这篇文章给大家分享的是有关Android中Toast怎么使用的内容。小编觉得挺实用的，因此分享给大家做个参考，一起跟随小编过来看看吧。
老规矩，先上效果图吧
主要实现了几种常用的方式：
1.最基本的Toast
系统自带Toast采用的是队列的方式， 等当前Toast消失后， 下一个Toast才能显示出来；原因是Toast的管理是在队列中，点击一次，就会产生一个新的Toast，要等这个队列中的Toast处理完，这个显示Toast的任务才算结束。so~ 我们可以把Toast改成单例模式，没有Toast再新建它，这样也就解决了连续点击Toast，一直在显示的问题。
2.自定义位置的Toast
3.自定义布局（带图片）的Toast
4.自定义带动画效果的Toast控件
OK，下面上代码
代码实现：
先上Activity的代码
public class ToastActivity extends BaseTitleActivity { @BindView(R.id.btn_basic_toast) Button basicToast; @BindView(R.id.btn_basic_toast2) Button basicToast2; @BindView(R.id.btn_custom_location) Button customLocation; @BindView(R.id.btn_custom_picture) Button customPicture; @BindView(R.id.btn_custom_smile) Button customSmile; @BindView(R.id.btn_custom_smile2) Button customSmile2; // private static CustomToast customToastView; public static void newInstance(Context context){ Intent intent = new Intent(context, ToastActivity.class); context.startActivity(intent); } @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public int getResourcesId() { return R.layout.activity_toast; } @Override public void initView() { } @Override public void initData() { } @Override public int getTitleText() { return R.string.play_toast; } @OnClick( {R.id.btn_basic_toast, R.id.btn_custom_location, R.id.btn_custom_picture, R.id.btn_custom_smile, R.id.btn_custom_smile2, R.id.btn_basic_toast2} ) public void onViewClick(View v){ switch (v.getId()){ case R.id.btn_basic_toast: ToastUtils.showToast(this, "这是最基本的Toast"); break; case R.id.btn_basic_toast2: ToastUtils.showToast(this, "===已更新==="); break; case R.id.btn_custom_location: Toast toast = Toast.makeText(ToastActivity.this, "自定义位置的Toast", Toast.LENGTH_SHORT); toast.setGravity(Gravity.LEFT,0, 0); toast.show(); break; case R.id.btn_custom_picture: Toast result = new Toast(this); View toastView = LayoutInflater.from(this).inflate(R.layout.toast_custom, null); ImageView img = (ImageView) toastView.findViewById(R.id.iv_img); TextView msg = (TextView) toastView.findViewById(R.id.tv_msg); img.setImageResource(R.mipmap.jyfr_icon_mpossh4x); msg.setText(R.string.picture_toast); result.setView(toastView); result.setGravity(Gravity.BOTTOM, 0 , 0); result.setDuration(Toast.LENGTH_SHORT); result.show(); break; case R.id.btn_custom_smile: ToastUtils.showToast(this, "在看我", true); break; case R.id.btn_custom_smile2: ToastUtils.showToast(this, "==还在看我==", true); break; default: break; } }}对应的布局代码较为简单，就不贴了
下面是第四种效果实现的布局
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10dp" android:background="@drawable/shape_background_toast"> <ImageView android:id="@+id/iv_img" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:scaleType="center" android:visibility="visible"/> <com.example.xuetaotao.helloworld.widget.CustomToast android:id="@+id/smileView" android:layout_width="50dp" android:layout_height="50dp" android:layout_margin="10dp" android:layout_gravity="center" /> <TextView android:id="@+id/tv_msg" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:text="" android:textSize="18sp" android:textColor="@color/common_blue"/> </LinearLayout>接着是自定义控件部分的代码
public class CustomToast extends View { private Toast toast; private Context context; RectF rectF = new RectF(); //矩形，设置Toast布局时使用 ValueAnimator valueAnimator; //属性动画 private Paint paint; //自定义View的画笔 float mAnimatedValue = 0f; private float mWidth = 0f; //view的宽 private float mPadding = 0f; //view的内边距 private float endAngle = 0f; //圆弧结束的度数 private float mEyeWidth = 0f; //笑脸的眼睛半径 private boolean isSmileLeft = false; private boolean isSmileRight = false; public CustomToast(Context context){ super(context); this.context = context; } public CustomToast(Context context, AttributeSet attrs){ super(context, attrs); this.context = context; } public CustomToast(Context context, AttributeSet attrs, int defStyleAttr){ super(context, attrs, defStyleAttr); this.context = context; } private void initPaint(){ paint = new Paint(); paint.setAntiAlias(true); //抗锯齿 paint.setStyle(Paint.Style.STROKE); //画笔的样式：空心 paint.setColor(Color.parseColor("#5cb85c")); //绘制的颜色 paint.setStrokeWidth(dip2px(2)); //设置笔刷的粗细 } private void initRect(){ rectF = new RectF(mPadding, mPadding, mWidth-mPadding, mWidth-mPadding); } //dip转px。为了支持多分辨率手机 public int dip2px(float dpValue){ final float scale = getContext().getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); initPaint(); initRect(); mWidth = getMeasuredWidth(); //view的宽度 mPadding = dip2px(10); mEyeWidth = dip2px(3); } //每次触摸了自定义View/ViewGroup时都会触发onDraw()方法 @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); paint.setStyle(Paint.Style.STROKE); canvas.drawArc(rectF, 180, endAngle, false, paint ); //画微笑圆弧 paint.setStyle(Paint.Style.FILL); //画笔的样式：实心 if (isSmileLeft){ canvas.drawCircle(mPadding+mEyeWidth+mEyeWidth/2, mWidth/3, mEyeWidth, paint); //绘制圆圈 } if (isSmileRight){ canvas.drawCircle(mWidth-mPadding-mEyeWidth-mEyeWidth/2, mWidth/3, mEyeWidth, paint); } } //开启动画 public void startAnimator(boolean playAnimate){ if (playAnimate){ stopAnimator(); startViewAnim(0f, 1f, 2000); } } //停止动画 public void stopAnimator(){ if (valueAnimator != null){ clearAnimation(); isSmileLeft = false; isSmileRight = false; mAnimatedValue = 0f; valueAnimator.end(); } } public ValueAnimator startViewAnim(float start, float end, long time){ valueAnimator = ValueAnimator.ofFloat(start, end); //设置 ValueAnimator 的起始值和结束值 valueAnimator.setDuration(time); //设置动画时间 valueAnimator.setInterpolator(new LinearInterpolator()); //设置补间器，控制动画的变化速率 valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { //设置监听器。监听动画值的变化，做出相应方式 @Override public void onAnimationUpdate(ValueAnimator animation) { mAnimatedValue = (float) valueAnimator.getAnimatedValue(); if (mAnimatedValue < 0.5){ isSmileLeft = false; isSmileRight = false; endAngle = -360 * (mAnimatedValue); } else if (mAnimatedValue > 0.55 && mAnimatedValue < 0.7){ endAngle = -180; isSmileLeft = true; isSmileRight = false; } else{ endAngle = -180; isSmileLeft = true; isSmileRight = true; } postInvalidate(); //重绘 } }); if (!valueAnimator.isRunning()){ valueAnimator.start(); } return valueAnimator; } public void show(String message, boolean playAnimate){ if (toast == null){ toast = new Toast(context); } View customToastView = LayoutInflater.from(context).inflate(R.layout.toast_custom, null); TextView msg2 = (TextView) customToastView.findViewById(R.id.tv_msg); msg2.setText(message); msg2.setBackgroundResource(R.drawable.shape_text_toast); msg2.setTextColor(Color.parseColor("#ffffff")); ImageView img2 = (ImageView) customToastView.findViewById(R.id.iv_img); img2.setImageResource(R.mipmap.jyfr_icon_mpossh4x);// img2.setVisibility(View.GONE); CustomToast customToast = (CustomToast) customToastView.findViewById(R.id.smileView); customToast.startAnimator(playAnimate); toast.setView(customToastView); toast.setGravity(Gravity.BOTTOM, 0 , 0); toast.setDuration(Toast.LENGTH_SHORT); toast.show(); } }最后把效果一和四共用到的工具类贴上来，主要是为了解决连续点击Toast，一直在显示的问题。补充一点：效果四仍然是基于系统原生Toast的显示方法来显示的，所以那个连续点击一直显示的问题还是存在的，后面再试试不用这种方式吧。
public class ToastUtils { private static Toast toast; private static CustomToast customToast; public static void showToast(Context context, String message, boolean playAnimate){ if (customToast == null){ customToast = new CustomToast(context); } customToast.show(message, playAnimate); } public static void showToast(Context context, String content){ if (toast == null){ toast = Toast.makeText(context, content, Toast.LENGTH_SHORT); } else { toast.setText(content); } toast.show(); } }感谢各位的阅读！关于“Android中Toast怎么使用”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，让大家可以学到更多知识，如果觉得文章不错，可以把它分享出去让更多的人看到吧！
