Toast 我想我们应该使用的都很多,一般我们使用默认设置较多,但是默认设置往往不能满足我们的需求,那我们现在来自定义下:
默认Toast:
Toast.makeText(MainActivity.this,"点击按钮",Toast.LENGTH_SHORT).show();
设置Toast位置:
通过setGravity设置Toast位置,可以是
Gravity.CENTER:中间
Gravity.BOTTOM:下方
Gravity.TOP:上方
Gravity.RIGHT:右边
Gravity.LEFT:左边
Toast toast = Toast.makeText(getApplicationContext(), "点击按钮", Toast.LENGTH_SHORT);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
Toast 也可以是个布局:这个布局里可以是任何控件 图片 文字 等
Toast toast2 = new Toast(MainActivity.this);
View view = LayoutInflater.from(MainActivity.this).inflate(R.layout.toast_custom, null);
toast2.setView(view);
toast2.setGravity(Gravity.CENTER, 0, 0);
toast2.show();
下面附上一个 ToastUtil类:
public class ToastUitl {
private static Toast toast;
private static Toast toast2;
/**
* 初始化Toast(消息,时间)
*/
private static Toast initToast(CharSequence message, int duration) {
if (toast == null) {
toast = Toast.makeText(BaseApplication.getAppContext(), message, duration);
} else {
//设置文字
toast.setText(message);
//设置存续期间
toast.setDuration(duration);
}
return toast;
}
/**
* 短时间显示Toast(消息 String等)
*/
public static void showShort(CharSequence message) {
initToast(message, Toast.LENGTH_SHORT).show();
}
/**
* 短时间显示Toast(资源id)
*/
public static void showShort(int strResId) {
initToast(BaseApplication.getAppContext().getResources().getText(strResId), Toast.LENGTH_SHORT).show();
}
/**
* 长时间显示Toast(消息 String等)
*/
public static void showLong(CharSequence message) {
initToast(message, Toast.LENGTH_LONG).show();
}
/**
* 长时间显示Toast(资源id)
*/
public static void showLong(int strResId) {
initToast(BaseApplication.getAppContext().getResources().getText(strResId), Toast.LENGTH_LONG).show();
}
/**
* 自定义显示Toast时间(消息 String等,时间)
*/
public static void show(CharSequence message, int duration) {
initToast(message, duration).show();
}
/**
* 自定义显示Toast时间(消息 资源id,时间)
*/
public static void show(int strResId, int duration) {
initToast(BaseApplication.getAppContext().getResources().getText(strResId), duration).show();
}
/**
* 显示有image的toast 这是个view
*/
public static Toast showToastWithImg(final String tvStr, final int imageResource) {
if (toast2 == null) {
toast2 = new Toast(BaseApplication.getAppContext());
}
View view = LayoutInflater.from(BaseApplication.getAppContext()).inflate(R.layout.toast_custom, null);
TextView tv = (TextView) view.findViewById(R.id.toast_custom_tv);
tv.setText(TextUtils.isEmpty(tvStr) ? "" : tvStr);
ImageView iv = (ImageView) view.findViewById(R.id.toast_custom_iv);
if (imageResource > 0) {
iv.setVisibility(View.VISIBLE);
iv.setImageResource(imageResource);
} else {
iv.setVisibility(View.GONE);
}
toast2.setView(view);
toast2.setGravity(Gravity.CENTER, 0, 0);
toast2.show();
return toast2;
}
}
对应的布局文件:此布局文件根据自己需求自定义
补加:
自定义Toast 填充满整个屏幕:
Toast toast2 = new Toast(MainActivity.this);
View view = LayoutInflater.from(MainActivity.this).inflate(R.layout.toast_custom, null);
ImageView iv_toast = (ImageView) view.findViewById(R.id.iv_toast);
TextView tv_toast = (TextView) view.findViewById(R.id.tv_toast);
toast2.setView(view);
toast2.setGravity(Gravity.FILL_HORIZONTAL | Gravity.VERTICAL_GRAVITY_MASK, 0, 0);
toast2.show();
注意:布局文件要
android:layout_width="match_parent" android:layout_height="match_parent"