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