一、ToastUtils编写
package com.blankj.utilcode.util;
import android.content.Context;
import android.os.Handler;
import android.os.Looper;
import android.support.annotation.ColorInt;
import android.support.annotation.DrawableRes;
import android.support.annotation.LayoutRes;
import android.support.annotation.Nullable;
import android.support.annotation.StringRes;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.style.ForegroundColorSpan;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Toast;
import java.lang.ref.WeakReference;
public final class ToastUtils {
private static final int DEFAULT_COLOR = 0x12000000;
private static Toast sToast;
private static int gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
private static int xOffset = 0;
private static int yOffset = (int) (64 * Utils.getContext().getResources().getDisplayMetrics().density + 0.5);
private static int backgroundColor = DEFAULT_COLOR;
private static int bgResource = -1;
private static int messageColor = DEFAULT_COLOR;
private static WeakReference sViewWeakReference;
private static Handler sHandler = new Handler(Looper.getMainLooper());
private ToastUtils() {
throw new UnsupportedOperationException("u can't instantiate me...");
}
/**
* 设置吐司位置
*
* @param gravity 位置
* @param xOffset x偏移
* @param yOffset y偏移
*/
public static void setGravity(int gravity, int xOffset, int yOffset) {
ToastUtils.gravity = gravity;
ToastUtils.xOffset = xOffset;
ToastUtils.yOffset = yOffset;
}
/**
* 设置吐司view
*
* @param layoutId 视图
*/
public static void setView(@LayoutRes int layoutId) {
LayoutInflater inflate = (LayoutInflater) Utils.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
sViewWeakReference = new WeakReference<>(inflate.inflate(layoutId, null));
}
/**
* 设置吐司view
*
* @param view 视图
*/
public static void setView(@Nullable View view) {
sViewWeakReference = view == null ? null : new WeakReference<>(view);
}
/**
* 获取吐司view
*
* @return view
*/
public static View getView() {
if (sViewWeakReference != null) {
final View view = sViewWeakReference.get();
if (view != null) {
return view;
}
}
if (sToast != null) return sToast.getView();
return null;
}
/**
* 设置背景颜色
*
* @param backgroundColor 背景色
*/
public static void setBackgroundColor(@ColorInt int backgroundColor) {
ToastUtils.backgroundColor = backgroundColor;
}
/**
* 设置背景资源
*
* @param bgResource 背景资源
*/
public static void setBgResource(@DrawableRes int bgResource) {
ToastUtils.bgResource = bgResource;
}
/**
* 设置消息颜色
*
* @param messageColor 颜色
*/
public static void setMessageColor(@ColorInt int messageColor) {
ToastUtils.messageColor = messageColor;
}
/**
* 安全地显示短时吐司
*
* @param text 文本
*/
public static void showShortSafe(final CharSequence text) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(text, Toast.LENGTH_SHORT);
}
});
}
/**
* 安全地显示短时吐司
*
* @param resId 资源Id
*/
public static void showShortSafe(final @StringRes int resId) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(resId, Toast.LENGTH_SHORT);
}
});
}
/**
* 安全地显示短时吐司
*
* @param resId 资源Id
* @param args 参数
*/
public static void showShortSafe(final @StringRes int resId, final Object... args) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(resId, Toast.LENGTH_SHORT, args);
}
});
}
/**
* 安全地显示短时吐司
*
* @param format 格式
* @param args 参数
*/
public static void showShortSafe(final String format, final Object... args) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(format, Toast.LENGTH_SHORT, args);
}
});
}
/**
* 安全地显示长时吐司
*
* @param text 文本
*/
public static void showLongSafe(final CharSequence text) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(text, Toast.LENGTH_LONG);
}
});
}
/**
* 安全地显示长时吐司
*
* @param resId 资源Id
*/
public static void showLongSafe(final @StringRes int resId) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(resId, Toast.LENGTH_LONG);
}
});
}
/**
* 安全地显示长时吐司
*
* @param resId 资源Id
* @param args 参数
*/
public static void showLongSafe(final @StringRes int resId, final Object... args) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(resId, Toast.LENGTH_LONG, args);
}
});
}
/**
* 安全地显示长时吐司
*
* @param format 格式
* @param args 参数
*/
public static void showLongSafe(final String format, final Object... args) {
sHandler.post(new Runnable() {
@Override
public void run() {
show(format, Toast.LENGTH_LONG, args);
}
});
}
/**
* 显示短时吐司
*
* @param text 文本
*/
public static void showShort(CharSequence text) {
show(text, Toast.LENGTH_SHORT);
}
/**
* 显示短时吐司
*
* @param resId 资源Id
*/
public static void showShort(@StringRes int resId) {
show(resId, Toast.LENGTH_SHORT);
}
/**
* 显示短时吐司
*
* @param resId 资源Id
* @param args 参数
*/
public static void showShort(@StringRes int resId, Object... args) {
show(resId, Toast.LENGTH_SHORT, args);
}
/**
* 显示短时吐司
*
* @param format 格式
* @param args 参数
*/
public static void showShort(String format, Object... args) {
show(format, Toast.LENGTH_SHORT, args);
}
/**
* 显示长时吐司
*
* @param text 文本
*/
public static void showLong(CharSequence text) {
show(text, Toast.LENGTH_LONG);
}
/**
* 显示长时吐司
*
* @param resId 资源Id
*/
public static void showLong(@StringRes int resId) {
show(resId, Toast.LENGTH_LONG);
}
/**
* 显示长时吐司
*
* @param resId 资源Id
* @param args 参数
*/
public static void showLong(@StringRes int resId, Object... args) {
show(resId, Toast.LENGTH_LONG, args);
}
/**
* 显示长时吐司
*
* @param format 格式
* @param args 参数
*/
public static void showLong(String format, Object... args) {
show(format, Toast.LENGTH_LONG, args);
}
/**
* 安全地显示短时自定义吐司
*/
public static void showCustomShortSafe() {
sHandler.post(new Runnable() {
@Override
public void run() {
show("", Toast.LENGTH_SHORT);
}
});
}
/**
* 安全地显示长时自定义吐司
*/
public static void showCustomLongSafe() {
sHandler.post(new Runnable() {
@Override
public void run() {
show("", Toast.LENGTH_LONG);
}
});
}
/**
* 显示短时自定义吐司
*/
public static void showCustomShort() {
show("", Toast.LENGTH_SHORT);
}
/**
* 显示长时自定义吐司
*/
public static void showCustomLong() {
show("", Toast.LENGTH_LONG);
}
/**
* 显示吐司
*
* @param resId 资源Id
* @param duration 显示时长
*/
private static void show(@StringRes int resId, int duration) {
show(Utils.getContext().getResources().getText(resId).toString(), duration);
}
/**
* 显示吐司
*
* @param resId 资源Id
* @param duration 显示时长
* @param args 参数
*/
private static void show(@StringRes int resId, int duration, Object... args) {
show(String.format(Utils.getContext().getResources().getString(resId), args), duration);
}
/**
* 显示吐司
*
* @param format 格式
* @param duration 显示时长
* @param args 参数
*/
private static void show(String format, int duration, Object... args) {
show(String.format(format, args), duration);
}
/**
* 显示吐司
*
* @param text 文本
* @param duration 显示时长
*/
private static void show(CharSequence text, int duration) {
cancel();
boolean isCustom = false;
if (sViewWeakReference != null) {
final View view = sViewWeakReference.get();
if (view != null) {
sToast = new Toast(Utils.getContext());
sToast.setView(view);
sToast.setDuration(duration);
isCustom = true;
}
}
if (!isCustom) {
if (messageColor != DEFAULT_COLOR) {
SpannableString spannableString = new SpannableString(text);
ForegroundColorSpan colorSpan = new ForegroundColorSpan(messageColor);
spannableString.setSpan(colorSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
sToast = Toast.makeText(Utils.getContext(), spannableString, duration);
} else {
sToast = Toast.makeText(Utils.getContext(), text, duration);
}
}
View view = sToast.getView();
if (bgResource != -1) {
view.setBackgroundResource(bgResource);
} else if (backgroundColor != DEFAULT_COLOR) {
view.setBackgroundColor(backgroundColor);
}
sToast.setGravity(gravity, xOffset, yOffset);
sToast.show();
}
/**
* 取消吐司显示
*/
public static void cancel() {
if (sToast != null) {
sToast.cancel();
sToast = null;
}
}
}
