最终实现效果：每次都可以弹出最新的数据，相同数据避免重复弹出。
先看效果：
实现思路：
判断toast对象是否为空，为空则新建，不为空则先cancel再弹出，相关代码：
if (toast == null) {
/*toast为空新建*/
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
} else {
/*如果本次弹出数据与上一次不同，则取消正在弹出的toast，重新弹出*/
toast?.cancel()
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
}
toast?.show()
重复弹出可以判断新数据和旧数据是否相同，如果相同则加上2s的时间限制，相关代码：
if (toast == null) {
/*toast为空新建*/
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
time = System.currentTimeMillis()
} else if (message.toString() != messageOld) {
/*如果本次弹出数据与上一次不同，则取消正在弹出的toast，重新弹出*/
toast?.cancel()
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
time = System.currentTimeMillis()
} else {
/*防止重复弹出*/
if (System.currentTimeMillis() - time > 2000) {
toast?.cancel()
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
time = System.currentTimeMillis()
}
}
toast?.show()
messageOld = message.toString()
具体代码--Kotlin：
object ToastUtils {
@JvmField
var isShow = true
@JvmField
var messageOld: String? = null
@JvmField
var time: Long = 0
@JvmField
var toast: Toast? = null
/**
* 短时间显示Toast
* @param context
* @param message 显示字符串
* @param gravity 显示位置
*/
fun showShort(context: Context?, message: CharSequence, gravity: Int) {
showToast(context, message, gravity, Toast.LENGTH_SHORT)
}
/**
* 短时间显示Toast
* @param context
* @param message 显示字符串
* @param gravity 显示位置
* @param duration 持续时间
*/
@SuppressLint("ShowToast")
fun showToast(context: Context?, message: CharSequence, gravity: Int, duration: Int) {
if (isShow) {
if (toast == null) {
/*toast为空新建*/
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
time = System.currentTimeMillis()
} else if (message.toString() != messageOld) {
/*如果本次弹出数据与上一次不同，则取消正在弹出的toast，重新弹出*/
toast?.cancel()
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
time = System.currentTimeMillis()
} else {
/*防止重复弹出*/
if (System.currentTimeMillis() - time > 2000) {
toast?.cancel()
toast = Toast.makeText(context, message, duration)
toast?.setGravity(gravity, 0, 0)
time = System.currentTimeMillis()
}
}
toast?.show()
messageOld = message.toString()
}
}
/**
* 短时间显示Toast
* @param context
* @param message 显示字符串
*/
fun showShort(context: Context?, message: CharSequence) {
showShort(context, message, Gravity.BOTTOM)
}
/**
* 短时间显示Toast
* @param context
* @param message 显示字符串
*/
fun showShortCenter(context: Context?, message: CharSequence) {
showShort(context, message, Gravity.CENTER)
}
/**
* 长时间Toast
* @param context
* @param message 显示字符串
*/
fun showCenterLong(context: Context?, message: CharSequence) {
showToast(context, message, Gravity.CENTER, Toast.LENGTH_LONG)
}
/**
* 长时间Toast
* @param context
* @param message 显示字符串
*/
fun showShortLong(context: Context?, message: CharSequence) {
showToast(context, message, Gravity.BOTTOM, Toast.LENGTH_LONG)
}
}
具体代码--Java：
public class ToastUtils {
private ToastUtils() {
}
public static boolean isShow = true;
public static String messageOld;
public static long time;
public static Toast toast;
/**
* 短时间显示Toast
*
* @param context
* @param message 显示字符串
* @param gravity 显示位置
*/
@SuppressLint("ShowToast")
public static void showShort(Context context, CharSequence message, int gravity) {
showToast(context, message, gravity, Toast.LENGTH_SHORT);
}
/**
* 短时间显示Toast
*
* @param context
* @param message 显示字符串
* @param gravity 显示位置
*/
@SuppressLint("ShowToast")
public static void showToast(Context context, CharSequence message, int gravity, int duration) {
if (isShow) {
if (toast == null) {
// 如果Toast对象为空了，那么需要创建一个新的Toast对象
toast = Toast.makeText(context, message, duration);
toast.setGravity(gravity, 0, 0);
time = System.currentTimeMillis();
} else if (!message.toString().equals(messageOld)) {
//如果本次弹出数据与上一次不同，则取消正在弹出的toast，重新弹出
toast.cancel();
toast = Toast.makeText(context, message, duration);
toast.setGravity(gravity, 0, 0);
time = System.currentTimeMillis();
} else {
/*防止重复弹出*/
if (System.currentTimeMillis() - time > 2000) {
toast.cancel();
toast = Toast.makeText(context, message, duration);
toast.setGravity(gravity, 0, 0);
time = System.currentTimeMillis();
}
}
toast.show();
messageOld = message.toString();
}
}
/**
* 短时间显示Toast
*
* @param context
* @param message 显示字符串
*/
@SuppressLint("ShowToast")
public static void showShort(Context context, CharSequence message) {
showShort(context, message, Gravity.BOTTOM);
}
/**
* 短时间显示Toast
*
* @param context
* @param message 显示字符串
*/
public static void showShortCenter(Context context, CharSequence message) {
showShort(context, message, Gravity.CENTER);
}
/**
* 长时间Toast
*
* @param context
* @param message 显示字符串
*/
@SuppressLint("ShowToast")
public static void showCenterLong(Context context, CharSequence message) {
showToast(context, message, Gravity.CENTER, Toast.LENGTH_LONG);
}
/**
* 长时间Toast
*
* @param context
* @param message 显示字符串
*/
@SuppressLint("ShowToast")
public static void showShortLong(Context context, CharSequence message) {
showToast(context, message, Gravity.BOTTOM, Toast.LENGTH_LONG);
}
}
|
转播
