//主方法
package com.example.tianjiale20160808;
import view.LegePaint;
import android.os.Bundle;
import android.app.Activity;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
private EditText ed2;
private EditText ed3;
private EditText ed4;
private Button but5;
private LegePaint mlege;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findid();
}
private void findid() {
ed2 = (EditText) findViewById(R.id.ed2);
ed3 = (EditText) findViewById(R.id.ed3);
ed4 = (EditText) findViewById(R.id.ed4);
but5 = (Button) findViewById(R.id.but5);
mlege = (LegePaint) findViewById(R.id.mlegeView);
Log.i("lege", "aaaaaaaaaaaaaaaaaaaaaaaa");
but5.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String trim1 = ed2.getText().toString().trim();
String trim2 = ed3.getText().toString().trim();
String trim3 = ed4.getText().toString().trim();
if (trim1.length() >= 1 && trim1.length() >= 1
&& trim1.length() >= 1) {
//强转String型为Float型 参数不能为空
float price1 = Float.parseFloat(trim1);
float price2 = Float.parseFloat(trim2);
Log.i("lege", price1 + "");
Log.i("lege", price2 + "");
Log.i("lege", trim3);
//通过有参构造 赋值
mlege.setP1(price1);
mlege.setP2(price2);
mlege.setTrim(trim3);
//从新绘制
mlege.invalidate();
} else {
Toast.makeText(MainActivity.this, "最后一个参数格式是 #FF0000", 0).show();
}
}
});
}
}
//集成view类
package view;
import com.example.tianjiale20160808.MainActivity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
public class LegePaint extends View {
private Context context;
private float p1=10;
private float p2=5;
private String trim="#ffffff";
private Paint mpaint;
public float getP1() {
return p1;
}
public void setP1(float p1) {
this.p1 = p1;
}
public float getP2() {
return p2;
}
public void setP2(float p2) {
this.p2 = p2;
}
public String getTrim() {
return trim;
}
public void setTrim(String trim) {
this.trim = trim;
}
public LegePaint(Context context) {
this(context,null);
}
public LegePaint(Context context, AttributeSet attrs) {
this(context, attrs,0);
}
public LegePaint(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mpaint =new Paint(Paint.ANTI_ALIAS_FLAG);
mpaint.setStyle(Paint.Style.STROKE);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
mpaint.setStrokeWidth(p2);
mpaint.setColor(Color.parseColor(trim));
Log.i("le", p1+"aaaaaaaaaaaaa"+p2+"trim");
canvas.drawCircle(300, 300, p1, mpaint);
}
public void shuxin(){
invalidate();
}
}
//布局文件
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<LinearLayout
android:id="@+id/bu1"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#00FF00">
<TextView
android:id="@+id/title1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="自定义圆环"
android:layout_marginLeft="120dp"
android:layout_marginTop="20dp"
/>
</LinearLayout>
<LinearLayout
android:id="@+id/bu2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
>
<TextView
android:id="@+id/title2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="圆的半径"
/>
<EditText
android:id="@+id/ed2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="9"/>
</LinearLayout>
<LinearLayout
android:id="@+id/bu3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
>
<TextView
android:id="@+id/title3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="圆环的宽度"
/>
<EditText
android:id="@+id/ed3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="9"/>
</LinearLayout>
<LinearLayout
android:id="@+id/bu4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
>
<TextView
android:id="@+id/title4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="圆环的颜色"
/>
<EditText
android:id="@+id/ed4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="9"/>
</LinearLayout>
<Button
android:id="@+id/but5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="绘图"/>
<view.LegePaint
android:id="@+id/mlegeView"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
