Android自定义荷载进度的两种方法

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:orientation="horizontal" >  <LinearLayout     android:id="@+id/ll"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:orientation="horizontal">      </LinearLayout></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:orientation="vertical" >  <ImageView    android:id="@+id/hezai_img"    android:layout_width="12.5dp"    android:layout_height="31.5dp"/></LinearLayout>

package com.example.progresstest;import android.app.Activity;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.widget.ImageView;import android.widget.LinearLayout;public class ProcessTest01 extends Activity {  private LinearLayout ll;  @Override  protected void onCreate(Bundle savedInstanceState) {    // TODO Auto-generated method stub    super.onCreate(savedInstanceState);    setContentView(R.layout.processtest01);        ll = (LinearLayout) findViewById(R.id.ll);        setProcess(16);      }    private void setProcess(int green){    LayoutInflater inflater = this.getLayoutInflater();    //有进度就填充绿色图片    for (int i = 0; i < green; i++) {      View v = inflater.inflate(R.layout.view01, null);      ImageView img = (ImageView) v.findViewById(R.id.hezai_img);      img.setImageResource(R.drawable.green);      ll.addView(v);    }    //没有进度就填充灰色图片    for (int i = 0; i < 24-green; i++) {      View v = inflater.inflate(R.layout.view01, null);      ImageView img = (ImageView) v.findViewById(R.id.hezai_img);      img.setImageResource(R.drawable.gray);      ll.addView(v);    }  }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:orientation="vertical" >  <com.example.progresstest.HezaiProgress    android:layout_marginTop="20dp"    android:layout_gravity="center"    android:id="@+id/process"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    >      </com.example.progresstest.HezaiProgress></LinearLayout>

package com.example.progresstest;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Rect;import android.util.AttributeSet;import android.util.Log;import android.view.View;import android.view.View.MeasureSpec;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.LinearLayout.LayoutParams;public class HezaiProgress extends View{  private int process = 10;  private int width,height;  private int h = 32;  private int w = 12;  private int divideWidth=5;  private int maxCount = 24;  private int processColor=Color.GREEN;  private int j = 1;  private int num = 0;  public int getProcessColor() {    return processColor;  }  /**   * 自定义颜色，输入的是“#ffffff”形式的颜色字符串   * @param processColor   */  public void setProcessColor(String processColor) {    char c = processColor.charAt(0);    int r = 0;    int g = 0;    int b = 0;    //默认颜色为绿色    int rgb = Color.GREEN;    if(c=='#'){      for(int i = 1;i<processColor.length();i++){        c = processColor.charAt(i);        if(i<3){          r += rOrgOrb(c,i);        }        else if(i<5){          g += rOrgOrb(c,i);        }else{          b += rOrgOrb(c,i);        }              }      rgb = Color.rgb(r, g, b);    }    this.processColor = rgb;      }    private int rOrgOrb(char c,int i){    num++;    char b = 0;    if(c>='0'&&c<='9'){      //j是用于判断是十六进制的哪一位      if(i==j){        //十六进制的右数第二位        b += Integer.valueOf(c)*16;      }      if(i==j+1){        //十六进制的右数第一位        b += Integer.valueOf(c);      }    }    //十六进制的大写字母形式    if(c>='A'&&c<='F'){      if(i==j){        //ascii码减去55，如A的ASCII码为65，减去55后等于10        b += ((int)c-55)*16;      }      if(i==j+1){        b += (int)c-55;      }    }    //十六进制的小写字母形式    if(c>='a'&&c<='f'){      if(i==j){        //ascii码减去87，如a的ASCII码为97，减去87后等于10        b += ((int)c-87)*16;      }      if(i==j+1){        b += (int)c-87;      }    }    //若计数为偶数，则给j加2    if(num%2==0){      j=j+2;    }    return b;  }    //得到最大进度数  public int getMaxCount() {    return maxCount;  }  //设置最大进度数  public void setMaxCount(int maxCount) {    this.maxCount = maxCount;  }  //得到进度  public int getProcess() {    return process;  }  //设置进度  public void setProcess(int process) {    this.process = process;  }  //设置间隔宽度  public void setDivideWidth(int divideWidth){    this.divideWidth = divideWidth;  }  public HezaiProgress(Context context, AttributeSet attrs, int defStyle) {    super(context, attrs, defStyle);    // TODO Auto-generated constructor stub  }  public HezaiProgress(Context context, AttributeSet attrs) {    this(context, attrs,0);    // TODO Auto-generated constructor stub  }  public HezaiProgress(Context context) {    this(context,null);    // TODO Auto-generated constructor stub  }    @Override  protected void onDraw(Canvas canvas) {    // TODO Auto-generated method stub    super.onDraw(canvas);    setHezai(16, canvas);  }  //设置进度条高度  public void setProcessHeight(int h){    if(h==0)      this.h = 32;    else      this.h = h;  }  //设置进度条宽度  public void setProcessWidth(int w){    if(w==0)      this.w = 12;    else      this.w = w;  }    private void setHezai(int process,Canvas canvas){    Rect rect;    Paint paint;    int tmp = 2;    //进度取整，如果进度条总宽度大于指定控件宽度，则只显示整数个进度    if(process*(w+tmp)+tmp>width)      process = width/(w+divideWidth);    //显示进度    for (int i = 0;i<process;i++){      rect = new Rect(tmp, 2,w+tmp,h);      paint = new Paint();      tmp=tmp+w+divideWidth;      paint.setColor(processColor);      canvas.drawRect(rect, paint);    }    //显示灰色进度，及默认没进度状态状态    for (int i = 0; i < maxCount-process; i++) {      rect = new Rect(tmp, 2,w+tmp,h);      paint = new Paint();      tmp=tmp+w+divideWidth;      paint.setColor(Color.rgb(211, 211, 211));      canvas.drawRect(rect, paint);    }  }  //dp转换成px  private int dipToPx(int dip){    float scale = getContext().getResources().getDisplayMetrics().density;    return (int) (dip * scale + 0.5f * (dip >= 0 ? 1 : -1));//加0.5是为了四舍五入  }  @Override  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {    // TODO Auto-generated method stub    super.onMeasure(widthMeasureSpec, heightMeasureSpec);    int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);    int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);    int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);    int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);    //MeasureSpec.EXACTLY，精确尺寸    if (widthSpecMode == MeasureSpec.EXACTLY || widthSpecMode == MeasureSpec.AT_MOST) {      width = widthSpecSize;    } else {      //如果不是精确尺寸，则显示设置尺寸或默认尺寸      width = w;    }    //MeasureSpec.AT_MOST，最大尺寸，只要不超过父控件允许的最大尺寸即可，MeasureSpec.UNSPECIFIED未指定尺寸    if (heightSpecMode == MeasureSpec.AT_MOST || heightSpecMode == MeasureSpec.UNSPECIFIED) {      //显示设置尺寸或默认尺寸      height = dipToPx(h);    } else {      height = heightSpecSize;    }    //设置控件实际大小    setMeasuredDimension(width, height);      }}

package com.example.progresstest;import android.app.Activity;import android.os.Bundle;public class ProcessTest extends Activity {  private HezaiProgress process;  @Override  protected void onCreate(Bundle savedInstanceState) {    // TODO Auto-generated method stub    super.onCreate(savedInstanceState);    setContentView(R.layout.myprocesstest);    process = (HezaiProgress) findViewById(R.id.process);    //设置进度高度    process.setProcessHeight(63);    //设置进度宽度    process.setProcessWidth(25);    //设置间隔宽度    process.setDivideWidth(10);    //设置进度颜色    process.setProcessColor("#008b8b");  }}