Question

如何防止android Toast重复显示

Answer 1

private final static int DURATION = 1000;

private static Toast mToast;
private static Handler mHandler = new Handler();
private static Runnable r = new Runnable() {
public void run() {
mToast.cancel();
}
};

public static void showToast( String text) {
mHandler.removeCallbacks(r);
if (mToast != null) {
mToast.setText(text);//不为空，内容直接替换
} else {
mToast = Toast.makeText(SocialContext.getInstance().getAppContext(), text, Toast.LENGTH_SHORT);
}
mHandler.postDelayed(r, DURATION);//实现只用一秒显示
mToast.show();
}

这里并没有做内容重复的判断，可以自己去加一下