* 显示富文本
22 
 */
23 
public class RichTextView extends ScrollView {
24 
    private static final String TAG = "RichTextView";
25 
    private static final int EDIT_PADDING = 3; // edittext常规padding是10dp
26
27 
    private int viewTagIndex = 1; // 新生的view都会打一个tag，对每个view来说，这个tag是唯一的。
28 
    private LinearLayout allLayout; // 这个是所有子view的容器，scrollView内部的唯一一个ViewGroup
29 
    private LayoutInflater inflater;
30 
    private int editNormalPadding = 0; //
31
32 
    public RichTextView(Context context) {
33 
        this(context, null);
34 
    }
35
36 
    public RichTextView(Context context, AttributeSet attrs) {
37 
        this(context, attrs, 0);
38 
    }
39
40 
    public RichTextView(Context context, AttributeSet attrs, int defStyleAttr) {
41 
        super(context, attrs, defStyleAttr);
42 
        inflater = LayoutInflater.from(context);
43
44 
        // 1. 初始化allLayout
45 
        allLayout = new LinearLayout(context);
46 
        allLayout.setOrientation(LinearLayout.VERTICAL);
47 
        //allLayout.setBackgroundColor(Color.WHITE);//去掉背景
48 
        LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT,
49 
                LayoutParams.WRAP_CONTENT);
50 
        allLayout.setPadding(50, 15, 50, 15);//设置间距，防止生成图片时文字太靠边
51 
        addView(allLayout, layoutParams);
52
53 
        LinearLayout.LayoutParams firstEditParam = new LinearLayout.LayoutParams(
54 
                LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
55 
        //editNormalPadding = dip2px(EDIT_PADDING);
56 
        TextView firstText = createTextView("没有内容", dip2px(context, EDIT_PADDING));
57 
        allLayout.addView(firstText, firstEditParam);
58 
    }
59
60 
    public int dip2px(Context context, float dipValue) {
61 
        float m = context.getResources().getDisplayMetrics().density;
62 
        return (int) (dipValue * m + 0.5f);
63 
    }
64
65 
    /**
66 
     * 清除所有的view
67 
     */
68 
    public void clearAllLayout() {
69 
        allLayout.removeAllViews();
70 
    }
71
72 
    /**
73 
     * 获得最后一个子view的位置
74 
     *
75 
     * @return
76 
     */
77 
    public int getLastIndex() {
78 
        int lastEditIndex = allLayout.getChildCount();
79 
        return lastEditIndex;
80 
    }
81
82 
    /**
83 
     * 生成文本输入框
84 
     */
85 
    public TextView createTextView(String hint, int paddingTop) {
86 
        TextView textView = (TextView) inflater.inflate(R.layout.rich_textview, null);
87 
        textView.setTag(viewTagIndex++);
88 
        textView.setPadding(editNormalPadding, paddingTop, editNormalPadding, paddingTop);
89 
        textView.setHint(hint);
90 
        return textView;
91 
    }
92
93 
    /**
94 
     * 生成图片View
95 
     */
96 
    private RelativeLayout createImageLayout() {
97 
        RelativeLayout layout = (RelativeLayout) inflater.inflate(
98 
                R.layout.edit_imageview, null);
99 
        layout.setTag(viewTagIndex++);
100 
        View closeView = layout.findViewById(R.id.image_close);
101 
        closeView.setVisibility(GONE);
102 
        return layout;
103 
    }
104
105 
    /**
106 
     * 在特定位置插入EditText
107 
     *
108 
     * @param index   位置
109 
     * @param editStr EditText显示的文字
110 
     */
111 
    public void addTextViewAtIndex(final int index, CharSequence editStr) {
112 
        TextView textView = createTextView("", EDIT_PADDING);
113 
        textView.setText(editStr);
114
115 
        allLayout.addView(textView, index);
116 
    }
117
118 
    /**
119 
     * 在特定位置添加ImageView
120 
     */
121 
    public void addImageViewAtIndex(final int index, String imagePath) {
122 
        String width, height;
123 
        String[] strarray = imagePath.split("\\&");
124 
        final String path = strarray[0];
125 
        width = strarray[1];
126 
        if (width.contains(".")) {
127 
            width = width.substring(0, width.indexOf("."));
128 
        }
129 
        height = strarray[2];
130 
        if (height.contains(".")) {
131 
            height = height.substring(0, height.indexOf("."));
132 
        }
133
134 
//        Bitmap bmp = BitmapFactory.decodeFile(imagePath);
135
136 
        final RelativeLayout imageLayout = createImageLayout();
137 
        DataImageView imageView = (DataImageView) imageLayout.findViewById(R.id.edit_imageView);
138 
        RequestOptions options = new RequestOptions().centerCrop();
139 
        Glide.with(getContext()).load(imagePath).apply(options).into(imageView);
140 
        //imageView.setImageBitmap(bmp);//这里改用Glide加载图片
141 
        //imageView.setBitmap(bmp);//这句去掉，保留下面的图片地址即可，优化图片占用
142 
//        imageView.setAbsolutePath(imagePath);//保留这句，后面保存数据会用
143 
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);//裁剪剧中
144
145 
        // 调整imageView的高度
146 
        int imageHeight = 500;
147 
        int img_width = Integer.parseInt(width);
148 
        int img_height = Integer.parseInt(height);
149 
        if (width != null) {
150 
            imageHeight = allLayout.getWidth() * img_height / img_width;
151 
            // 使用之后，还是回收掉吧
152 
//            bmp.recycle();
153 
        }
154 
//        Log.e(TAG, "addImageViewAtIndex_imageHeight: "+imageHeight );
155 
        RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
156 
                LayoutParams.MATCH_PARENT, imageHeight);
157 
        lp.bottomMargin = 6;
158 
        imageView.setLayoutParams(lp);
159
160 
        allLayout.addView(imageLayout, index);
161 
    }
162
163 
    /**
164 
     * 根据view的宽度，动态缩放bitmap尺寸
165 
     *
166 
     * @param width view的宽度
167 
     */
168 
    public Bitmap getScaledBitmap(String filePath, int width) {
169 
        BitmapFactory.Options options = new BitmapFactory.Options();
170 
        options.inJustDecodeBounds = true;
171 
        BitmapFactory.decodeFile(filePath, options);
172 
        int sampleSize = options.outWidth > width ? options.outWidth / width
173 
                + 1 : 1;
174 
        options.inJustDecodeBounds = false;
175 
        options.inSampleSize = sampleSize;
176 
        return BitmapFactory.decodeFile(filePath, options);
177 
    }
178
179 
}

+ 131 - 0
app/src/main/java/com/electric/chargingpile/view/xrichtext/SDCardUtil.java
Voir le fichier 

@ -0,0 +1,131 @@
1 
package com.electric.chargingpile.view.xrichtext;
2
3 
import android.content.ContentResolver;
4 
import android.content.Context;
5 
import android.database.Cursor;
6 
import android.graphics.Bitmap;
7 
import android.net.Uri;
8 
import android.os.Environment;
9 
import android.provider.MediaStore;
10
11 
import java.io.File;
12 
import java.io.FileNotFoundException;
13 
import java.io.FileOutputStream;
14 
import java.io.IOException;
15
16 
public class SDCardUtil {
17 
    public static String SDCardRoot = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator;
18
19 
    /**
20 
     * 检查是否存在SDCard
21 
     *
22 
     * @return
23 
     */
24 
    public static boolean hasSdcard() {
25 
        String state = Environment.getExternalStorageState();
26 
        if (state.equals(Environment.MEDIA_MOUNTED)) {
27 
            return true;
28 
        } else {
29 
            return false;
30 
        }
31 
    }
32
33 
    /**
34 
     * 获得文章图片保存路径
35 
     *
36 
     * @return
37 
     */
38 
    public static String getPictureDir() {
39 
        String imageCacheUrl = SDCardRoot + "XRichText" + File.separator;
40 
        File file = new File(imageCacheUrl);
41 
        if (!file.exists())
42 
            file.mkdir();  //如果不存在则创建
43 
        return imageCacheUrl;
44 
    }
45
46 
    /**
47 
     * 图片保存到SD卡
48 
     *
49 
     * @param bitmap
50 
     * @return
51 
     */
52 
    public static String saveToSdCard(Bitmap bitmap) {
53 
        String imageUrl = getPictureDir() + System.currentTimeMillis() + "-.jpeg";
54 
        File file = new File(imageUrl);
55 
        try {
56 
            FileOutputStream out = new FileOutputStream(file);
57 
            if (bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out)) {
58 
                out.flush();
59 
                out.close();
60 
            }
61 
        } catch (FileNotFoundException e) {
62 
            e.printStackTrace();
63 
        } catch (IOException e) {
64 
            e.printStackTrace();
65 
        }
66 
        return file.getAbsolutePath();
67 
    }
68
69 
    /**
70 
     * 保存到指定路径，笔记中插入图片
71 
     *
72 
     * @param bitmap
73 
     * @param path
74 
     * @return
75 
     */
76 
    public static String saveToSdCard(Bitmap bitmap, String path) {
77 
        File file = new File(path);
78 
        try {
79 
            FileOutputStream out = new FileOutputStream(file);
80 
            if (bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out)) {
81 
                out.flush();
82 
                out.close();
83 
            }
84 
        } catch (FileNotFoundException e) {
85 
            e.printStackTrace();
86 
        } catch (IOException e) {
87 
            e.printStackTrace();
88 
        }
89 
        //System.out.println("文件保存路径："+ file.getAbsolutePath());
90 
        return file.getAbsolutePath();
91 
    }
92
93 
    /**
94 
     * 删除文件
95 
     **/
96 
    public static void deleteFile(String filePath) {
97 
        File file = new File(filePath);
98 
        if (file.isFile() && file.exists())
99 
            file.delete(); // 删除文件
100 
    }
101
102 
    /**
103 
     * 根据Uri获取图片文件的绝对路径
104 
     */
105 
    public static String getFilePathByUri(Context context, final Uri uri) {
106 
        if (null == uri) {
107 
            return null;
108 
        }
109 
        final String scheme = uri.getScheme();
110 
        String data = null;
111 
        if (scheme == null) {
112 
            data = uri.getPath();
113 
        } else if (ContentResolver.SCHEME_FILE.equals(scheme)) {
114 
            data = uri.getPath();
115 
        } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {
116 
            Cursor cursor = context.getContentResolver().query(uri,
117 
                    new String[]{MediaStore.Images.ImageColumns.DATA}, null, null, null);
118 
            if (null != cursor) {
119 
                if (cursor.moveToFirst()) {
120 
                    int index = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
121 
                    if (index > -1) {
122 
                        data = cursor.getString(index);
123 
                    }
124 
                }
125 
                cursor.close();
126 
            }
127 
        }
128 
        return data;
129 
    }
130
131 
}

+ 24 - 0
app/src/main/res/layout/edit_imageview.xml
Voir le fichier 

@ -0,0 +1,24 @@
1 
<?xml version="1.0" encoding="utf-8"?>
2 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 
    android:layout_width="match_parent"
4 
    android:layout_height="wrap_content">
5
6 
    <com.electric.chargingpile.view.xrichtext.DataImageView
7 
        android:id="@+id/edit_imageView"
8 
        android:layout_width="match_parent"
9 
        android:layout_height="wrap_content"
10 
        android:scaleType="fitXY" />
11
12 
    <ImageView
13 
        android:id="@+id/image_close"
14 
        android:layout_width="50dp"
15 
        android:layout_height="50dp"
16 
        android:layout_alignParentRight="true"
17 
        android:paddingLeft="20dp"
18 
        android:paddingTop="5dp"
19 
        android:paddingRight="5dp"
20 
        android:paddingBottom="20dp"
21 
        android:scaleType="fitXY"
22 
        android:src="@drawable/icon_close" />
23
24 
</RelativeLayout>

+ 9 - 0
app/src/main/res/layout/rich_edittext.xml
Voir le fichier 

@ -0,0 +1,9 @@
1 
<?xml version="1.0" encoding="utf-8"?>
2 
<com.electric.chargingpile.view.xrichtext.DeletableEditText xmlns:android="http://schemas.android.com/apk/res/android"
3 
    android:layout_width="match_parent"
4 
    android:layout_height="wrap_content"
5 
    android:background="@null"
6 
    android:cursorVisible="true"
7 
    android:lineSpacingExtra="8dp"
8 
    android:textColor="#616161"
9 
    android:textSize="16sp" />

+ 10 - 0
app/src/main/res/layout/rich_textview.xml
Voir le fichier 

@ -0,0 +1,10 @@
1 
<?xml version="1.0" encoding="utf-8"?>
2 
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
3 
    android:layout_width="match_parent"
4 
    android:layout_height="wrap_content"
5 
    android:background="@null"
6 
    android:cursorVisible="true"
7 
    android:lineSpacingExtra="8dp"
8 
    android:textIsSelectable="true"
9 
    android:textSize="16sp"
10 
    android:textColor="#616161" />

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