commit

Author: chenyw

.idea/caches/build_file_checksums.ser

@@ -1,7 +1,7 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
+    compileSdkVersion 24
     buildToolsVersion "25.0.3"
     defaultConfig {
         applicationId "com.hencoder.hencoderpracticedraw2"
@@ -20,7 +20,7 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile fileTree(include: ['*.jar'], dir: 'libs')
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })

.idea/codeStyles/Project.xml

@@ -3,13 +3,16 @@
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Color;
+import android.graphics.LinearGradient;
 import android.graphics.Paint;
+import android.graphics.Shader;
 import android.support.annotation.Nullable;
 import android.util.AttributeSet;
 import android.view.View;
 
 public class Practice01LinearGradientView extends View {
     Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+    Shader shader = new LinearGradient(100,100,500,500,Color.parseColor("#E91E63"),Color.parseColor("#2196F3"),Shader.TileMode.CLAMP);
 
     public Practice01LinearGradientView(Context context) {
         super(context);
@@ -24,14 +27,21 @@ public Practice01LinearGradientView(Context context, @Nullable AttributeSet attr
     }
 
     {
+        /**
+         * LinearGradient(float x0, float y0, float x1, float y1, int color0, int color1, Shader.TileMode tile) 。
+
+         参数：
+         x0 y0 x1 y1：渐变的两个端点的位置
+         color0 color1 是端点的颜色
+         */
         // 用 Paint.setShader(shader) 设置一个 LinearGradient
         // LinearGradient 的参数：坐标：(100, 100) 到 (500, 500) ；颜色：#E91E63 到 #2196F3
     }
 
     @Override
     protected void onDraw(Canvas canvas) {
         super.onDraw(canvas);
-
+        paint.setShader(shader);
         canvas.drawCircle(300, 300, 200, paint);
     }
 }