values/attrs.xml 自定义控件属性
<?xml version="1.0" encoding="UTF-8"?>
<resources>
<declare-styleable name="CircleImageView">
<attr name="border_width" format="dimension" />
<attr name="border_color" format="color" />
</declare-styleable>
</resources>
3 /**
4 * 圆形图片自定义控件
5 */
7 import android.content.Context;
8 import android.content.res.TypedArray;
9 import android.graphics.Bitmap;
10 import android.graphics.BitmapShader;
11 import android.graphics.Canvas;
12 import android.graphics.Color;
13 import android.graphics.Matrix;
14 import android.graphics.Paint;
15 import android.graphics.RectF;
16 import android.graphics.Shader;
17 import android.graphics.drawable.BitmapDrawable;
18 import android.graphics.drawable.ColorDrawable;
19 import android.graphics.drawable.Drawable;
20 import android.util.AttributeSet;
21 import android.widget.ImageView;
23 import com.trainee.app.R;
24
25 public class CircleImageView extends ImageView {
27 private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;
29 private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;
30 private static final int COLORDRAWABLE_DIMENSION = 1;
32 private static final int DEFAULT_BORDER_WIDTH = 0;
33 private static final int DEFAULT_BORDER_COLOR = Color.BLACK;
35 private final RectF mDrawableRect = new RectF();
36 private final RectF mBorderRect = new RectF();
38 private final Matrix mShaderMatrix = new Matrix();
39 private final Paint mBitmapPaint = new Paint();
40 private final Paint mBorderPaint = new Paint();
41
42 private int mBorderColor = DEFAULT_BORDER_COLOR;
43 private int mBorderWidth = DEFAULT_BORDER_WIDTH;
44
45 private Bitmap mBitmap;
46 private BitmapShader mBitmapShader;
47 private int mBitmapWidth;
48 private int mBitmapHeight;
49
50 private float mDrawableRadius;
51 private float mBorderRadius;
52
53 private boolean mReady;
54 private boolean mSetupPending;
55
56 public CircleImageView(Context context) {
57 super(context);
58 }
59
60 public CircleImageView(Context context, AttributeSet attrs) {
61 this(context, attrs, 0);
62 }
63
64 public CircleImageView(Context context, AttributeSet attrs, int defStyle) {
65 super(context, attrs, defStyle);
66 super.setScaleType(SCALE_TYPE);
67
68 TypedArray a = context.obtainStyledAttributes(attrs,
69 R.styleable.CircleImageView, defStyle, 0);
70
71 mBorderWidth = a.getDimensionPixelSize(
72 R.styleable.CircleImageView_border_width, DEFAULT_BORDER_WIDTH);
73 mBorderColor = a.getColor(R.styleable.CircleImageView_border_color,
74 DEFAULT_BORDER_COLOR);
76 a.recycle();
78 mReady = true;
79
80 if (mSetupPending) {
81 setup();
82 mSetupPending = false;
83 }
84 }
85
86 @Override
87 public ScaleType getScaleType() {
88 return SCALE_TYPE;
89 }
90
91 @Override
92 public void setScaleType(ScaleType scaleType) {
93 if (scaleType != SCALE_TYPE) {
94 throw new IllegalArgumentException(String.format(
95 "ScaleType %s not supported.", scaleType));
96 }
97 }
98
99 @Override
100 protected void onDraw(Canvas canvas) {
101 if (getDrawable() == null) {
102 return;
103 }
104
105 canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius,
106 mBitmapPaint);
107 canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius,
108 mBorderPaint);
109 }
110
111 @Override
112 protected void onSizeChanged(int w, int h, int oldw, int oldh) {
113 super.onSizeChanged(w, h, oldw, oldh);
114 setup();
115 }
116
117 public int getBorderColor() {
118 return mBorderColor;
119 }
120
121 public void setBorderColor(int borderColor) {
122 if (borderColor == mBorderColor) {
123 return;
124 }
126 mBorderColor = borderColor;
127 mBorderPaint.setColor(mBorderColor);
128 invalidate();
129 }
130
131 public int getBorderWidth() {
132 return mBorderWidth;
133 }
134
135 public void setBorderWidth(int borderWidth) {
136 if (borderWidth == mBorderWidth) {
137 return;
138 }
140 mBorderWidth = borderWidth;
141 setup();
142 }
143
144 @Override
145 public void setImageBitmap(Bitmap bm) {
146 super.setImageBitmap(bm);
147 mBitmap = bm;
148 setup();
149 }
150
151 @Override
152 public void setImageDrawable(Drawable drawable) {
153 super.setImageDrawable(drawable);
154 mBitmap = getBitmapFromDrawable(drawable);
155 setup();
156 }
157
158 @Override
159 public void setImageResource(int resId) {
160 super.setImageResource(resId);
161 mBitmap = getBitmapFromDrawable(getDrawable());
162 setup();
163 }
164
165 private Bitmap getBitmapFromDrawable(Drawable drawable) {
166 if (drawable == null) {
167 return null;
168 }
169
170 if (drawable instanceof BitmapDrawable) {
171 return ((BitmapDrawable) drawable).getBitmap();
172 }
174 try {
175 Bitmap bitmap;
176
177 if (drawable instanceof ColorDrawable) {
178 bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION,
179 COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);
180 } else {
181 bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
182 drawable.getIntrinsicHeight(), BITMAP_CONFIG);
183 }
185 Canvas canvas = new Canvas(bitmap);
186 drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
187 drawable.draw(canvas);
188 return bitmap;
189 } catch (OutOfMemoryError e) {
190 return null;
191 }
192 }
193
194 private void setup() {
195 if (!mReady) {
196 mSetupPending = true;
197 return;
198 }
200 if (mBitmap == null) {
201 return;
202 }
204 mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP,
205 Shader.TileMode.CLAMP);
206
207 mBitmapPaint.setAntiAlias(true);
208 mBitmapPaint.setShader(mBitmapShader);
209
210 mBorderPaint.setStyle(Paint.Style.STROKE);
211 mBorderPaint.setAntiAlias(true);
212 mBorderPaint.setColor(mBorderColor);
213 mBorderPaint.setStrokeWidth(mBorderWidth);
214
216 mBitmapHeight = mBitmap.getHeight();
217 mBitmapWidth = mBitmap.getWidth();
218
221 mBorderRect.set(0, 0, getWidth(), getHeight());
222 mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2,
223 (mBorderRect.width() - mBorderWidth) / 2);
224
225 mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width()
226 - mBorderWidth, mBorderRect.height() - mBorderWidth);
227 mDrawableRadius = Math.min(mDrawableRect.height() / 2,
228 mDrawableRect.width() / 2);
229
230 updateShaderMatrix();
231 invalidate();
232 }
233
234 private void updateShaderMatrix() {
235 float scale;
236 float dx = 0;
237 float dy = 0;
238
239 mShaderMatrix.set(null);
240
241 if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width()
242 * mBitmapHeight) {
243 scale = mDrawableRect.height() / (float) mBitmapHeight;
244 dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;
245 } else {
246 scale = mDrawableRect.width() / (float) mBitmapWidth;
247 dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;
248 }
249
250 mShaderMatrix.setScale(scale, scale);
251 mShaderMatrix.postTranslate((int) (dx + 0.5f) + mBorderWidth,
252 (int) (dy + 0.5f) + mBorderWidth);
253
254 mBitmapShader.setLocalMatrix(mShaderMatrix);
255 }
256
257 }
1 <LinearLayout
2 android:id="@+id/layout_head"
3 android:layout_width="170dp"
4 android:layout_height="170dp"
5 android:layout_marginTop="70dp"
6 android:background="@android:color/black"
7 android:gravity="center"
8 android:layout_gravity="center">
9 <com.trainee.app.widget.CircleImageView
10 android:id="@+id/img_head_circle"
11 android:layout_width="25dp"
12 android:layout_height="25dp"
13 android:layout_gravity="center"
14 android:src="@drawable/login_touxiang" />
15 </LinearLayout>
private LinearLayout layout_head;
private CircleImageView img_head_circle;
img_head_circle = (CircleImageView) view.findViewById(R.id.img_head_circle);
layout_head = (LinearLayout) view.findViewById(R.id.layout_head);
try {
String contentString = UserInfo.vipcode; // 得到二维码内容
if (!contentString.equals("")) {
//根据字符串生成二维码图片并显示在界面上，第二个参数为图片的大小（600*600）
Bitmap qrCodeBitmap = EncodingHandler.createQRImage2(contentString, 700, 700);
//------------------添加logo部分------------------//
/*Bitmap logoBmp = BitmapFactory.decodeResource(mActivity.getResources(),
R.drawable.ic_launcher);*/
//二维码和logo合并
Bitmap bitmap = Bitmap.createBitmap(qrCodeBitmap.getWidth(), qrCodeBitmap
.getHeight(), qrCodeBitmap.getConfig());
Canvas canvas = new Canvas(bitmap);
//二维码
canvas.drawBitmap(qrCodeBitmap, 0, 0, null);
//logo绘制在二维码中央
/*canvas.drawBitmap(logoBmp, qrCodeBitmap.getWidth() / 2
- logoBmp.getWidth() / 2, qrCodeBitmap.getHeight()
/ 2 - logoBmp.getHeight() / 2, null);*/
//------------------添加logo部分------------------//
// qrImgImageView.setImageBitmap(bitmap);
layout_head.setBackground(ImageTools.bitmapToDrawable(bitmap));
} else {
Toast.makeText(mActivity, "Text can not be empty", Toast.LENGTH_SHORT).show();
}
mActivity.mToolBitmap.display(img_head_circle, UserInfo.headportraits);
} catch (Exception e) {
e.printStackTrace();
}
}