android自定义手表效果

2023-08-02 10:38:04 63

本文实例为大家分享了android自定义手表效果的具体代码，供大家参考，具体内容如下

1.效果图：

2.布局

3.自定义view，显示

packagecom.example.administrator.testz;


importandroid.graphics.Bitmap;
importandroid.graphics.Canvas;
importandroid.graphics.Color;
importandroid.graphics.Paint;
importandroid.os.AsyncTask;
importandroid.support.v7.app.AppCompatActivity;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.widget.Button;
importandroid.widget.ImageView;

importjava.util.Calendar;

/**
*优化方案：
*表盘课绘制一次
*在分线程中进行加载
*/
publicclassMainActivityextendsAppCompatActivityimplementsView.OnClickListener{
privateButtonbtnStart,btnStop;
privateImageViewmClockImageView;
Bitmap.Configconfig=Bitmap.Config.ARGB_8888;
intwidth=500;
intheight=500;

privateCalendarmCalendar;
privateintmHour,mMinute,mSecond;
privatefloatmDegrees;
privatefloatlength;

privatebooleanmIsRunning;

@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

btnStart=(Button)findViewById(R.id.btn_start);
btnStop=(Button)findViewById(R.id.btn_stop);
btnStop.setOnClickListener(this);
btnStart.setOnClickListener(this);

mClockImageView=(ImageView)findViewById(R.id.iv_clock);
mClockImageView.setImageBitmap(drawClock());

}

/**
*画表盘
*/
privateBitmapdrawClockFace(){
Bitmapbm=Bitmap.createBitmap(width,height,config);

Canvascanvas=newCanvas(bm);
Paintpaint=newPaint();
paint.setAntiAlias(true);//锯齿
paint.setStyle(Paint.Style.STROKE);//空心
paint.setStrokeWidth(5);
paint.setColor(Color.parseColor("#333333"));

//外层圆
canvas.drawCircle(width/2,height/2,width/2,paint);

//內层圆--》圆心
paint.setStyle(Paint.Style.FILL);
canvas.drawCircle(width/2,height/2,10,paint);

//循环画刻度(旋转画刻度)
for(inti=0;i<12;i++){
if(i%3==0){
paint.setStrokeWidth(10);
canvas.drawLine(width/2,0,width/2,24,paint);
canvas.rotate(30,width/2,height/2);
}else{
canvas.drawLine(width/2,0,width/2,10,paint);
canvas.rotate(30,width/2,height/2);
}
}


returnbm;
}

privateBitmapdrawClock(){
Bitmapbm=drawClockFace();

Canvascanvas=newCanvas(bm);

Paintpaint=newPaint();
paint.setAntiAlias(true);
paint.setColor(Color.parseColor("#333333"));

mCalendar=Calendar.getInstance();
mHour=mCalendar.get(Calendar.HOUR);
mMinute=mCalendar.get(Calendar.MINUTE);
mSecond=mCalendar.get(Calendar.SECOND);

//画小时指针
paint.setStrokeWidth(10);
mDegrees=mHour*30+mMinute/2;
length=(width/2)*0.7f;
canvas.save();
canvas.rotate(mDegrees,width/2,height/2);
canvas.drawLine(width/2,height/2,width/2,height-(height/2)-length,paint);
canvas.restore();
//canvas.rotate(360-mDegrees,width/2,height/2);

//画分钟指针
paint.setStrokeWidth(4);
mDegrees=mMinute*6+mSecond/10;
length=(width/2)*0.78f;
canvas.save();
canvas.rotate(mDegrees,width/2,height/2);
canvas.drawLine(width/2,height/2,width/2,height-(height/2)-length,paint);
canvas.restore();
//canvas.rotate(360-mDegrees,width/2,height/2);

//画分钟指针
paint.setStrokeWidth(2);
mDegrees=mSecond*6;
length=(width/2)*0.92f;
canvas.save();
canvas.rotate(mDegrees,width/2,height/2);
canvas.drawLine(width/2,height/2,width/2,height-(height/2)-length,paint);
canvas.restore();

returnbm;
}

@Override
publicvoidonClick(Viewv){
switch(v.getId()){
caseR.id.btn_start:
mIsRunning=true;
newClockTask().execute("");
break;
caseR.id.btn_stop:
mIsRunning=false;
break;
}
}

@Override
protectedvoidonDestroy(){
super.onDestroy();
mIsRunning=false;
}

privateclassClockTaskextendsAsyncTask{

@Override
protectedObjectdoInBackground(Object...objects){
while(mIsRunning){
publishProgress("");
try{
Thread.sleep(1000);
}catch(InterruptedExceptione){
e.printStackTrace();
}
}
returnnull;
}

@Override
protectedvoidonProgressUpdate(Object...values){
super.onProgressUpdate(values);
mClockImageView.setImageBitmap(drawClock());
}
}


}

点击运行就可以了，这样手机就可以当手表用了，真的神奇。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

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android自定义手表效果

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