由于项目要求，需要写一个加载动画，正在加载的时候转圈，加载成功后出现笑脸，加载失败后出现哭脸，于是写了个自定义view,现在贴出来

public class FaceView extends View {

private int status = 0;//0 普通 1成功 2失败

public static final int NORMAL = 0;

public static final int SUCCESS = 1;

public static final int FAILED = 2;

/**

* 画笔对象的引用

*/

private Paint paintArc;

private Paint paintRing;//圆环

private Paint paintEye; //眼睛

private Paint paintMouth;//嘴巴

/**

* 圆环的颜色

*/

private int roundColor;

/**

* 圆环进度的颜色

*/

private int roundProgressColor;

/**

* 圆环的宽度

*/

private float roundWidth;

/**

* 最大进度

*/

private int max;

/**

* 当前进度

*/

private int progress = 0;

private boolean finish = false;

private int eyeRadius = 1;

private long maxTimer = 10;

private int mActionHeartbeat = 1 ;

private CountdownTimerListener mListener;

public FaceView(Context context) {

this(context, null);

}

public FaceView(Context context, AttributeSet attrs) {

this(context, attrs, 0);

}

public FaceView(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

paintRing = new Paint();

paintArc = new Paint();

paintEye = new Paint();

paintMouth = new Paint();

TypedArray mTypedArray = context.obtainStyledAttributes(attrs,

com.qeebike.map.R.styleable.FaceView);

//获取自定义属性和默认值

roundColor = mTypedArray.getColor(com.qeebike.map.R.styleable.FaceView_roundColor, Color.RED);

roundProgressColor = mTypedArray.getColor(com.qeebike.map.R.styleable.FaceView_roundProgressColor, Color.GREEN);

roundWidth = mTypedArray.getDimension(com.qeebike.map.R.styleable.FaceView_roundWidth, 5);

max = mTypedArray.getInteger(com.qeebike.map.R.styleable.FaceView_max, 100);

maxTimer = AppBaseConfigManager.getInstance().getmAppBaseConfigInfo().getBaseInfo().getUnlockTimeOut();

mTypedArray.recycle();

}

private void initPaint() {

}

@Override

protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

/**

* 画最外层的大圆环

*/

int centre = getWidth() / 2; //获取圆心的x坐标

int quarter = getWidth() / 4;

int third = getWidth() / 3;

int radius = (int) (centre - roundWidth / 2); //圆环的半径

paintRing.setColor(roundColor); //设置圆环的颜色

paintRing.setStyle(Paint.Style.STROKE); //设置空心

paintRing.setStrokeWidth(roundWidth); //设置圆环的宽度

paintRing.setAntiAlias(true); //消除锯齿

paintArc.setColor(roundColor); //设置圆环的颜色

paintArc.setStyle(Paint.Style.STROKE); //设置空心

paintArc.setStrokeWidth(roundWidth); //设置圆环的宽度

paintArc.setAntiAlias(true); //消除锯齿

paintArc.setStrokeCap(Paint.Cap.ROUND);

if (status == FAILED) {

paintArc.setColor(roundColor); //设置进度的颜色

} else {

paintArc.setColor(roundProgressColor); //设置进度的颜色

}

if (status == FAILED) {

paintEye.setColor(roundColor);

} else {

paintEye.setColor(roundProgressColor);

}

paintEye.setStyle(Paint.Style.FILL);

paintEye.setAntiAlias(true);

if (status == FAILED) {

paintMouth.setColor(roundColor);

} else {

paintMouth.setColor(roundProgressColor);

}

paintMouth.setStyle(Paint.Style.STROKE); //设置空心

paintMouth.setStrokeWidth(roundWidth/2); //设置圆环的宽度

paintMouth.setAntiAlias(true);

paintMouth.setStrokeCap(Paint.Cap.ROUND);

//设置进度是实心还是空心

RectF oval = new RectF(centre - radius, centre - radius, centre

+ radius, centre + radius); //用于定义的圆弧的形状和大小的界限

RectF ovalMouthSuccess = new RectF((float) (centre - radius * 0.75), (float) (centre - radius * 0.70),

(float) (centre + radius * 0.70), (float) (centre + radius * 0.75));

RectF ovalMouthFailed = new RectF(centre - (int)(radius *0.65), (int)(centre+ radius*0.35),

centre + (int)(radius *0.65), getWidth());

int current = 360 * progress / max;

// int current = 270;

if (status == NORMAL) {

if (current >= 270) {

canvas.drawArc(oval, current - 270, 270, false, paintArc);

} else {

canvas.drawArc(oval, 0, current, false, paintArc); //根据进度画圆弧

}

postDelayed(new Runnable() {

@Override

public void run() {

progress++;

postInvalidate();

}

}, 1);

} else if (status == SUCCESS) {

canvas.drawCircle(centre, centre, radius, paintRing); //画出圆环

canvas.drawArc(oval, 0, 360, false, paintArc);

canvas.drawCircle(quarter, third, eyeRadius, paintEye);

canvas.drawCircle(getWidth() - quarter, third, eyeRadius, paintEye);

canvas.drawArc(ovalMouthSuccess, 0, 10 * eyeRadius, false, paintMouth);

if (!finish) {

postDelayed(new Runnable() {

@Override

public void run() {

eyeRadius++;

if (eyeRadius == 18) {

finish = true;

}

postInvalidate();

}

}, 1);

}

} else if (status == FAILED) {

canvas.drawCircle(centre, centre, radius, paintRing); //画出圆环

canvas.drawArc(oval, 0, 360, false, paintArc);

canvas.drawCircle(quarter, third, eyeRadius, paintEye);

canvas.drawCircle(getWidth() - quarter, third, eyeRadius, paintEye);

canvas.drawArc(ovalMouthFailed, -160, (float) (eyeRadius * 7.777777), false, paintMouth);

if (!finish) {

postDelayed(new Runnable() {

@Override

public void run() {

eyeRadius++;

if (eyeRadius == 18) {

finish = true;

}

postInvalidate();

}

}, 1);

}

}

}

public void setStatus(int status1) {

this.status = status1;

if (status1 == SUCCESS) {

postInvalidate();

} else if (status1 == FAILED) {

paintMouth.setColor(roundColor);

paintArc.setColor(roundColor);

paintEye.setColor(roundColor);

}

}

public void reset() {

maxTimer = AppBaseConfigManager.getInstance().getmAppBaseConfigInfo().getBaseInfo().getUnlockTimeOut();

status = NORMAL;

progress = 1000;

eyeRadius = 1;

postInvalidate();

finish = false;

mHandler.sendEmptyMessage(mActionHeartbeat);

}

/**

* 设置进度的最大值

*

* @param max

*/

public synchronized void setMax(int max) {

if (max < 0) {

throw new IllegalArgumentException("max not less than 0");

}

this.max = max;

}

public void setmListener(CountdownTimerListener mListener) {

this.mListener = mListener;

}

public interface CountdownTimerListener{

//倒计时是否到达

public void onTimeArrive(boolean isArrive);

}

private Handler mHandler = new Handler() {

public void handleMessage(android.os.Message msg) {

if(msg.what == mActionHeartbeat){

maxTimer = maxTimer - 1000;

if (maxTimer > 0) {

mHandler.sendEmptyMessageDelayed(mActionHeartbeat,1000);

}else{

setStatus(FAILED);

if(mListener!=null){

mListener.onTimeArrive(false);

}

}

}

};

};

}

自定义属性

使用

1、XML

android:id="@id/loading_view"

android:layout_width="130dp"

android:layout_height="130dp"

android:layout_gravity="center"

app:roundProgressColor="@color/colorPrimary"

app:roundWidth="8dp"

app:roundColor="@color/text_gray_normal"

/>

2、Java

mFaceView= (FaceView) view.findViewById(R.id.loading_view);

//开始动画

mFaceView.reset();

//加载成功

mFaceView.setStatus(FaceView.SUCCESS);

//加载失败

mFaceView.setStatus(FaceView.FAILED);

效果展示(静图展示三种状态的样式，实则是动态动画)

91CA375B-BC75-4DDE-B00C-33636AC94DE5.png

AEEADCC4-C65E-49D2-AC8E-21EE27B0F9DB.png

FA5F30C4-0DDB-434E-8B6F-D857C2698A51.png