1 import android.app.Activity;
2 import android.os.Bundle;
3 import android.view.LayoutInflater;
4 import android.view.View;
5 import android.view.ViewGroup;
6 import android.widget.BaseAdapter;
7 import android.widget.ListView;
8 import android.widget.Toast;
9 import com.dk.view.drop.CoverManager;
10 import com.dk.view.drop.WaterDrop;
11 import com.dk.view.drop.DropCover.OnDragCompeteListener;
12
13 public class MainActivity extends Activity {
14
15 @Override
16 protected void onCreate(Bundle savedInstanceState) {
17 super.onCreate(savedInstanceState);
18 setContentView(R.layout.activity_main);
19 getActionBar().hide();
20 CoverManager.getInstance().init(this);
21
22 ListView mList = (ListView) findViewById(R.id.list);
23 mList.setAdapter(new DemoAdapter());
24
25 CoverManager.getInstance().setMaxDragDistance(150);
26 CoverManager.getInstance().setExplosionTime(150);
27 }
28
29 class DemoAdapter extends BaseAdapter {
30 @Override
31 public int getCount() {
32 return 99;
33 }
34 @Override
35 public Object getItem(int position) {
36 return null;
37 }
38 @Override
39 public long getItemId(int position) {
40 return 0;
41 }
42 @Override
43 public View getView(final int position, View convertView,
44 ViewGroup parent) {
45 convertView = LayoutInflater.from(MainActivity.this).inflate(
46 R.layout.view_list_item, null);
47 WaterDrop drop = (WaterDrop) convertView.findViewById(R.id.drop);
48 drop.setText(String.valueOf(position));
49 drop.setOnDragCompeteListener(new OnDragCompeteListener() {
52 @Override
53 public void onDrag() {
54 Toast.makeText(MainActivity.this, "remove:" + position,
55 Toast.LENGTH_SHORT).show();
56 }
57 });
58 return convertView;
59 }
60 }
61 }
1 <?xml version="1.0" encoding="utf-8"?> 2 3 <!-- R.layout.view_list_item --> 4 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 5 xmlns:app="http://schemas.android.com/apk/res/com.view.drop" 6 android:layout_width="match_parent" 7 android:layout_height="match_parent" 8 android:gravity="center_vertical" 9 android:orientation="horizontal" > 10 11 <com.view.drop.CircleImageView 12 android:layout_width="50dp" 13 android:layout_height="50dp" 14 android:src="@drawable/p3" 15 app:border_color="#92DDED" 16 app:border_width="3dp" /> 17 18 <LinearLayout 19 android:layout_width="match_parent" 20 android:layout_height="60dp" 21 android:orientation="vertical" > 22 <LinearLayout 23 android:layout_width="match_parent" 24 android:layout_height="30dp" 25 android:layout_marginLeft="10dp" 26 android:layout_marginRight="10dp" 27 android:gravity="center_vertical" > 28 <TextView 29 android:layout_width="match_parent" 30 android:layout_height="30dp" 31 android:layout_weight="1" 32 android:gravity="center_vertical" 33 android:text="Dean Ding" 34 android:textColor="#444444" /> 35 <TextView 36 android:layout_width="40dp" 37 android:layout_height="30dp" 38 android:gravity="center_vertical" 39 android:text="11:11" 40 android:textColor="#666666" /> 41 </LinearLayout> 42 43 <LinearLayout 44 android:layout_width="match_parent" 45 android:layout_height="30dp" 46 android:layout_marginLeft="10dp" 47 android:layout_marginRight="10dp" 48 android:gravity="center_vertical" > 49 <TextView 50 android:layout_width="match_parent" 51 android:layout_height="30dp" 52 android:layout_weight="1" 53 android:gravity="center_vertical" 54 android:text="Hello World" 55 android:textColor="#666666" /> 56 57 <com.dk.view.drop.WaterDrop 58 android:id="@+id/drop" 59 android:layout_width="25dp" 60 android:layout_height="25dp" 61 android:gravity="center_vertical" /> 62 </LinearLayout> 63 </LinearLayout> 64 65 </LinearLayout>
1 import android.content.Context;
2 import android.content.res.TypedArray;
3 import android.graphics.Bitmap;
4 import android.graphics.BitmapShader;
5 import android.graphics.Canvas;
6 import android.graphics.Color;
7 import android.graphics.Matrix;
8 import android.graphics.Paint;
9 import android.graphics.RectF;
10 import android.graphics.Shader;
11 import android.graphics.drawable.BitmapDrawable;
12 import android.graphics.drawable.ColorDrawable;
13 import android.graphics.drawable.Drawable;
14 import android.util.AttributeSet;
15 import android.widget.ImageView;
16
17 /**
18 * Copyright 2014 Henning Dodenhof
19 *
20 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
21 * use this file except in compliance with the License. You may obtain a copy of
22 * the License at
23 *
24 * http://www.apache.org/licenses/LICENSE-2.0
25 *
26 * Unless required by applicable law or agreed to in writing, software
27 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
28 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
29 * License for the specific language governing permissions and limitations under
30 * the License.
31 *
32 * 圆头像
33 *
34 */
35 public class CircleImageView extends ImageView {
36
37 private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;
38
39 private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;
40 private static final int COLORDRAWABLE_DIMENSION = 1;
41
42 private static final int DEFAULT_BORDER_WIDTH = 0;
43 private static final int DEFAULT_BORDER_COLOR = Color.BLACK;
44
45 private final RectF mDrawableRect = new RectF();
46 private final RectF mBorderRect = new RectF();
47
48 private final Matrix mShaderMatrix = new Matrix();
49 private final Paint mBitmapPaint = new Paint();
50 private final Paint mBorderPaint = new Paint();
51
52 private int mBorderColor = DEFAULT_BORDER_COLOR;
53 private int mBorderWidth = DEFAULT_BORDER_WIDTH;
54
55 private Bitmap mBitmap;
56 private BitmapShader mBitmapShader;
57 private int mBitmapWidth;
58 private int mBitmapHeight;
59
60 private float mDrawableRadius;
61 private float mBorderRadius;
62
63 private boolean mReady;
64 private boolean mSetupPending;
65
66 public CircleImageView(Context context) {
67 super(context);
68 }
69
70 public CircleImageView(Context context, AttributeSet attrs) {
71 this(context, attrs, 0);
72 }
73
74 public CircleImageView(Context context, AttributeSet attrs, int defStyle) {
75 super(context, attrs, defStyle);
76 super.setScaleType(SCALE_TYPE);
77
78 TypedArray a = context.obtainStyledAttributes(attrs,
79 R.styleable.CircleImageView, defStyle, 0);
80
81 mBorderWidth = a.getDimensionPixelSize(
82 R.styleable.CircleImageView_border_width, DEFAULT_BORDER_WIDTH);
83 mBorderColor = a.getColor(R.styleable.CircleImageView_border_color,
84 DEFAULT_BORDER_COLOR);
85
86 a.recycle();
87
88 mReady = true;
89
90 if (mSetupPending) {
91 setup();
92 mSetupPending = false;
93 }
94 }
95
96 @Override
97 public ScaleType getScaleType() {
98 return SCALE_TYPE;
99 }
100
101 @Override
102 public void setScaleType(ScaleType scaleType) {
103 if (scaleType != SCALE_TYPE) {
104 throw new IllegalArgumentException(String.format(
105 "ScaleType %s not supported.", scaleType));
106 }
107 }
108
109 @Override
110 protected void onDraw(Canvas canvas) {
111 if (getDrawable() == null) {
112 return;
113 }
114
115 canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius,
116 mBitmapPaint);
117 if (mBorderWidth != 0) {
118 canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius,
119 mBorderPaint);
120 }
121 }
122
123 @Override
124 protected void onSizeChanged(int w, int h, int oldw, int oldh) {
125 super.onSizeChanged(w, h, oldw, oldh);
126 setup();
127 }
128
129 public int getBorderColor() {
130 return mBorderColor;
131 }
132
133 public void setBorderColor(int borderColor) {
134 if (borderColor == mBorderColor) {
135 return;
136 }
137
138 mBorderColor = borderColor;
139 mBorderPaint.setColor(mBorderColor);
140 invalidate();
141 }
142
143 public int getBorderWidth() {
144 return mBorderWidth;
145 }
146
147 public void setBorderWidth(int borderWidth) {
148 if (borderWidth == mBorderWidth) {
149 return;
150 }
151
152 mBorderWidth = borderWidth;
153 setup();
154 }
155
156 @Override
157 public void setImageBitmap(Bitmap bm) {
158 super.setImageBitmap(bm);
159 mBitmap = bm;
160 setup();
161 }
162
163 @Override
164 public void setImageDrawable(Drawable drawable) {
165 super.setImageDrawable(drawable);
166 mBitmap = getBitmapFromDrawable(drawable);
167 setup();
168 }
169
170 @Override
171 public void setImageResource(int resId) {
172 super.setImageResource(resId);
173 mBitmap = getBitmapFromDrawable(getDrawable());
174 setup();
175 }
176
177 private Bitmap getBitmapFromDrawable(Drawable drawable) {
178 if (drawable == null) {
179 return null;
180 }
181
182 if (drawable instanceof BitmapDrawable) {
183 return ((BitmapDrawable) drawable).getBitmap();
184 }
185
186 try {
187 Bitmap bitmap;
188
189 if (drawable instanceof ColorDrawable) {
190 bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION,
191 COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);
192 } else {
193 bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
194 drawable.getIntrinsicHeight(), BITMAP_CONFIG);
195 }
196
197 Canvas canvas = new Canvas(bitmap);
198 drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
199 drawable.draw(canvas);
200 return bitmap;
201 } catch (OutOfMemoryError e) {
202 return null;
203 }
204 }
205
206 private void setup() {
207 if (!mReady) {
208 mSetupPending = true;
209 return;
210 }
211
212 if (mBitmap == null) {
213 return;
214 }
215
216 mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP,
217 Shader.TileMode.CLAMP);
218
219 mBitmapPaint.setAntiAlias(true);
220 mBitmapPaint.setShader(mBitmapShader);
221
222 mBorderPaint.setStyle(Paint.Style.STROKE);
223 mBorderPaint.setAntiAlias(true);
224 mBorderPaint.setColor(mBorderColor);
225 mBorderPaint.setStrokeWidth(mBorderWidth);
226
227 mBitmapHeight = mBitmap.getHeight();
228 mBitmapWidth = mBitmap.getWidth();
229
230 mBorderRect.set(0, 0, getWidth(), getHeight());
231 mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2,
232 (mBorderRect.width() - mBorderWidth) / 2);
233
234 mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width()
235 - mBorderWidth, mBorderRect.height() - mBorderWidth);
236 mDrawableRadius = Math.min(mDrawableRect.height() / 2,
237 mDrawableRect.width() / 2);
238
239 updateShaderMatrix();
240 invalidate();
241 }
242
243 private void updateShaderMatrix() {
244 float scale;
245 float dx = 0;
246 float dy = 0;
247
248 mShaderMatrix.set(null);
249
250 if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width()
251 * mBitmapHeight) {
252 scale = mDrawableRect.height() / (float) mBitmapHeight;
253 dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;
254 } else {
255 scale = mDrawableRect.width() / (float) mBitmapWidth;
256 dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;
257 }
258
259 mShaderMatrix.setScale(scale, scale);
260 mShaderMatrix.postTranslate((int) (dx + 0.5f) + mBorderWidth,
261 (int) (dy + 0.5f) + mBorderWidth);
262
263 mBitmapShader.setLocalMatrix(mShaderMatrix);
264 }
265
266 }
1 import com.dk.view.drop.DropCover.OnDragCompeteListener;
2 import android.annotation.SuppressLint;
3 import android.content.Context;
4 import android.graphics.Canvas;
5 import android.graphics.Paint;
6 import android.os.Build.VERSION;
7 import android.util.AttributeSet;
8 import android.view.MotionEvent;
9 import android.view.View;
10 import android.view.ViewGroup;
11 import android.widget.ListView;
12 import android.widget.RelativeLayout;
13 import android.widget.ScrollView;
14 import android.widget.TextView;
15 // 红色圆圈
16 public class WaterDrop extends RelativeLayout {
17 private Paint mPaint = new Paint();
18 private TextView mTextView;
19 private DropCover.OnDragCompeteListener mOnDragCompeteListener;
20 private boolean mHolderEventFlag;
21
22 public WaterDrop(Context context) {
23 super(context);
24 init();
25 }
26
27 public WaterDrop(Context context, AttributeSet attrs) {
28 super(context, attrs);
29 init();
30 }
31
32 public void setText(String str) {
33 mTextView.setText(str);
34 }
35
36 public void setTextSize(int size) {
37 mTextView.setTextSize(size);
38 }
39
40 @SuppressLint("NewApi")
41 private void init() {
42 mPaint.setAntiAlias(true);
43 if (VERSION.SDK_INT > 11) {
44 setLayerType(View.LAYER_TYPE_SOFTWARE, null);
45 }
46
47 mTextView = new TextView(getContext());
48 RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
49 params.addRule(RelativeLayout.CENTER_IN_PARENT);
50 mTextView.setTextSize(13);
51 mTextView.setTextColor(0xffffffff);
52 mTextView.setLayoutParams(params);
53 addView(mTextView);
54 }
55
56 @Override
57 protected void dispatchDraw(Canvas canvas) {
59 mPaint.setColor(0xffff0000);
60 canvas.drawCircle(getWidth() / 2, getHeight() / 2, getWidth() / 2, mPaint);
61 super.dispatchDraw(canvas);
62 }
63
64 @Override
65 protected void onDraw(Canvas canvas) {
66 super.onDraw(canvas);
67 }
68
69 @Override
70 public boolean onTouchEvent(MotionEvent event) {
71 ViewGroup parent = getScrollableParent();
72 switch (event.getAction()) {
73 case MotionEvent.ACTION_DOWN:
74 mHolderEventFlag = !CoverManager.getInstance().isRunning();
75 if (mHolderEventFlag) {
76 if (parent != null)
77 parent.requestDisallowInterceptTouchEvent(true);
78 CoverManager.getInstance().start(this, event.getRawX(), event.getRawY(), mOnDragCompeteListener);
79 }
80 break;
81 case MotionEvent.ACTION_MOVE:
82 if (mHolderEventFlag) {
83 CoverManager.getInstance().update(event.getRawX(), event.getRawY());
84 }
85 break;
86 case MotionEvent.ACTION_UP:
87 case MotionEvent.ACTION_CANCEL:
88 if (mHolderEventFlag) {
89 if (parent != null)
90 parent.requestDisallowInterceptTouchEvent(false);
91 CoverManager.getInstance().finish(this, event.getRawX(), event.getRawY());
92 }
93 break;
94 }
95
96 return true;
97 }
98
99 private ViewGroup getScrollableParent() {
100 View target = this;
101 while (true) {
102 View parent;
103 try {
104 /**
105 * ViewRootImpl cannot be cast to android.view.View
106 */
107 parent = (View) target.getParent();
108 } catch (Exception e) {
109 return null;
110 }
111 if (parent == null)
112 return null;
113 if (parent instanceof ListView || parent instanceof ScrollView) {
114 return (ViewGroup) parent;
115 }
116 target = parent;
117 }
118
119 }
120
121 public void setOnDragCompeteListener(OnDragCompeteListener onDragCompeteListener) {
122 mOnDragCompeteListener = onDragCompeteListener;
123 }
124 }
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
WaterDropLibrary http://download.csdn.net/detail/androidsj/7948845
时间： 2024-08-14 04:14:35