnIndex(ID)));
r.setCat_id(cursor.getInt(cursor.getColumnIndex(CategoryID)));
r.setCat_name(cursor.getString(cursor.getColumnIndex(CategoryName)));
r.setCat_img(cursor.getString(cursor.getColumnIndex(CategoryImg)));
r.setCat_color(cursor.getString(cursor.getColumnIndex(CategoryColor)));
r.setDate(cursor.getString(cursor.getColumnIndex(Date)));
r.setBody(cursor.getString(cursor.getColumnIndex(Body)));
list.add(r);
} while (cursor.moveToNext());
}
return list;
}
}
下面的代码用于添加背景色（QuoteAdapter.java中的代码）
public void onBindViewHolder(@NonNull final ViewHolder viewHolder, final int position) {
final Quotes quotes = data.get(position);
viewHolder.quote.setText(quotes.getBody());
viewHolder.views.setText(mContext.getResources().getString(R.string.views) +" "+ quotes.getViews());
viewHolder.date.setText(Tools.DateToTimeFormat(quotes.getDate()));
viewHolder.card.setBackgroundColor(Color.parseColor(quotes.getCat_color()));
模型文件（Quotes.java）
package com.ReBirth.Statusly.model;
import com.google.gson.annotations.SerializedName;
import java.io.Serializable;
public class Quotes implements Serializable {
@SerializedName("id")
private Integer id;
@SerializedName("cat_id")
private Integer cat_id;
@SerializedName("cat_name")
private String cat_name;
@SerializedName("cat_img")
private String cat_img;
@SerializedName("cat_color")
private String cat_color;
@SerializedName("body")
private String body;
@SerializedName("date")
private String date;
@SerializedName("views")
private String views;
public Integer getId() {
return id;
}
public Integer getCat_id() {
return cat_id;
}
public String getCat_name() {
return cat_name;
}
public String getCat_img() {
return cat_img;
}
public String getCat_color() {
return cat_color;
}
public String getBody() {
return body;
}
public String getDate() {
return date;
}
public String getViews() {
return views;
}
public void setId(Integer id) {
this.id = id;
}
public void setCat_id(Integer cat_id) {
this.cat_id = cat_id;
}
public void setCat_name(String cat_name) {
this.cat_name = cat_name;
}
public void setCat_img(String cat_img) {
this.cat_img = cat_img;
}
public void setCat_color(String cat_color) {
this.cat_color = cat_color;
}
public void setBody(String body) {
this.body = body;
}
public void setDate(String date) {
this.date = date;
}
}
下面我给了管理面板的php文件，该文件用于输入颜色
<?php include("files/header.php"); ?>
<?php include_once 'helpers/Upimg.php'; ?>
<link href="assets/css/colorpicker.css" rel="stylesheet"/>
<div class="row">
<div class="col-md-12">
<div class="panel panel-default panel-table">
<div class="panel-heading">
<div class="row">
<div class="col col-xs-6">
<h6 class="title"><strong>Add Category :</strong></h6>
</div>
<div class="col col-xs-6 text-right">
<img style="width: 40px; height:40px" id='img-upload'"/>
</div>
</div>
</div>
<form action="add_category.php" class="form" method="post" enctype="multipart/form-data">
<div class="panel-body">
<?php
if (isset($_POST['save'])) {
$name = $Fun->post($Fun->clears($_POST['name']));
$color = $Fun->post($Fun->clears($_POST['color']));
$img_name = 'category_' . time();
list($msg, $result) = up_file($_FILES['img'], $img_name);
if ($msg == 'succ') {
$img = $result;
} else {
echo $result;
}
if (empty($_FILES["img"]["name"])) {
$Fun->alert_msg("Image is empty", "danger");
} else {
$insert = $db->Insert("`category`", "(`name`,`image`,`color`)", "('$name','$img','$color')") or die($db->Error(__file__, __line__));
if (isset($insert)) {
$Fun->alert_msg("Added successfully", "success");
$Fun->refresh("2", "add_category.php");
}
}
}
?>
<div class="row">
<div class="col-md-5">
<div class="form-group">
<label>Category Name :</label>
<input type="text" class="form-control border-input" name="name" value="<?= $_POST['name'] ?>" required>
</div>
</div>
<div class="col-md-2">
<div class="form-group">
<div class="form-group">
<label>Color :</label>
<input type="text" autocomplete="off" class="form-control border-input" id="ColorPicker" name="color" value="<?= $_POST['color'] ?>" required>
</div>
</div>
</div>
<div class="col-md-5">
<div class="form-group">
<label>Select Icon : <strong class="icon-danger">(Recommended resolution: 128x128)</strong></label>
<div class="input-group">
<span class="input-group-btn">
<span class="btn btn-default btn-file">Browse<input type="file" name="img" id="imgInp"></span>
</span>
<input type="text" class="form-control" readonly>
</div>
</div>
</div>
</div>
</div>
<div class="panel-footer">
<div class="row">
<div class="text-center">
<button type="submit" class="btn btn-success btn-fill" name="save">Save</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
<?php include("files/footer.php"); ?>
0 个答案:
没有答案
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